December 10, 2025

Commercial Building HVAC Systems (How Owners Can Save Money)

Managing commercial building HVAC systems is one of the highest ongoing costs for property owners and facility teams. Between energy usage, maintenance schedules, and tenant comfort expectations, even small inefficiencies can lead to thousands of dollars in unnecessary spending every year.

The good news? You don’t have to replace all your HVAC systems to start saving. Strategic upgrades, smarter controls, and proactive maintenance can significantly reduce energy consumption, extend equipment life, and create better comfort across commercial spaces — while keeping operational budgets healthy.

Why System Design in Commercial Buildings Impacts Long-Term Cost

The HVAC strategy you choose early in a building’s life has a major impact on operating budgets for decades. In commercial buildings, the wrong design — whether oversized rooftop units or an outdated control strategy — leads to unnecessary energy consumption, more frequent repair needs, and shortened equipment life cycles.

Smart design decisions account for:

  • Local climate and load variability
  • How many zones or multiple rooms need conditioning
  • Occupant schedules and peak-use demands
  • Whether the building includes server rooms or high-load specialty areas
  • Existing infrastructure and installation costs

Types of HVAC Systems That Affect Operational Costs

Not all types of HVAC systems perform the same when it comes to energy usage, maintenance needs, and long-term savings potential. For building owners, the key is understanding which system design naturally supports better energy efficiency — and which can increase costs if not managed properly.

Cost-to-Performance Comparison for Commercial HVAC Systems

System Type Upfront Cost Energy Efficiency Best Uses
Direct Expansion (DX) / Packaged Unit $ ★★☆☆☆ Retail stores, office buildings, smaller commercial spaces
VRF / VRV Systems $$–$$$ ★★★★☆ Multi-room spaces, varying airflow, zoning, renovations
Multi Split Systems $$ ★★★☆☆ Multiple indoor units, lower-rise mixed use
Single Split Systems $ ★★★☆☆ Cool individual rooms, small suites
Chilled Water Systems $$$$ ★★★★★ Large buildings, campus-style facilities, heavy cooling loads
VAV System $$ ★★★★☆ Efficient variable airflow, dynamic load profiles
CAV System $ ★★☆☆☆ Simple applications where loads don’t vary
Heat Pumps $$ ★★★★☆ Both heating and cooling in electrified buildings

Variable Refrigerant Flow Systems — Zoned Control for Better Energy Savings

Variable refrigerant flow systems (also known as VRF systems or variable refrigerant volume systems) are increasingly popular for commercial buildings where energy flexibility and comfort customization are essential. Unlike traditional direct expansion systems that operate at one speed, VRF uses variable capacity to match cooling or heating output to each zone’s real-time needs.

Instead of conditioning the entire building at once, VRF can deliver cool air or heat only where it’s required. That reduces energy consumption, boosts comfort, and supports better operational control across multiple zones.

Why VRF Helps Owners Save Money

VRF offers a smart balance between performance and cost control:

  • Energy efficiency benefits from part-load operation
  • Simultaneous both heating and cooling in mixed-use areas
  • Scalability for office buildings and multi-tenant layouts
  • Improved occupant satisfaction → fewer comfort complaints and adjustments
  • Less ductwork can reduce installation costs

VRF Considerations for Owners

To protect long-term savings:

  • VRF requires properly trained commercial hvac contractors for service
  • Integration with building controls provides the best payoff
  • Ventilation should be paired with a dedicated outside air strategy
  • Access for maintenance must be planned correctly

When VRF is designed and maintained properly, the operational cost benefits compound year after year — making it a valuable long-term HVAC investment.

Multi Split Systems — Strong Value for Mixed Occupancy Patterns

Multi split systems offer a practical middle ground between simple single split systems and more advanced variable refrigerant flow (VRF) technology. With a multi-split, one outdoor unit connects to multiple indoor units, allowing zoned comfort across several rooms without the expense of a full VRF installation.

They provide reliable air conditioning and heating systems performance for commercial buildings where monitoring different zones matters — but where loads don’t vary enough to demand full VRF complexity.

When Multi-Splits Deliver Cost Savings

Owners see the most value in:

  • Multi room spaces like dental clinics, small offices, and segmented retail
  • Commercial spaces that don’t require advanced energy modeling
  • Projects where a moderate installation cost is necessary
  • Renovations where ductwork upgrades create delays or added expense

Fewer system components than VRF → lower upfront investment
More zoning flexibility than single split → stronger comfort & fewer complaints

Multi-Split vs. VRF — Key Differences for Owners

Feature Multi Split VRF / VRV Systems
Indoor units supported Several Many
Energy savings potential Good Excellent
Upfront cost $$ $$–$$$
Best fit Small–medium commercial property Medium–large commercial buildings
Controls & sensors Good Advanced
System flexibility Moderate High

Single Split Systems — Simple and Budget-Friendly for Small Spaces

When owners need a straightforward, budget-friendly HVAC solution for individual rooms or tenant suites, single split systems are often the best fit. These systems pair one outdoor unit with one indoor unit, delivering direct air conditioning or heating to a specific zone without requiring extensive ductwork or major building modifications.

This simplicity makes single splits an attractive choice for smaller commercial spaces—especially when keeping upfront expenses low is a priority.

Why Owners Choose Single Splits

Single split systems are a smart investment when:

  • A single system needs to serve a limited area
  • Cost control comes before advanced automation
  • Comfort requirements are straightforward and predictable
  • The existing building layout makes ducted installation difficult

What to Consider Before Installing

To ensure strong long-term performance:

  • Plan placement for both indoor unit and outdoor unit to maximize efficiency
  • Understand that additional zones will require additional equipment
  • Integrate with building controls when possible
  • Work with knowledgeable commercial HVAC contractors to size correctly

Variable Air Volume — Smarter Airflow, Lower Operating Costs

Variable Air Volume (VAV) systems help reduce energy waste in commercial buildings by adjusting how much air flows into each zone based on real-time demand. Unlike older airflow strategies that push the same amount of air all day, VAV systems rely on sensors, variable capacity, and smart controls to fine-tune comfort while minimizing energy consumption.

Whether a space is full, empty, or operating at partial load, the system automatically reduces airflow — cutting down on fan power and unnecessary conditioning.

Why VAV Helps Owners Save Money

Owners benefit from:

  • Energy efficiency gains through reduced fan speeds
  • Better zoning performance for multiple zones
  • Lower operational wear on air handling units
  • Enhanced tenant comfort during shifting occupancy hours
  • Compatibility with advanced building automation systems

Because VAV designs adjust to real building conditions, they can significantly outperform systems that maintain constant airflow even when loads are low.

CAV System — When Cost-Simplicity Works Against Efficiency

A CAV system (Constant Air Volume) supplies the same amount of air to each zone at all times, regardless of how a space is being used. This approach has been common in older commercial buildings because it is straightforward, reliable, and easy to operate.

However, simplicity comes at a cost: when airflow doesn’t adjust based on occupancy or temperature needs, the system often conditions more air than necessary — increasing energy consumption and operating expenses.

Where CAV Systems Still Make Sense

A CAV design can be a practical solution when:

  • Serving small spaces with predictable usage
  • Load conditions don’t vary much throughout the day
  • Budgets prioritize low upfront installation expense
  • Ease of operation outweighs advanced control needs

Heat Pumps — Electrification and Energy Efficiency Advantages

Modern heat pumps are becoming a top choice for building owners who want lower utility bills and reduced reliance on fossil fuels. Because they move thermal energy instead of generating it, heat pumps deliver both heating and cooling using far less electricity — improving energy efficiency while supporting sustainability goals.

As electrification initiatives expand nationwide, heat pumps help owners align HVAC decisions with regulatory expectations and environmental targets, without sacrificing comfort or reliability.

Where Heat Pumps Deliver Strong ROI

They offer major cost advantages in:

  • Mild-to-moderate climates where air conditioning dominates
  • Buildings transitioning away from steam or gas heating systems
  • Projects seeking green certifications or utility cost savings incentives
  • Systems requiring year-round performance with minimal equipment footprint

Heat pumps can be installed as:

  • Packaged unit rooftop replacements
  • Split system configurations for targeted zone control
  • Part of a VRF architecture to maximize efficiency in multiple zones

How Commercial HVAC Systems Cut Energy Waste Through Controls & Maintenance

Even the best-designed commercial hvac systems lose efficiency over time if they aren’t properly maintained or controlled. The fastest, lowest-cost path to cost savings usually isn’t replacing equipment — it’s optimizing what’s already running inside the building.

Owners who prioritize both preventive maintenance and smart controls can extend equipment life, reduce energy waste, and avoid expensive surprise repairs.

Preventive Maintenance → Lower Operating Costs

Regular maintenance helps commercial HVAC equipment operate as intended and avoid unnecessary strain. Key tasks include:

  • Cleaning coils and air handling units
  • Ensuring proper refrigerant charge in VRF or split systems
  • Replacing filters on schedule to protect indoor air quality
  • Checking fan speeds, belts, and motor performance
  • Keeping constant air volume and variable air volume system components calibrated

Even basic maintenance steps can prevent 5–40% in wasted energy (various studies show — depending on building type and maintenance frequency).

Fewer breakdowns → less downtime → longer equipment life
No surprise outages → better tenant satisfaction

Automated Controls → Smarter Runtime, Less Waste

Controls are a powerful cost-reduction lever because they prevent air conditioning or cold air delivery to spaces that don’t need it.

Strategies include:

  • Variable capacity control in VRF and multi split systems
  • Occupancy-based scheduling for multiple zones
  • Demand-controlled ventilation that limits treated outside air when unoccupied
  • Real-time performance monitoring for faster response to issues
  • Integrated building automation that eliminates manual adjustments

When a system automatically responds to real building conditions, it uses energy only when required — instead of running “just in case.”

The Combined Benefit

Maintenance + controls deliver the highest ROI because:

  • They improve performance without major capital investment
  • They enhance comfort and stability for tenants
  • They reduce stress on hvac equipment and components (like evaporator coils and compressors)

For many owners, the cheapest kilowatt-hour is the one you never have to use.

Planning Systems for Commercial Buildings Without Over-Investing

For owners reviewing systems for commercial buildings, the goal isn’t selecting the most advanced HVAC option — it’s choosing the system that aligns with how the building is actually used. Oversizing, over-engineering, or overspending can lead to unnecessary installation costs, higher utility bills, and more complex maintenance than needed.

Smart planning ensures every dollar invested contributes to comfort, reliability, and measurable energy savings.

Start With the Building’s True Needs

Before buying any new HVAC component, owners should evaluate:

  • Occupancy schedules and density
  • Peak vs. average cooling capacities required
  • Flexibility needs across different zones
  • Whether current ductwork and controls can support upgrades
  • Future plans for expansion or tenant turnover
  • Use cases such as server rooms or high-load specialty spaces

This avoids the common mistake of selecting equipment based on worst-case scenarios instead of everyday operation.

Right-sizing = lower capital expense and reduced ongoing power draw.

Match Systems to Space Type and Behavior

The “right” choice varies by property:

Building Example Best System Types Why It Works
Office buildings VRF or VAV Supports fluctuating occupancy + zoning
Retail stores Packaged or multi-split Fast installs + strong cost savings
Large buildings (campus or towers) Chilled water / VRF hybrids Efficient delivery to multiple rooms
Small commercial suites Single split systems Low upfront spend + targeted comfort

Think Controls First, Equipment Second

Upgrading controls or airflow strategy often delivers a faster ROI than swapping out large mechanical components. Owners can:

  • Add scheduling and occupancy-based control
  • Improve ventilation efficiency
  • Reduce energy consumption during off-hours
  • Extend equipment life and delay major replacements

With the right guidance, owners avoid over-investing — while still improving comfort and performance.

Cutting Costs Starts With the Right Strategy

The best path to saving money with commercial building HVAC systems starts before any equipment is purchased. Whether upgrading older units, implementing automation, or planning the next capital project, success comes from choosing solutions that match how your building truly operates — and where you want it to excel.

Gil-Bar’s specialists help property teams evaluate their buildings from end to end — uncovering cost-efficient HVAC improvements that enhance comfort, protect equipment, and drive sustainable performance over time.

When you’re ready to optimize your HVAC strategy, our team is here to help you move confidently — with solutions tailored to your property, your budget, and your goals.

December 9, 2025

What Type of Commercial HVAC Units Make Sense for 2026?

Choosing the right commercial HVAC units has always been a balancing act—meeting code requirements, improving occupant comfort, and keeping operating costs under control. But by 2026, engineering decisions will look very different. Sustainability expectations are rising, refrigerants are changing, and system performance is increasingly tied to energy efficiency, digital controls, and long-term lifecycle value.

With so many evolving variables, the HVAC industry is shifting toward systems that deliver efficient cooling, optimal comfort, compliance, and a lower total cost of ownership—all while supporting improved indoor air quality (IAQ) in commercial buildings of all sizes.

This guide explores the system types that make sense for commercial properties in the coming standards era, comparing packaged rooftop units, VRF technology, heat pump advancements, modular chillers, and more. You’ll also find insights on building type, climate zone, and maintenance considerations—so your next investment delivers durable performance long after 2026 arrives.

How 2026 Codes Are Reshaping Commercial HVAC Equipment Decisions

Engineering choices are now driven less by what fits the mechanical room—and more by what fits the future. In 2026, commercial HVAC equipment selection will be strongly shaped by:

▸ Refrigerant Transitions & Sustainability

Systems relying on phased-out refrigerants like R-410A will give way to low-GWP alternatives. This means designers must evaluate:

  • Refrigerant availability and safety
  • The durability and performance of transitioning models
  • The likelihood of future regulatory shifts

This reinforces the need for sustainability in long-term system planning.

▸ Energy Efficiency & Part-Load Responsiveness

Greater emphasis on:

  • Advanced compressors
  • Better ventilation control
  • Return air management
  • Sensor-driven modulation
  • Energy savings at both full and partial load

Systems that maintain high efficiency year-round—not just during peak cooling—will increasingly lead specifications.

▸ Indoor Air Quality & Comfort Standards

The code isn’t only about cooling anymore. Engineers must now prioritize:

  • More make-up air
  • Improved air filtration and monitoring
  • Optimized airflow for distributed comfort
  • Designs that ensure better air quality in occupied spaces

Comfort and safety go beyond temperature. Climate control and IAQ have become integrated priorities—especially in office, healthcare, and education environments.

▸ Smart Controls and Connected System Management

Digitally enabled commercial HVAC systems now feature:

  • IoT sensors that improve control
  • Data dashboards for operations teams
  • Maintenance notifications for reduced downtime

Connectivity also allows buildings to react dynamically to changing loads and utility pricing—helping business owners save more over time.

Comparing Modern HVAC Systems for Commercial Buildings in 2026

As engineers evaluate future-ready HVAC systems, the challenge is no longer simply “what can meet load today?” It’s “what solution aligns with evolving code expectations and long-term performance requirements?”

Below is a high-level snapshot comparing the technologies most commonly specified in commercial buildings today—and how they perform under 2026 standards:

System Type Strengths Considerations Ideal Applications
Packaged Rooftop Units Easy installation, simplified maintenance, existing rooftop systems and ductwork compatibility Seasonal energy efficiency varies by climate; potential refrigerant transitions Retail, mid-rise offices, facilities needing low total cost entry
VRF / VRV Split Systems Zoning flexibility, optimal comfort, strong part-load efficiency; supports varied loads Higher initial cost; requires trained service teams Mixed-use buildings, hotels, offices with fluctuating occupancy
Heat Pump-Based Commercial HVAC Electrification benefits, reduced reliance on fossil fuels, excellent heating and cooling from a single unit Cold-climate performance varies by configuration Schools, offices, multifamily, buildings pursuing decarbonization
Water-Cooled / Modular Chillers Steady full-load cooling for large facilities; strong lifespan and efficiency Larger footprint, more complex installation and maintenance Hospitals, labs, industrial sites, data centers
DOAS + Hot Gas Reheat Strong ventilation and IAQ performance with humidity control Often paired with additional cooling units Healthcare, higher education, labs

Commercial Packaged Rooftop Units — Still a Smart Choice?

For many commercial buildings, commercial packaged rooftop units (RTUs) remain a trusted default solution thanks to their simplicity, footprint advantages, and easy installation on rooftops already designed for mechanical equipment. By housing all major components in a single cabinet, they reduce coordination complexity and avoid sacrificing valuable indoor space.

Why RTUs Continue to Lead in 2026

RTUs still offer several advantages for mid-sized commercial properties:

  • Broad range of capacity options to match building loads
  • Protects indoor square footage and improves access for service
  • Streamlined duct integration speeds up new construction timelines
  • Low total cost entry, especially for retrofit scenarios
  • Familiar system architecture and readily available parts/support

This makes packaged rooftop solutions a strong fit for retail, education, and mid-rise office environments where standardization and simplicity add business value.

Performance Improvements Engineers Will Rely On

With growing focus on energy efficient operation, newer rooftop units incorporate:

  • More advanced compressors for improved efficiency
  • Hot gas reheat to reduce humidity loads and enhance comfort
  • Direct digital controls supporting optimized airflow and climate control
  • Economizers and dedicated ventilation modes for IAQ and air quality compliance

Systems designed for higher full-load and part-load ratings will be better aligned with 2026 expectations.

VRF and VRV Commercial HVAC — Precision Air Conditioning for Modern Buildings

VRF (Variable Refrigerant Flow) and VRV (Variant Refrigerant Volume) systems have become a top consideration for modern air conditioning strategies—especially in buildings with variable loads, diverse occupancy schedules, and a demand for elevated comfort control.

Rather than moving conditioned air through extensive ducts, VRF systems circulate refrigerant to indoor terminal units, allowing the system to precisely match cooling or heating output to the needs of each zone.

Why VRF Technology Excels Moving Into 2026

VRF supports smarter and more adaptable building performance:

  • Efficient part-load operation delivers noticeable energy savings
  • Zoning and individualized control boost thermal comfort for tenants
  • Flexible routing avoids major construction disruption in renovations
  • Reduced ductwork improves IAQ and reduces leakage risk
  • Heat recovery options can save energy by capturing waste heat for reuse

For commercial office space, mixed-use facilities, and hospitality environments, that adaptability adds both operational and occupant value.

What Engineers Should Consider

While VRF has many strengths, engineers must weigh a few important factors:

  • Higher upfront cost compared to basic commercial hvac alternatives
  • Requires technicians with specialized VRF experience for maintenance and service
  • Refrigerant-based distribution limits use in some high-rise applications
  • Pairing with a DOAS is recommended for ventilation and compliance

VRF delivers unique benefits, but system planning should incorporate ventilation strategy, zoning configuration, and load expectations to ensure strong lifecycle performance.

Heat Pump Technology — A Growing Role in Commercial Heating and Cooling

The rising shift toward building decarbonization is reshaping how engineers think about heating and cooling. The modern heat pump has become a core technology supporting electrification—helping commercial buildings reduce reliance on fossil fuels while improving long-term sustainability outcomes.

Unlike traditional gas-fired systems, heat pumps transfer thermal energy instead of generating it, which significantly improves energy efficiency and can support lower utility spending across seasons.

Why Heat Pumps Matter More in 2026

A heat pump can deliver both efficient cooling and reliable heating from one integrated unit, making it especially attractive during:

  • Electrification initiatives driven by emissions regulations
  • Upgrades to aging boiler-based heating infrastructure
  • Campus and portfolio-level sustainability strategies
  • Projects pursuing LEED, WELL, or other green building certifications

Forward-thinking organizations are already aligning future capital projects with these performance and carbon-reduction advantages.

Expanding Capabilities in Modern Commercial Applications

Newer heat pump configurations now include:

  • Cold-climate performance for northern U.S. regions
  • Enhanced control capabilities supporting smarter climate control
  • Packaged rooftop options that simplify deployment in commercial retrofits
  • Modular scalability for multi-zone spaces

This evolution provides engineers with a stronger foundation for system planning across a wider capacity range.

Large-Scale Cooling with Chillers — The Case for Central HVAC Units

When buildings demand high-capacity, mission-critical temperature control, central HVAC units such as water-cooled or modular chillers continue to set the standard. With the ability to deliver consistent, efficient cooling across large footprints, these systems offer a compelling lifecycle value for hospitals, laboratories, industrial facilities, and data centers.

Chilled-water systems operate with fewer performance swings than some packaged alternatives, maintaining optimized output even under peak load conditions. Their durability and strong operational efficiency make them a proven choice for complex commercial environments.

Why Chillers Remain a Go-To for High-Demand Buildings

  • Superior full-load and part-load energy efficiency
  • Flexible piping distribution for large or multi-building campuses
  • Strong track record of long-term quality and durability
  • Better suited for continuous operations where uptime matters
  • Supports advanced control integration for targeted zones and usage patterns

Even as electrification grows, chillers remain central for buildings requiring consistent performance around the clock.

Improving Indoor Air Quality in Commercial Buildings

The role of indoor air quality (IAQ) in system design has expanded dramatically over the past several years. What was once a comfort-driven consideration is now a performance and compliance requirement for commercial buildings. ASHRAE guidelines, ventilation codes, and owner expectations all demand improved filtration, humidity control, and smarter climate control strategies.

IAQ Requirements Driving 2026 System Choices

Engineers are increasingly tasked with meeting:

  • Higher ventilation rates and make-up air requirements
  • Better filtration and particulate capture through MERV-rated solutions
  • Humidity control systems, including hot gas reheat where needed
  • IAQ monitoring for real-time visibility into building air conditions
  • Smarter zoning to reduce cross-contamination between spaces

Whether designing new systems or upgrading existing ones, IAQ is now a core performance metric.

Technology Advancements Supporting IAQ Goals

Modern systems designed for superior IAQ often include:

  • Integrated controls that balance airflow, pressure, and performance
  • Dedicated outside air systems (DOAS) paired with terminal units
  • Improved access for maintenance, ensuring ongoing compliance
  • Designs that support higher ventilation without sacrificing energy savings

This allows buildings to support better health outcomes, improved comfort, and safety—all while remaining efficient and cost-conscious.

Smart Controls & Climate Control Automation for Long-Term Savings

As buildings become more digitally connected, climate control is advancing from basic thermostatic on-off logic to fully integrated automation. Modern control architectures use sensors, data analytics, and centralized system logic to optimize comfort, energy efficiency, and long-term performance across the entire HVAC ecosystem.

These systems don’t simply respond to temperature—they actively manage airflow, equipment staging, humidity, and ventilation in ways that manual operation could never achieve.

Why Controls Are Essential for 2026 Compliance

Stricter standards around part-load operation and ongoing performance verification require:

  • Real-time monitoring of system conditions
  • Automated adjustments to reduce energy waste
  • Smarter air delivery based on occupancy and zone load
  • Integration with utility demand-response programs

This control intelligence helps buildings maintain efficient operation throughout their lifecycle—not just during commissioning.

Choosing the Right Commercial HVAC System Based on Performance & Cost

Selecting the right commercial HVAC solution for 2026 isn’t only about equipment type — it’s about aligning the system with the long-term goals of the building. Engineers must balance technical requirements, occupant expectations, environmental targets, and operational realities throughout a system’s lifecycle.

Every building presents a unique mix of priorities:

  • Load variability from tenants, equipment, or usage changes
  • Structural considerations like duct routing and rooftop access
  • Future flexibility needs for renovations or added zones
  • Owner priorities around sustainability, comfort, or cost certainty

This means the “best” system is rarely the same across portfolios.

Factors That Influence System Selection

When evaluating options, engineering teams are prioritizing:

  • Energy efficiency and part-load operation for savings in all seasons
  • Ability to integrate with advanced control platforms
  • Ventilation, humidity, and IAQ support for improved air quality
  • Maintenance and service requirements over a 15–20 year lifecycle
  • Resilience and uptime for operational continuity

Systems with better long-term value may require greater upfront investment — a trade-off that becomes essential to evaluate early in planning.

Finding the Best Fit for the Building’s Mission

Some commercial properties require robust durability and performance, such as hospitals or data centers. Others — like retail or mid-rise office buildings — may prioritize low total cost installation and ease of replacement. Schools and higher education facilities often seek top-tier comfort and safety standards while keeping energy budgets under control.

Ultimately, the right solution is the one that best supports:

  • How the building is used today
  • How it may change tomorrow
  • The financial and sustainability goals of the organization

A future-ready system is not just compliant — it’s adaptable.

Plan Confidently for 2026 and Beyond

The ideal HVAC approach isn’t a single technology — it’s the one that meets your building’s mission today and adapts to what tomorrow requires.

Talk with Gil-Bar’s specialists to assess your existing infrastructure, determine the right upgrade or design pathway, and select equipment that meets evolving codes, reduces operating costs, and enhances comfort for every occupant — now and long into the future.

June 17, 2024

HVAC Collective Ambient Releases 2024 Sustainability Report

By: Ambient Enterprises

Ambient Enterprises, the parent of HVAC sales representatives such as Gil-Bar, APA HVAC Technologies, Mechanical Technologies, H.C. Nye, DMG HVAC , and Johnson Barrow shared it’s 2024 sustainability report Thursday through its site.

The report focuses on the company’s environmental responsibility initiatives and highlights its efforts to incorporate sustainable practices nation-wide, while providing comfort and safety to clients. Overall, the HVAC collective aims to create a greener future by advancing sustainability within the wider HVAC industry.

The report also highlights the company’s peer education initiatives on both the East and West Coasts, offering comprehensive learning opportunities for industry professionals.

With the release of the 2024 report, Jenna Prasad, Sustainability Engineer at Ambient, answered a few questions regarding the HVAC group’s sustainability program.

Q&A With Jenna Prasad, Head of Sustainability at Ambient

What is Ambient’s position on sustainability?

Spanning 15 states and two coasts, Ambient and our brand partners are united by the same core value: our people. Our mission is to create a better world for our employees, manufacturers, customers, and communities. In the face of issues like climate change, pollution, and public health challenges, sustainability can’t just be a consideration or an afterthought. Instead, we integrate our commitment to environmental and social responsibility into our operations, business model, and decision-making processes.

How has Ambient’s sustainability program grown over the last year?

The development of our sustainability initiative mirrors the expansion of Ambient itself. Since 2021, our presence, market, and reach have more than doubled, and we’ve transitioned from tracking the carbon footprint of 11 offices and one fleet to that of over 40 offices and seven fleets nationwide. This growth brings challenges, but it also introduces fresh perspectives and new opportunities; our brand partners are equally invested in sustainable design and operations, and they continue to foster the initiative’s growth across all locations.

How does Ambient support customers through sustainable HVAC solutions?

HVAC systems play a significant role in building energy consumption and greenhouse gas emissions– and they’re also vital to health, safety, and comfortability in our homes, schools, hospitals, and workplaces. It’s our job, and that of the entire construction industry, to protect our natural environment while prioritizing the wellbeing of our clients and communities within these spaces. Our customers know this, too, which is why so many of them have committed to the incorporation of emissions reduction and energy management strategies in their projects. We help our clients achieve their sustainability commitments by actively promoting the most cutting-edge, energy-efficient technologies available to the market. But innovative tech isn’t enough. Our true strength lies in our ability to provide expertise through all stages of a project; from initial design to installation, operations, and service, we’re able to support the integration of sustainable principles from start to finish.

How does Ambient support sustainability through peer education?

Part of developing a better future for our communities lies in support and active engagement. One way we do so is by offering comprehensive educational resources to our community members. Through our peer education programs, which operate on both the East and West Coasts, we provide in-person and online learning opportunities for industry professionals across all backgrounds and regions. These programs cover a wide range of industry-relevant topics and are often hosted in partnership with top manufacturers.

May 17, 2024

Stay Cool, Go Green

By Jenna Prasad, Head of Sustainability, Ambient

Summer is almost here, and temperatures are rising across the country. As building owners, property managers, and operators think about turning on the AC, they should prioritize maintenance on their HVAC systems to ensure they’re in top shape for the season. Beyond avoiding a dreaded cooling unit breakdown in the sweltering heat, scheduling maintenance can have many environmental benefits.

 

Optimization for Energy Efficiency

It’s well-known that keeping your HVAC systems at peak performance can help cut costs; the better the system works, the less energy it requires to do its job, resulting in lowered energy bills. Reducing equipment energy consumption due to proper maintenance subsequently decreases greenhouse gas emissions, lightening your carbon footprint.

Emissions Reduction from Refrigerant Leaks

Routine maintenance plays a large role in minimizing greenhouse gas emissions from refrigerant leaks. Through regular leak detection tests and inspections, it’s easy to prevent the damaging impact of refrigerants on the atmosphere.

Water Savings

One of the biggest culprits of water loss in cooling systems is evaporation. As water evaporates, the dirt and bacteria that are left behind need to be drained and replaced with fresh water. Increasing energy efficiency through maintenance can help lessen water waste by decreasing the need to drain and replace concentrated water; reducing thermal energy consumption consequently reduces evaporation.

Increased Equipment Lifespan

Repairs and replacements can be costly and time-consuming. Identifying and addressing minor issues before they develop into major problems can help extend the equipment’s lifespan. Doing so lessens the need for old equipment disposal and new purchases, reducing waste and conserving resources.

 

HVAC systems maintenance not only prevents unplanned repair costs—it also promotes responsible energy use and enhances the well-being of all occupants. Investing in routine maintenance will keep you cool and comfortable this summer, all while helping you achieve your environmental goals.

March 22, 2024

Refrigerant Transition

By Jenna Prasad, Head of Sustainability, Ambient

New York, March 22nd As the construction industry moves towards sustainability, one of the significant changes underway is the transition to low Global Warming Potential (GWP) refrigerants in Heating, Ventilation, and Air Conditioning (HVAC) systems. This shift is driven by environmental concerns and regulatory mandates aiming to phase out high-GWP refrigerants like R-410A and R-134A. The spotlight is now on low-GWP alternatives such as R-454B, which promise a greener future for HVAC systems.


Legislative Background: A Global and National Response

 

The push towards low-GWP refrigerants is rooted in global and national legislative efforts:

  1. 2016 Kigali Amendment to the Montreal Protocol: This global agreement focuses on the phasedown of hydrofluorocarbons (HFCs), potent greenhouse gases often used as refrigerants. HFCs have been linked to significant contributions to global warming, measured by their Global Warming Potential (GWP).
  2. 2020 American Innovation and Manufacturing (AIM) Act: In the United States, this act mandates a phasedown of HFCs by 85% by 2036, aligning with the global initiative to reduce the environmental impact of refrigerants.
  3. 2023 EPA Technology Transitions Program Final Rule: This rule specifically targets the HVAC industry, restricting the use of high-GWP HFCs in air conditioning and heat pump products and equipment. Starting in 2025, the use of refrigerants with a GWP higher than 700 will be banned for certain HVAC systems.


Compliance Timeline for HVAC Systems

 

The transition to low-GWP refrigerants follows a structured timeline, focusing on different types of HVAC systems:

  • Jan 1, 2025: Residential and light commercial air conditioning and heat pump systems, as well as chillers, are affected. New systems using refrigerants with a GWP above 700 can be installed until Jan 1, 2026, as long as all components are manufactured before Jan 1, 2025.
  • Jan 1, 2026: Variable Refrigerant Flow (VRF) systems will need to comply with the new regulations.
  • Jan 1, 2027: Data centers are expected to transition to low-GWP refrigerants.


New vs. Existing HVAC Systems

 

It’s important to note that the Technology Transitions Program applies only to new HVAC systems. Existing systems can continue to use high-GWP refrigerants, although the supply of these refrigerants is rapidly decreasing, and costs are expected to rise due to restricted manufacturing capabilities. However, new high-GWP components needed for repairing existing systems can still be manufactured, sold, and distributed.

Implications for Clients and the Industry

 

As we navigate this transition, it’s crucial for clients and industry professionals to stay informed and proactive:

  • Equipment Purchases: If you’re purchasing equipment for a new system, ensure that you’re aware of the refrigerant being used. Transitioning to low-GWP products will help ensure compliance with new regulations.
  • Timely Orders: For manufacturers still offering R-410A equipment, orders should be placed promptly. Equipment containing R-410A must be manufactured before the end of 2024.

The shift to low-GWP refrigerants represents a significant step towards a more sustainable and environmentally friendly HVAC industry. By staying informed and making strategic decisions, we can collectively contribute to a greener future.

February 21, 2024

Revolutionizing Real Estate: The Compelling Case for Investing in EV Charging Infrastructure

By: Jenna Prasad, Sustainability Engineer, Ambient

 

The shift towards electric vehicles (EVs) is rapidly transforming the transportation landscape, and as a key stakeholder in the build environment, it’s crucial for property owners, consulting engineers, and contractors to recognize and capitalize on the benefits of investing in EV charging infrastructure. Here, we’ll delve into the urgency behind this transition and outline some reasons for property owners and developers to embrace the EV revolution.

 

Transportation Emissions and the Need for Change

 

Transportation, notably cars and trucks, has long been a major contributor to greenhouse gas (GHG) emissions. According to the Inventory of U.S. Greenhouse Gas Emissions, transportation accounted for 29% of total GHG emissions in the U.S. in 2021. Notably, light-duty vehicles were responsible for 58% of this, with medium- and heavy-duty trucks contributing 23% to total transportation emissions. To combat climate change effectively, there’s a critical need for widespread vehicle electrification.

 

 

Why Invest in EV Charging For Your Building?

 

 

Environmental and Health Benefits

  • Contributing to community CO2 reduction efforts.
  • EVs decrease air pollution, fostering cleaner air quality
  • Enhancing overall energy efficiency.

 

Public Commitment to Sustainability

  • Attracting environmentally conscious employees, clients, and tenants.

 

Property Value Enhancement

  • The addition of EV chargers can increase property value.

 

Potential Additional Revenue Stream

  • Charging fees can offset the initial investment in charger technology.

 

Encouraging EV Adoption

  • Employees/tenants are more likely to switch to electric vehicles.
  • Reducing Scope 3 CO2 emissions related to employee commuting.

 

Investment in Sustainable Development

  • Seizing opportunities in the exponentially growing EV market.

 

Leveraging Incentives

  • Utilizing utility rebates, tax credits, and additional funding programs.

 

How Companies are Supporting the Transition

 

Ambient, a national HVAC solutions provider with companies such as Gil-Bar and Mechanical Technologies, recognizes the pivotal role that EV charging plays in nationwide efforts to embrace sustainability. In partnership with ABB E-mobility, Ambient and its companies offer comprehensive EV charging solutions for multifamily residential and commercial projects.

 

So Where Does This Leave Us?

 

Investing in EV charging infrastructure is not just a responsible environmental choice but a strategic business decision for building owners, consulting engineers, and contractors. Beyond aligning with sustainability goals, it enhances property values, attracts eco-conscious stakeholders, and positions businesses at the forefront of a growing market. With the support of companies like Ambient and ABB, supporting EV charging for tenants, employees, and guests becomes a tangible reality for the build environment in New York and beyond.

 

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Ambient Enterprises

January 8, 2024

Construction and Climate Policy, Local to National

By: Jenna Prasad, Sustainability Engineer, Ambient Enterprises

 

As we enter 2024, all eyes turn to policymakers as they intensify commitments to climate action. Municipal, state, and national governments across the U.S. continue to push for decarbonization and energy efficiency in the built industry through increasingly strict regulations. Building owners, contractors, and engineers face a profoundly shifting landscape dictated by the implementation and enforcement of these rulings and therefore must remain proactive as compliance deadlines approach. As businesses prepare to meet these policies head-on, an understanding of current and upcoming climate regulations is crucial to navigating this new era.

In New York City, Local Law 97 stands out as one of the most prominent—and stringent—emissions reduction laws in the country. A subset of the 2019 Climate Mobilization Act, Local Law 97 requires buildings larger than 25,000 square feet to meet new greenhouse gas emissions, aiming to reduce NYC building emissions 40% by 2030 and 80% by 2050. These emissions limits and energy efficiency standards begin in 2024, with even stricter carbon caps slated for implementation starting in 2030. Building owners are responding by implementing energy conservation measures, transitioning to lower-carbon fuels, and undergoing HVAC systems electrification and retrofits.

Alongside NYC’s efforts to reduce building emissions is a push to phase out fossil fuels. Local Law 154, passed in late 2021, sets carbon limits for new constructions and gut renovations, essentially prohibiting the use of fossil fuels. These requirements are enforced starting in 2024 with low-rise buildings and in 2027 for buildings with seven stories or more.

NYC is not the only city making significant strides toward greener buildings. Boston’s Building Energy Reporting and Disclosure Ordinance (BERDO) 2.0, adopted in 2021, established comparable emissions limits, which are enforced beginning in 2025 for buildings larger than 35,000 square feet and in 2030 for buildings exceeding 20,000 square feet. Similarly, Washington D.C. also established a climate goal to reduce greenhouse gas emissions by 50% in 2032, which is upheld by the Building Energy Performance Standard (BEPS) Program introduced in the Clean Energy DC Omnibus Act.

In addition to state laws, environmental efforts are underway on a national scale. One target of national policy is refrigerant, which can contribute heavily to a building’s greenhouse gas emissions through leakages. Introduced in 2020, the American Innovation and Manufacturing (AIM) Act intends to address the use of hydrofluorocarbons (HFCs), which are greenhouse gases with high global warming potentials (GWPs; used to measure the environmental impact of a greenhouse gas in comparison to carbon dioxide) that are commonly used as refrigerants. The EPA (Environmental Protection Agency), authorized by the AIM Act, issued a final rule on the phasedown of these gases, restricting the sale, distribution, import, and export of high-GWP HFCs, including R-410A, one of the most popular refrigerants internationally. Starting in 2025, refrigerant GWP for residential and commercial air conditioners, heat pumps, and chillers must be less than 700. Similar restrictions are in place for variable refrigerant flow (VRF) systems and data centers, with enforcement beginning in 2026 and 2027 respectively. Many manufacturers are already transitioning to more eco-friendly refrigerants, such as R-744 and R-454B, for use in their products.

The most anticipated upcoming regulation facing corporate America is from the Securities and Exchange Commission (SEC). Initially proposed in March 2022, the SEC is in the process of developing a national climate disclosure rule, which will require publicly traded companies to report on annual greenhouse gas emissions and climate-related financial risks. Such a rule is intended both to encourage companies to take emissions-reduction action and to prevent “greenwashing,” or making false claims about sustainability and positive environmental impact. Although it was initially anticipated for October 2023, the final ruling has been delayed; a release in early 2024 is now projected, in which case the requirements will likely go into effect in 2026.

One state, however, is not waiting around for an impending SEC ruling; in September 2023, California legislation passed two climate disclosure bills enforcing emissions and risk reporting for both public and private companies. The first is the Climate Corporate Data Accountability Act, which requires companies doing business in California with revenues of one billion dollars or more to disclose their annual greenhouse gas emissions beginning in 2026. The second law is the Climate-Related Risk Disclosure Act, which requires companies doing business in California with revenues exceeding $500 million dollars to report biennially on climate-related financial risks starting in 2026. Both bills were signed into law in October 2023 by California Governor Gavin Newsom, and although they are still subject to legal challenges, these disclosure regulations indicate a nationwide shift toward actionable climate change mitigation.

Innovation and modernization in the built environment are actively being propelled by legislative developments at all levels of government. These regulations, both current and future, emphasize a shared responsibility to integrate environmental stewardship into the engineering and construction landscapes. If climate action is taken through solutions like electrification, refrigerant management, and carbon footprint reduction, the industry will align itself with a path of resiliency and sustainability in pursuit of a greener future.

 

 

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Ambient Enterprises

December 29, 2023

Ambient Releases 2023 Emissions Update

New York, Dec. 29 Ambient Enterprises, the parent of HVAC sales representatives such as Gil-Bar, APA HVAC Technologies, Mechanical Technologies, H.C. Nye, and recently DMG HVAC and Johnson Barrow, shared it’s 2023 emissions report Friday through its site.

 

“Understanding our environmental impact and driving sustainable change has been a major focus for Ambient in recent years. The 2023 Emissions Update reflects on Ambient’s continued commitment to environmental stewardship and emissions reduction efforts in conjunction with the company’s nationwide growth. The goal of this publicly-available report is to embrace a culture of accountability and transparency within the HVAC community and to encourage others to join Ambient in the collective push toward a greener future.” says Jenna Prasad, Sustainability Engineer at Ambient.

Ambient is a collective of HVAC design and implementation experts, offering solutions for spaces in the healthcare, commercial, and residential sectors.

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Ambient Enterprises

December 7, 2023

Harnessing Earth’s Power: The Rise of Geothermal in Commerical Buildings

By Joe Kalina, Sales Engineer, Gil-Bar Industries

As the world grapples with the consequences of climate change, innovative solutions are emerging to mitigate the environmental impact of traditional HVAC systems. One solution gaining momentum is geothermal heating and cooling. This revolutionary approach taps into the Earth’s natural heat reservoirs, offering a sustainable and efficient alternative to conventional HVAC.

A recent CNN article highlights the increasing adoption of geothermal systems in the heart of New York City, where extreme heat events are becoming more frequent. The city, known for its towering skyscrapers and bustling commercial spaces, is turning to geothermal technology to tackle rising temperatures, reduce its carbon footprint, ease strain on the electrical grid, and meet carbon reduction goals set forth by the Climate Act.

Geothermal systems operate by harnessing the Earth’s internal temperature. Unlike traditional HVAC systems that mainly rely on fossil fuels for heating, geothermal designs have a greener, lower-carbon-emitting approach. Geothermal systems operate by utilizing the Earth’s consistent internal temperature to transfer or extract heat from the ground. This translates to a substantial reduction in energy needed to move heat from one source to another, ultimately leading to more a sustainable infrastructure. By stabilizing the source where the heat is pulled from, we can optimize the mechanical systems doing the work. Although the initial installation may seem like a more involved process compared to traditional HVAC, the long-term savings are substantial. These systems also boast lower operational and maintenance costs, making them a wise investment for organizations looking to cut utility expenses over the life span of the building. With geothermal systems providing lower environmental strain and lower costs for building owners, it’s really no surprise that we’ve seen the increase in adoption that we have over recent years.

The cost savings and sustainability aspects of geothermal have also led to advancements in the technology itself and are contributing to its widespread adoption. Enhanced drilling techniques, improved heat exchangers, and smarter control systems are making these systems more accessible and efficient. In turn, commercial buildings are increasingly turning to this solution to meet their needs.

While geothermal may present a promising future, there are challenges that still exist. The availability of suitable underground conditions and upfront installation costs can be barriers for some businesses. That won’t be for long though. Government incentives and a growing awareness of the long-term benefits are creating opportunities for expansion of these types of systems in the commercial setting.

Geothermal represents a beacon of hope in the quest for sustainable, environmentally friendly, and profitable solutions in a world of growing regulation. New York City’s adoption of geothermal technology at 1 Java Street only underscores its potential to address the dual challenges of extreme weather and carbon emissions. As technology continues to advance and awareness grows, we’re likely to see it become a cornerstone of the green building revolution, ushering in a new era of energy-efficient and eco-friendly commercial spaces.

October 2, 2023

Decarbonization & Electrification: The Way to a Greener Future

HVAC Experts Break Down What You Need To Know

By: Amir Goharpey, Application Engineer, Gil-Bar Solutions

Decarbonization, a term often heard in the context of sustainability and climate action, represents a critical step towards reducing our carbon footprint and mitigating climate change. In the realm of heating, ventilation, and air conditioning (HVAC), decarbonization entails a strategic shift towards cleaner, more efficient technologies and practices. Here, we’ll discuss what decarbonization is and three key strategies for achieving it, with a particular focus on electrification as a driving force for positive change.

Understanding Decarbonization

At its core, decarbonization is the process of reducing or eliminating carbon dioxide emissions from various processes. In the HVAC world, this is a concerted effort to minimize the carbon footprint of buildings and encompasses four fundamental components:

  1. Energy Efficiency: This involves making units and buildings as energy-efficient as possible, ensuring that minimal energy input yields the maximum heating or cooling output. Besides environmental benefits, increased energy efficiency also reduces buildings’ energy bills, making it a win-win strategy.
  2. Electrification: Electrification is the strategy to replace existing equipment that relies on fossil fuels with the latest electric technology. This transition not only reduces carbon emissions but also aligns with the broader movement towards cleaner energy sources.
  3. Renewable Energy: Building all-electric systems and utilizing renewable energy sources to generate electricity play a pivotal role in decarbonization. By reducing reliance on fossil fuels for electricity generation, we can significantly lower carbon emissions.
  4. Electricity Loads: While essential, electricity load management falls just beyond the scope of what we are discussing here, but remains a crucial element of the overall decarbonization strategy.

The Significance of Decarbonization

Why is decarbonization so important? Simply put, it is a linchpin in our efforts to combat climate change and achieve reduction goals. The Climate and Community Protection Act, for instance, commits New York State to reduce greenhouse gas emissions by 40% by 2030 and a staggering 85% by 2050. To achieve these ambitious targets, an aggressive plan has been set in motion. Air Source Heat Pumps (ASHP), for example, have emerged as a viable solution, not only for meeting climate goals but also for surpassing the environmental performance of traditional DX and gas heating options.

Strategies for Combating Decarbonization

To effectively combat carbon emissions, HVAC professionals and policymakers must consider three main strategies:

  1. Energy Efficiency: Although energy efficiency has long been a priority in HVAC, its focus has often centered on cost savings rather than improving the carbon footprint. However, reduced energy consumption directly translates into fewer emissions from fuel use, making it a vital component.
  2. Refrigerant Management: Managing refrigerants is a critical aspect of reducing unwanted emissions from buildings. Employing low Global Warming Potential (GWP) refrigerants is essential to minimize environmental impact. Regular maintenance practices can also help prevent refrigerant leakage.
  3. Electrification: Electrification, especially in heating, is gaining prominence as we move away from gas heaters and inefficient electric heating methods. The shift towards cleaner electric grids, with an emphasis on renewable energy sources, is a cornerstone of electrification efforts.

Electrified Heating Solutions

One of the key drivers of electrification in the HVAC industry is the adoption of electric heating solutions, particularly heat pumps. These solutions include:

  • Air to Air Heat Pumps: These systems, includingsplit system heat pumps, rooftop unit (RTU) heat pumps, and variable refrigerant flow (VRF) heat pumps, efficiently provide both heating and cooling, reducing the need for fossil fuels.
  • Heat Recovery Solutions: Heat recovery systems, such as heat recovery chillersand multi-pipe systems maximize energy efficiency by capturing and repurposing waste heat, further contributing to the decarbonization movement.

So where does this leave us? We know decarbonization and electrification are intertwined as essential components of our journey towards a greener, more sustainable future. By embracing energy efficiency, responsible refrigerant management, and electrified heating solutions, we can not only meet reduction goals but also take significant strides in combatting climate change and preserving the environment for future generations.

Amir Goharpey is an application engineer with Gil-Bar Solutions, a division of the Ambient HVAC Collective.