Massachusetts HVAC Rebates & Incentives (2026)

What's on the table in 2026 (the short version)

• Mass Save whole-home heat pump rebate: $2,650/ton, capped at $8,500 per home — down from $3,000/ton in 2025.
• Mass Save partial-home rebate: $1,125/ton, capped at $8,500.
• New Basic rebate tier: $250/ton, capped at $2,500 — for heat pump replacement or small unconditioned spaces.
• New England Heat Pump Accelerator: up to $750 per unit, discounted on your invoice at the point of sale. Stacks with Mass Save.
• HEAT Loan: 0% APR up to $25,000, term length tiered by income (84/60/36 months).
• IRA-funded HEAR rebates: up to $8,000/household for income-qualified heat pump installs (≤80% AMI) — separate from Mass Save and from the expired federal credits.
• Seasonal Heat Pump Rate: a reduced winter electric rate from November 1 to April 30. Not a rebate — an ongoing bill discount, usually applied automatically.
• R-410A heat pumps: removed from the Mass Save HPQPL as of January 1, 2026 — new installs use R-32 or R-454B.
• Federal Section 25C ($2,000) and 25D (30% geothermal) tax credits: ended December 31, 2025 and have not been reinstated.

Need to act on this? Use the rebate calculator to estimate your number, check which sponsor utility serves your city, or jump to the incentives changelog for the dated record of every program change since 2025.

2026 rebate amounts at a glance

The HVAC rebates available to Massachusetts homeowners in 2026, in one table. Every figure below is the current-year (2026) program amount, verified 2026-09-19 against Mass Save and IRS primary sources:

Compared with 2025, the headline change for 2026 is the whole-home per-ton rate dropping from $3,000 to $2,650 (the $8,500 cap is unchanged), the new Basic tier, the January 1, 2026 R-410A refrigerant cutoff, and the expiration of the federal 25C/25D credits. Full per-tier detail with sources is below.

Two of the rows above are not Mass Save programs and are easy to miss because nobody mails you a form for either one: the Accelerator discount arrives through your contractor's equipment supplier, and the Heat Pump Rate arrives on your electric bill. Both are covered in their own sections below.

Massachusetts incentives

The 2026 Mass Save Rebate Tiers

Verified 2026-09-19

Most homes

Whole-Home Heat Pump Rebate

$2,650 /ton

Capped at $8,500 per home

The installed heat pump must be the sole source of heating and cooling for the spaces served. Equipment must be ENERGY STAR Cold Climate certified and listed on the Mass Save Heat Pump Qualified Products List (HPQPL). A Manual J load calculation is needed to qualify for the sizing bonus and is industry-standard practice on Mass Save projects.

Partial-Home / Supplemental Heat Pump Rebate

$1,125 /ton

Capped at $8,500 per home

Heat pump installed alongside an existing primary heating system. Equipment must be on the HPQPL. Lower per-ton rebate reflects supplemental rather than sole-source use.

Basic Heat Pump Rebate

$250 /ton

Capped at $2,500 per home

New for 2026. Applies to replacing an existing heat pump with a new qualified HPQPL-listed heat pump, or conditioning a previously unconditioned space.

+

$500 Right-Sized Equipment Bonus Partial-home

Partial-home installs only. Equipment must be sized to meet 90–120% of the total heating load at the outdoor design temperature, documented via an ACCA Manual J load calculation submitted with the rebate application.

+

$500 Weatherization Bonus Partial-home

Partial-home installs only. Requires a Mass Save Home Energy Assessment plus installation of the recommended weatherization (typically air sealing and insulation) within one year prior to or up to six months after the heat pump installation.

Financing

Mass Save HEAT Loan

0% APR up to $25,000

• Below 135% of State Median Income: 7 years (84 months)
• 135%–300% of State Median Income: 5 years (60 months)
• Over 300% of State Median Income: 3 years (36 months)

Subject to bank underwriting through participating Massachusetts lenders. Covers equipment + installation costs for qualifying high-efficiency upgrades (heat pumps, ductless mini-splits, insulation, water heaters, and batteries enrolled in ConnectedSolutions). A Home Energy Assessment is mandatory before financing a whole-home heat pump. Households below approximately 81% SMI typically route to Mass Save's no-cost / enhanced-rebate programs rather than the HEAT Loan.

No federal heat pump tax credit applies in 2026.

• Section 25C Energy Efficient Home Improvement Credit (heat pump portion) (30% of cost up to $2,000 annually for qualifying heat pump installations (inflation reduction act expansion)) ended for property placed in service after 2025-12-31 under the One Big Beautiful Bill Act (P.L. 119-21).
• Section 25D Residential Clean Energy Credit (geothermal portion) (30% of installed cost for ground-source (geothermal) heat pumps, with no dollar cap) ended for property placed in service after 2025-12-31 under the One Big Beautiful Bill Act (P.L. 119-21).

Status as of 2026-09-19: neither 25C nor 25D has been reinstated or replaced by Congress. Pending bills (e.g. H.R. 616) have not advanced. Pre-2026 §25D installs may carry forward unused credits.

Rebate amounts and eligibility verified 2026-09-19 against primary program documentation. We re-check before any publish.

Get a quote using these rates

Primary source

“Whole-home heat pump rebates: $2,650 per ton, up to $8,500 per home. Eligible projects must use a heat pump as the sole source of heating and cooling for the spaces served and must be on the Heat Pump Qualified Products List.”

Full rebate tier detail — air-source heat pumps

Whole-Home Heat Pump Rebate

$2,650/ton

Capped at $8,500 per home

The installed heat pump must be the sole source of heating and cooling for the spaces served. Equipment must be ENERGY STAR Cold Climate certified and listed on the Mass Save Heat Pump Qualified Products List (HPQPL). A Manual J load calculation is needed to qualify for the sizing bonus and is industry-standard practice on Mass Save projects.

Down from $3,000/ton in 2025; further reduction (~$2,500/ton) projected for 2027 based on the Three-Year Plan filing.

Source: Mass Save · As of 2026-09-19

Partial-Home / Supplemental Heat Pump Rebate

$1,125/ton

Capped at $8,500 per home

Heat pump installed alongside an existing primary heating system. Equipment must be on the HPQPL. Lower per-ton rebate reflects supplemental rather than sole-source use.

Source: Mass Save · As of 2026-09-19

Basic Heat Pump Rebate

$250/ton

Capped at $2,500 per home

New for 2026. Applies to replacing an existing heat pump with a new qualified HPQPL-listed heat pump, or conditioning a previously unconditioned space.

Source: Mass Save · As of 2026-09-19

Ground-source (geothermal) heat pump rebate tiers

Mass Save administers ground-source (geothermal) heat pump rebates separately from air-source — with a higher cap reflecting the higher installed cost and lifetime efficiency advantage of GSHP. These tiers apply when the heat pump's loop field is buried in the ground (horizontal, vertical-bore, or pond) rather than exchanging heat with outdoor air.

Mass Save Whole-Home Ground-Source (Geothermal) Heat Pump Rebate

$13,500 flat

Single per-home rebate (not per-ton)

Whole-home ground-source heat pump systems that serve as the sole source of heating and cooling for the conditioned space. Equipment must be on the Mass Save HPQPL and installation must be by an HPIN-enrolled installer.

Higher cap than the air-source $8,500 whole-home tier, reflecting the higher installed cost and operating-efficiency advantage of GSHP. Loop installation and drilling are part of the qualifying scope.

Source: Mass Save · As of 2026-09-19

Mass Save Partial-Home Ground-Source (Geothermal) Heat Pump Rebate

$2,000/ton

Capped at $13,500 per home

Partial-home GSHP installs (supplements an existing primary heating system rather than replacing it). Tonnage is calculated from AHRI cooling capacity divided by 12,000 BTUs.

Same $13,500 cap as the whole-home GSHP tier; per-ton scaling applies until the cap is reached.

Source: Mass Save · As of 2026-09-19

Stackable bonuses

Both bonuses below stack with the partial-home heat pump rebate. The sizing bonus requires a Manual J load calculation — read our Manual J explainer to understand the 90–120% load-band rule that determines eligibility.

• $500 Right-Sized Equipment Bonus. Partial-home installs only. Equipment must be sized to meet 90–120% of the total heating load at the outdoor design temperature, documented via an ACCA Manual J load calculation submitted with the rebate application.
• $500 Weatherization Bonus. Partial-home installs only. Requires a Mass Save Home Energy Assessment plus installation of the recommended weatherization (typically air sealing and insulation) within one year prior to or up to six months after the heat pump installation.

The two dates that decide whether you actually get paid

Mass Save runs on a calendar program year, and it has two separate deadlines that homeowners routinely collapse into one. Missing the second is the most common way a fully-eligible project ends up with no rebate.

• Install by December 31, 2026. The equipment has to be installed inside the program year — 2026-01-01 through 2026-12-31. An install that slips into January is a 2027 project, at 2027 rates.
• Paperwork received by February 28, 2027. Not postmarked — received, with all supporting documentation. This is the one people miss.

If you are reading this in the autumn, the practical consequence is scheduling. A whole-home rebate requires a Home Energy Assessment first, assessments run a multi-week lead time in the pre-winter rush, and the whole-home tier additionally requires the weatherization condition to be satisfied. Starting a whole-home project in late November and expecting it finished and filed inside the program year is optimistic.

The equivalent deadline for 2025 installs was 2026-02-28 and has passed — a 2025 install can no longer be claimed. Source: Mass Save air-source heat pump program page, eligibility tab. Verified 2026-09-19.

The instant discount nobody tells you about: the Heat Pump Accelerator

Every other incentive on this page is something you claim. The New England Heat Pump Accelerator instant discount is different: it is worth up to $750 per qualifying unit and you never fill in anything. Midstream. The Accelerator pays enrolled distributors, the distributor discounts the equipment to your contractor, and the contractor shows the savings as a line item on your invoice. There is no homeowner application form.

Stacks with Mass Save rebates and the HEAT Loan — it reduces equipment cost rather than rebating it, so it does not consume any Mass Save cap. If you also want the Mass Save rebate, your contractor still has to be in the Heat Pump Installer Network (HPIN).

The catch is structural. Because the money moves through the supply chain rather than through you, it only exists if your contractor happens to buy from an enrolled distributor. Two installers quoting the same equipment can differ by several hundred dollars per unit for no reason you can see on the proposal. So:

Ask the contractor, before signing: "are you buying this equipment from a NEHPA-enrolled distributor, and will the Accelerator discount appear on my invoice?" Contractors who are not enrolled simply will not have it.

Note that this is not a Mass Save program — New England Heat Pump Accelerator (regional; CT, MA, NH, RI — Efficiency Maine administers ME) administers it, and Mass Save's own rebate page carries a disclaimer to that effect. It does not replace the requirement to use a Mass Save HPIN-enrolled contractor if you also want the Mass Save rebate. Eligibility: Existing homes in Massachusetts. The equipment must be on the Accelerator Qualified Products List AND purchased by your contractor from a distributor enrolled in the program. Applies to heat pumps and heat pump water heaters.

Source: New England Heat Pump Accelerator · Verified 2026-09-19

The Seasonal Heat Pump Rate — a discount on the bill, not on the install

Rebates cut what you pay the installer once. The Massachusetts Seasonal Heat Pump Rate, which took effect 2025-11-01, cuts what you pay the utility every winter for as long as you live there. A reduced electric distribution rate (Eversource also reduces transmission) applied to all household electricity use from November 1 through April 30. From May through October, enrolled customers pay the standard residential rate.

What the sponsors report their enrolled customers saving:

• Eversource: about $430 over the winter season, roughly $72/month.
• National Grid: $70–$141/month November–April on R-1; $20–$96/month on the R-2 income-eligible rate.
• Unitil: $82–$166/month November–April; $49–$99/month for income-eligible customers.

You probably do not have to do anything. Customers who received a Mass Save heat pump rebate on their electric account for a system installed after January 1, 2019 are enrolled automatically and notified. National Grid adds customers once the rebate is fully processed and paid, which takes 6–8 weeks — and customers who took the $250/ton Basic rebate must apply rather than wait. New-construction and renovation-program installs must apply at every sponsor.

Anyone else with a heat pump used for space heating can apply with proof of purchase, a contractor invoice, a Mass Save rebate confirmation, a photo of the outdoor unit showing model and serial, or a MassCEC-approved application. Renters with their own residential electric account, solar and net-metering customers, municipal-aggregation and third-party-supply customers, and income-eligible customers (via the R-2 heat pump variant) all qualify.

Electric resistance heat (baseboards, space heaters, electric furnaces) does not qualify. Neither does a heat pump used only for cooling, nor a heat pump water heater on its own. Commercial accounts are excluded. Only Eversource, National Grid, Unitil run the rate — Cape Light Compact customers and municipal light plant customers do not get it and should not budget for a winter discount. The rate follows the premise, not the customer, and is not retroactive before November 1, 2025. Unitil asks for a one-year commitment. Opting out is possible at every sponsor.

Full detail, including what it does to a real annual heating bill: the Massachusetts Heat Pump Rate guide.

Source: Mass Save Heat Pump Rate FAQ, plus the Eversource, National Grid and Unitil tariff pages · Verified 2026-09-19

The Mass Save HEAT Loan (now SMI-tiered)

The Mass Save HEAT Loan offers 0% APR financing up to $25,000. As of January 1, 2025, the term length is tiered by State Median Income (SMI):

• Below 135% of State Median Income: 7 years (84 months)
• 135%–300% of State Median Income: 5 years (60 months)
• Over 300% of State Median Income: 3 years (36 months)

Subject to bank underwriting through participating Massachusetts lenders. Covers equipment + installation costs for qualifying high-efficiency upgrades (heat pumps, ductless mini-splits, insulation, water heaters, and batteries enrolled in ConnectedSolutions). A Home Energy Assessment is mandatory before financing a whole-home heat pump. Households below approximately 81% SMI typically route to Mass Save's no-cost / enhanced-rebate programs rather than the HEAT Loan. The full HEAT Loan guide covers underwriting, monthly payment math on a typical install, and how the program differs from the parallel MLP Zero-Interest Loan for residents of Municipal Light Plant communities.

Enhanced rebates for income-qualified households

Households below approximately 135% of State Median Income (SMI) qualify for materially higher rebate caps and, below 60% SMI, for no-cost turnkey installation. These programs replace — not stack on top of — the standard $8,500 cap. The full pathway breakdown — Enhanced, HEAR, and Turnkey, and how they stack — lives in the income-qualified heat pump guide; also confirm your eligibility with the Mass Save eligibility guide.

• Enhanced Air Source Heat Pump (Whole-Home): up to $16,000. Households between approximately 60% and 135% of State Median Income (SMI) on the moderate-income track. Replaces the standard $8,500 cap with up to $16,000 for whole-home air-source heat pump systems. Pre-existing heating fuel must be oil, propane, or electric resistance. Cape Light Compact is the exception to the dollar cap — Compact customers are eligible for 80% of the installed cost instead of a fixed maximum. Mass Save reference.
• Enhanced Ground Source (Geothermal) Heat Pump: up to $25,000. Households between approximately 60% and 135% of SMI on the moderate-income track. Customer account limit: maximum $25,000 across all enhanced incentive offerings. Replaces the standard heat pump rebate caps with up to $25,000 for ground-source (geothermal) systems. Mass Save reference.
• No-Cost Turnkey Heat Pump Program. Households at or below 60% of State Median Income. Eligible households can receive no-cost project management, contractor oversight, and equipment installation — Mass Save effectively covers the install end-to-end. Apply through the Income Eligible Programs portal. Mass Save reference.

IRA-funded rebates (HEAR + HOMES) — still active

The federal Inflation Reduction Act rebate programs are separate from the expired tax credits and are still flowing. Massachusetts received approximately $145.9 million in IRA rebate funding ($72.8M HEAR + $73.2M HOMES). Because these are appropriations, not tax credits, they were not affected by the One Big Beautiful Bill Act. Both stack with standard Mass Save rebates. The HEAR program deep-dive walks through eligibility, stacking math, and the application sequence.

• HEAR (Home Electrification & Appliance Rebates) — Heat Pump — up to $8,000 USD per household (federal program design; actual MA delivery routes through Mass Save income-eligible programs). Households at or below 80% of Area Median Income (AMI). Massachusetts has NOT launched HEAR as a standalone consumer rebate — Mass Save's own IRA FAQ (re-verified 2026-09-19) still states that DOER and the Mass Save sponsors are integrating HEAR funding into existing no-cost / enhanced income-eligible offerings rather than running it as a separately-claimable $8,000 rebate. Eligible households should apply through the Mass Save income-eligible pathway after completing a Home Energy Assessment. Funded by federal Inflation Reduction Act appropriations (not the expired 25C tax credit, which OBBBA terminated). HEAR funds survive OBBBA because they are appropriations, not tax credits. The $8,000 figure reflects the federal program cap; in Massachusetts the practical benefit typically arrives as a higher-cap Mass Save income-eligible offering (Enhanced ASHP up to $16,000 / Enhanced GSHP up to $25,000) rather than as a separate $8,000 stacked on top of standard rebates. MA received ~$71.8M in HEAR allocations; DOER administers and continues to develop the integration framework. Mass Save IRA page.
• HOMES (Home Efficiency Rebates) — whole-home retrofit — up to $8,000 USD per household (varies by modeled energy savings and income tier). Open to all Massachusetts households; deeper rebates for those below 80% AMI. Delivered through the Mass Save Deep Energy Retrofit pathway. Requires modeled or measured energy-savings verification. IRA-funded appropriation; survives the OBBBA changes. Less directly relevant to standalone heat pump installs, more relevant to deep-retrofit projects that include weatherization + electrification together. Mass Save IRA page.

HEAR runs through the Mass Save income-eligible pathway via MassCEC; HOMES runs through the Mass Save Deep Energy Retrofit pathway. A Mass Save Home Energy Assessment (4–6 week lead time) is required first in both cases.

Federal tax credits: a settled history

The federal §25C Energy Efficient Home Improvement Credit (up to $2,000 for heat pumps) and §25D Residential Clean Energy Credit (30% for ground-source heat pumps, no cap) both ended for property placed in service after December 31, 2025. Both had been extended through 2032 under the Inflation Reduction Act before the One Big Beautiful Bill Act (P.L. 119-21, signed July 4, 2025) terminated them early.

As of 2026-09-19, neither credit has been reinstated, extended, or replaced. Pending bills — notably H.R. 616 (which would raise the 25C cap to $4,000) — have not advanced out of committee. Massachusetts has not created a state-level bridge credit. If a competing site is still advertising these credits as available, that information is out of date.

• Section 25C Energy Efficient Home Improvement Credit (heat pump portion). 30% of cost up to $2,000 annually for qualifying heat pump installations (Inflation Reduction Act expansion). Repealed early by the One Big Beautiful Bill Act (Public Law 119-21, 139 Stat. 72, July 4, 2025). The credit had been scheduled to run through 2032 under the IRA; it terminates for property placed in service after December 31, 2025. No credit allowed for property placed in service after December 31, 2025. IRS reference.
• Section 25D Residential Clean Energy Credit (geothermal portion). 30% of installed cost for ground-source (geothermal) heat pumps, with no dollar cap. Also terminated early by the One Big Beautiful Bill Act for expenditures made after December 31, 2025. No credit allowed for expenditures made after December 31, 2025 (where expenditures are treated as made when the original installation is completed). Pre-2026 installs may carry forward unused credits into later tax years. IRS reference.

Refrigerant rules for 2026 installs

Effective January 1, 2026, EPA rules prohibit installation of new residential and light-commercial heat pump systems using refrigerants with GWPs greater than 700. R-410A units were removed from the Mass Save Heat Pump Qualified Products List on that date. New rebate-qualifying installations must use R-32 or R-454B refrigerant.

Exceptions to the January 1, 2026 R-410A cutoff:

• Variable refrigerant flow (VRF) systems: R-410A permitted through January 1, 2027.
• Factory-charged self-contained products (e.g., window units, packaged terminal heat pumps): R-410A permitted through January 1, 2028.

Mass Save HPQPL reference.

Mass Save sponsors (six total)

Use the Mass Save sponsors directory to look up the electric and gas sponsor for your specific Massachusetts city. The six sponsors are:

• Eversource — electric + gas (post-Columbia)
• National Grid — electric + gas
• Unitil — electric + gas (north-central MA)
• Cape Light Compact — electric (Cape Cod & Martha's Vineyard)
• Berkshire Gas — gas (western MA)
• Liberty Utilities — gas (Fall River and parts of southeast MA — Bellingham, Blackstone, North Attleboro, Plainville, Somerset, Swansea, Westport, Wrentham)

Customers of Municipal Light Plants (MLPs) — including Belmont, Braintree, Reading, Wakefield, Concord, Hingham, Holyoke, Mansfield, Marblehead, Middleborough, Norwood, Peabody, Shrewsbury, Taunton, Wellesley, Westfield, and roughly 25 others — do not participate in Mass Save. They rely on their own MLP rebate program (e.g. BELD Heat Pump Rebate up to $3,000 in Braintree). See the MLP section in the sponsors directory for the full roster.

MLP residents have a parallel zero-interest loan

Because MLP residents cannot access the Mass Save HEAT Loan, the Commonwealth offers the Massachusetts MLP Zero-Interest Energy Efficiency Loan: 0% APR financing up to $25,000 for qualifying energy efficiency upgrades, including heat pumps. DPU-approved zero-interest loan up to $25,000 for qualifying energy efficiency upgrades, including heat pumps. Apply through your local MLP. This is the MLP equivalent of the Mass Save HEAT Loan, not a stacking option. Mass.gov reference.

All rebate figures on this page were verified 2026-09-19 against the primary sources cited. Mass Save program rates have changed annually for the past three years; we re-verify before any refresh. See the incentives changelog for the full dated record of every rate change, federal credit expiration, and refrigerant cutoff we've tracked since 2025.

Where the rebate stack actually differs by city

The dollar amounts on this page are statewide — Mass Save sets one schedule for all six sponsors. What changes street to street is everything around the money: which utility processes your claim, whether a historic district review sits between you and an outdoor unit, what the local noise ordinance allows at a lot line, and how dense the HPIN installer bench is. Two examples from the metro cluster we cover most closely:

• Cambridge is Eversource for both electric and gas, so one sponsor handles the whole claim — but a Historical Commission Certificate of Appropriateness and a strict noise ordinance shape where the condenser can physically go, which in turn shapes the sizing the rebate is calculated from.
• Newton splits: Eversource electric, National Grid gas. The heat pump rebate files through the electric sponsor. Newton's larger housing stock also routinely prices above the $8,500 whole-home cap, which is exactly the gap the 0% HEAT Loan is there to close.

Claiming these rebates in Cambridge and Newton

• Mass Save Contractors in Cambridge, MAFinding a Mass Save contractor in Cambridge comes down to verifying two credentials: a Massachusetts Refrigeration Technician license and Mass Save Heat Pu
• Ductless Mini-Splits in Newton, MADuctless mini-split installation in Newton runs $4,000–$9,000 per zone; whole-home cold-climate systems qualify for Mass Save rebates of up to $8,500 in 20

Use rebates against a specific HVAC service

• Air Conditioner Installation in MassachusettsAir conditioner installation in Massachusetts typically runs $5,000 to $15,000 depending on system type and home size, with heat pumps and ductless mini-sp
• Ductless Heating & Cooling Units in MassachusettsDuctless heating and cooling units — also called mini-split heat pumps — typically cost $4,000 to $9,000 per zone installed in Massachusetts and qualify fo
• Geothermal Heating & Cooling in MassachusettsGeothermal heating and cooling in Massachusetts costs $30,000 to $60,000 for a typical residential install, with Mass Save geothermal rebates available; th
• Midea Air Conditioner Installation in MassachusettsMidea air conditioner installation in Massachusetts typically runs $4,500 to $10,000 for a single-zone ductless system; cold-climate Midea heat pump models
• AC Installation Near Me (Massachusetts)Searching for AC installation near you in Massachusetts means choosing between standard central AC ($5,000–$12,000) and rebate-eligible heat pump systems (

Deeper guides on Massachusetts incentives

• Mass Save Contractors in MassachusettsHow to find and verify a Mass Save-qualified HVAC contractor in Massachusetts: HPIN enrollment, the Refrigeration Technician license, and the checks that protect your $8,500 rebate.
• Mass Save Eligibility Guide (2026)Most Massachusetts residential electric or gas customers of Eversource, National Grid, Unitil, Cape Light Compact, Berkshire Gas, or Liberty Utilities are
• Manual J Load Calculation in MassachusettsManual J is the ACCA-standard residential heating and cooling load calculation. For Mass Save whole-home heat pump rebates (up to $8,500 in 2026), a Manual
• How to Vet HVAC Installation Companies in MassachusettsHow to vet HVAC installation companies in Massachusetts: verify state Refrigeration Technician licensing, confirm Mass Save HPIN enrollment for heat-pump r
• HVAC Repair vs Replace in MassachusettsThe 50% rule, the R-410A refrigerant squeeze, and when a Mass Save rebate-eligible replacement beats another repair on an aging AC or furnace.
• How to Claim Your Mass Save Heat Pump Rebate (2026)Seven-step procedural guide from Home Energy Assessment to rebate check. With realistic timelines and the four mistakes that forfeit the rebate.
• Income-Qualified Heat Pump Installation in MassachusettsEnhanced Mass Save rebates ($16K cap), federal HEAR ($8K), and the no-cost Turnkey path for households below 60% SMI — how each works and how they stack.
• Oil to Heat Pump Conversion in MassachusettsOil-heat-to-heat-pump conversion playbook: costs, Mass Save rebates, oil-tank decommissioning, electrical panel upgrades, and post-rebate payback math.
• Heat Pump vs Furnace in Massachusetts2026 side-by-side: install cost, operating cost, Mass Save rebates, and 20-year cost of ownership for heat pumps vs oil and gas furnaces.
• Mitsubishi Heat Pump Installation in MassachusettsMitsubishi M-Series, MXZ, and P-Series cold-climate lines in MA — HPQPL eligibility, Diamond Contractor, and cost vs Daikin and Midea.
• Daikin Heat Pump Installation in MassachusettsDaikin Aurora and LV-Series cold-climate lines, MA HPQPL eligibility, and how Daikin compares for Massachusetts homes.
• Bosch Heat Pump Installation in MassachusettsBosch IDS, Climate 5000, Greensource geothermal — the specialist choice for ducted retrofits in MA homes with existing ductwork.
• Heat Pump Cost in MassachusettsFull 2026 cost breakdown by system type and zone count with post-rebate net pricing and regional MA variation.
• Geothermal vs Air-Source Heat Pump2026 comparison: install cost, COP, operating cost, lifespan, and rebate eligibility with §25D expired.
• Heat Pump Sizing for Massachusetts HomesSquare-foot rule of thumb plus the six things that move your real Manual J output, with the 90–120% sizing-bonus rule.
• Heat Pump Install Day in Massachusetts10-step procedural guide for the install itself — pre-walk to inspection. Companion to the rebate-claim-process page.
• Heat Pump Noise in MassachusettsDecibel ranges for indoor/outdoor units, distance rule, and Cambridge/Boston/Newton/Somerville noise ordinances.
• Cold-Climate Heat Pumps ExplainedENERGY STAR ccASHP (70% capacity at 5°F, COP 1.75+), capacity retention curves, and why it gates Mass Save HPQPL listing.
• The Mass Save Home Energy AssessmentThe free 60-90 minute assessment that gates every rebate, the HEAT Loan, and the federal HEAR program.
• Heat Pump Maintenance in MassachusettsAnnual schedule, $150-$250 professional service, 15-20 year lifespan, coastal-MA wear considerations.
• Electric Panel Upgrade for Heat Pump25-35% of MA installs need one. Load-calc logic + HEAR funding up to $4,000.
• Massachusetts HVAC & Mass Save GlossaryPlain-English definitions of every Mass Save and HVAC install term — HPIN, HPQPL, Manual J, HEAR, OBBBA, refrigerants. ~40 entries.

Estimate your number

• Massachusetts Heat Pump Cost & Rebate CalculatorEstimate your installed heat pump cost net of Mass Save rebates, IRA HEAR, and 20-year fuel savings. Includes monthly HEAT Loan payment. Updated for 2026 program rates.