Massachusetts businesses may be able to lower the cost of a commercial HVAC upgrade with Mass Save incentives. In 2026, qualifying air-source heat pumps can receive $2,000 per ton, while qualifying VRF heat pumps can receive $2,800 per ton.
But there is an important rule: As of July 1, 2026, commercial heat pump projects must receive pre-approval before installing equipment. Your final incentive depends on your equipment, building, existing heating system, utility service, and other program rules.
At Harold Brothers Mechanical, we help commercial building owners and facility managers throughout Massachusetts plan HVAC projects. Part of that process is looking at available incentives before equipment is selected and installed.
Here are some of the main 2026 Mass Save commercial HVAC incentives:
|
HVAC upgrade |
2026 incentive |
|
Air-source heat pump |
$2,000 per ton |
|
VRF heat pump |
$2,800 per ton |
|
Energy Recovery Ventilator (ERV) |
$1.50 per CFM |
|
Heat Recovery Ventilator (HRV) |
$1.00 per CFM |
These are published incentive rates, not guaranteed rebate amounts. Always confirm your project's eligibility before you buy or install equipment.
That means a qualifying 10-ton system could have a potential incentive of:
10 tons × $2,000 = $20,000
A heat pump can both heat and cool a building. Instead of burning fuel to create heat, it moves heat into or out of the building.
Not every heat pump qualifies. Mass Save requires eligible equipment to appear on its Heat Pump Qualified Product List. The equipment must also meet rules based on the heating system it will replace or support and the building's utility service.
Do not choose a heat pump based on the rebate amount alone. Confirm that your project and equipment qualify first.
A qualifying commercial Variable Refrigerant Flow, or VRF, heat pump can receive $2,800 per ton in 2026.
For example:
10 tons × $2,800 = $28,000
VRF systems can heat and cool different areas of a building separately. This can make them useful for offices, schools, stores, and other buildings with different comfort needs in different rooms.
Like other heat pumps, the equipment and project must meet Mass Save rules.
A larger rebate does not always mean VRF is the right system for your building. Your contractor should consider the building, heating needs, installation costs, and available incentives before recommending equipment.
For projects of 35 tons or less, you must get a Rebate Commitment Letter before installation. Mass Save says this letter is valid for four months.
Projects over 35 tons go through a custom project process. These projects require an application and pre-approval from the appropriate Mass Save Sponsor. They must also meet added requirements.
This makes the order of your project very important.
Confirm your incentive before installation begins. Installing equipment first could put your rebate at risk.
Mass Save also offers incentives for qualifying ventilation equipment.
An Energy Recovery Ventilator (ERV) brings outdoor air into a building while recovering heat and moisture from outgoing air.
A Heat Recovery Ventilator (HRV) performs a similar job but does not recover moisture.
If your building has stale or stuffy areas, understanding why commercial HVAC systems can have ventilation problems can help you determine whether ventilation upgrades should be part of your project.
For qualifying equipment, Mass Save lists:
CFM means cubic feet per minute and measures airflow.
Pre-approval rules can vary by Mass Save Program Sponsor and project size. Equipment must also meet minimum efficiency rules.
Yes. Some projects that do not fit a standard rebate may qualify for a custom incentive.
This is often important for larger or more complex buildings. Custom projects may require more information about project cost and expected energy savings.
Mass Save also offers Focused Studies for some businesses looking at specific energy upgrades.
For qualifying projects, Mass Save currently lists first-tier heat pump incentive rates of:
The first tier covers the first 300 tons of eligible capacity. Rates may change for larger projects. Mass Save also limits total incentives to $3 million per project.
Mass Save has discontinued incentives for fossil-fuel equipment in qualifying new construction projects.
If you are building a new facility or completing a major renovation, do not assume the existing-building rebate applies.
The best time to think about rebates is before you install equipment.
The basic process is:
Mass Save may inspect the completed installation before paying the incentive.
Your exact process can vary, so confirm the requirements for your project before work begins.
You may find other tax benefits or incentive programs that could affect the cost of your HVAC project.
However, do not add different incentives together and assume that is what you will save.
Program rules, deadlines, and eligibility requirements can be different. Federal tax rules can also change.
Talk with your HVAC contractor, tax professional, and Mass Save Sponsor before including these savings in your project budget.
Commercial HVAC rebates can make a major difference in project cost. A qualifying 10-ton air-source heat pump, for example, could have a potential $20,000 Mass Save incentive based on the current published rate.
But the rebate should be part of your planning process, not something you check after installation.
Now you know the major 2026 rates, the importance of pre-approval, and why your building and equipment must be checked for eligibility.
Your next step is to understand which energy-efficiency upgrades can have the biggest impact on your building and HVAC system. Read our “2026 Guide to Commercial HVAC Energy Efficiency Upgrades” to learn which upgrades to consider and how they can factor into your HVAC project planning.