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What a furnace swap really costs here — gas versus oil, standard versus high-efficiency, the line items that move the price, and the honest math on when a heat pump beats a like-for-like replacement.
In 2026, a like-for-like furnace replacement in Massachusetts runs roughly $4,000–$9,000 installed for a standard-efficiency gas or oil unit and $7,500–$12,000 for a high-efficiency condensing model, with Boston at the higher end for labor and code (Angi pegs the Boston average near $6,396). Fuel type, AFUE tier, and venting or chimney-liner work drive the price. There is no federal furnace tax credit in 2026 — Section 25C expired December 31, 2025.
The honest answer is a range, because “a furnace” covers a $4,000 builder-grade swap and a $12,000 high-efficiency job in the same breath. Below are the 2026 installed ranges from national and regional cost guides. Treat them as anchors, not a quote — the number that matters is what a licensed Massachusetts installer writes down after seeing your ducts, venting, and fuel.
Installed ranges: HomeGuide, Angi, and Carrier 2026 cost guides. Boston-area average about $6,396 (Angi), reflecting higher New England labor and code costs.
Two homes on the same street can get furnace quotes $5,000 apart. Here is where that spread actually comes from, so you can read a quote line by line instead of guessing.
| Cost driver | What it is | Price impact |
|---|---|---|
| Efficiency (AFUE) tier | Standard 80% AFUE units are cheapest; condensing 90–98% AFUE models cost more upfront but burn less fuel. The tier is usually the biggest single swing in the quote. | High |
| Fuel type (gas / oil / propane) | Oil furnaces and gas furnaces price differently, and switching fuels adds line items. Oil-specific work (tank, filter, chimney) can raise an oil job. | High |
| Venting & chimney liner | A condensing furnace needs sealed PVC sidewall venting and a condensate drain. Moving off a masonry chimney can require a liner — typically $1,500–$4,000 for a furnace. | Medium–High |
| Ductwork condition | Leaky, undersized, or asbestos-wrapped ducts add cost. Homes with hydronic (baseboard/radiator) heat have no ducts at all — a furnace is not even the like-for-like swap there; a boiler is. | Medium |
| Permits & inspection | Massachusetts requires a permit for heating-appliance replacement, pulled by a licensed installer, with a mechanical/gas inspection. Fees are set by each city or town. | Low |
| Old unit removal & disposal | Hauling and disposing of the old furnace typically runs $250–$645, though many contractors fold it into the labor quote. | Low |
| Oil tank (oil systems only) | An aging oil tank may need replacement alongside the furnace: roughly $1,000 for an above-ground tank, up to $6,200 for an in-ground tank removal and replacement. | Situational |
Massachusetts is unusual: roughly a quarter of homes still heat with oil, one of the highest rates in the country, alongside natural gas in the denser suburbs and cities. The two furnaces are not interchangeable line-for-line.
Pick your fuel, utility, and home size. The tool compares a like-for-like furnace against a cold-climate heat pump over 10 years — install plus operating cost — using your utility's real per-kWh rate and current MA fuel prices. Whichever is cheaper wins; it can genuinely go either way.
Adjust to your quote. Sourced range: $2,500–$12,000 (HomeGuide/Angi/Carrier 2026).
Before rebates. Sourced range: $8,000–$30,000+ (multi-zone/ducted, 2026).
Lower 10-year total cost
Natural gas furnace wins by $12,406
Over 10 years at today's prices, the like-for-like furnace costs about $12,406 less for this home on Eversource's rate. Change the fuel or utility and the winner can flip — that is the point.
No 2026 furnace credit
~625 therms at $2.03/therm
After $7,950 Mass Save whole-home rebate
~5,862 kWh at $0.36/kWh, COP 3.0
What this model does and doesn't include
Both paths are compared on the same delivered heat. The heat pump also replaces summer air conditioning (not counted here) and qualifies for the Mass Save 0% HEAT Loan; enrolling in your utility's seasonal heat-pump rate lowers the winter electric cost below the figure shown. Prices are held flat — heating fuel and electricity escalate at different rates, so treat this as a like-for-like snapshot, not a forecast. Electricity price is your utility's own bundled rate, never a state average.
There is no universal answer, and anyone who gives you one is selling something. The right call turns on your fuel, your electric utility, your home's weatherization, and whether you want air conditioning too. Here is the honest split.
A heat pump's running cost is set by your electricity price, and in Massachusetts that varies 30–40% depending on which utility serves you — not by a statewide average. An Eversource customer and a municipal-light-plant customer can reach opposite conclusions on the same furnace-vs-heat-pump question. Here are the real per-utility rates the calculator uses:
| Utility | Type | Residential rate | As of |
|---|---|---|---|
| South Hadley Electric Light Department | Municipal | $0.13/kWh | Jan 2025 |
| Chester Electric Light Department | Municipal | $0.14/kWh | Jan 2025 |
| Holden Municipal Light Department | Municipal | $0.14/kWh | May 2025 |
| Russell Municipal Light Department | Municipal | $0.14/kWh | Jan 2025 |
| Sterling Municipal Light Department | Municipal | $0.15/kWh | Jan 2025 |
| Paxton Municipal Light Department | Municipal | $0.15/kWh | Jan 2025 |
| Templeton Municipal Light Plant | Municipal | $0.15/kWh | Jan 2025 |
| West Boylston Municipal Light Plant | Municipal | $0.15/kWh | Jan 2025 |
| Littleton Electric Light & Water Department | Municipal | $0.15/kWh | Jan 2025 |
| Groveland Electric Light Department | Municipal | $0.15/kWh | Jan 2025 |
| Boylston Municipal Light Department | Municipal | $0.15/kWh | Jan 2025 |
| Middleton Electric Light Department | Municipal | $0.15/kWh | Jan 2025 |
| Hardwick Electric Department | Municipal | $0.15/kWh | Jan 2025 |
| Merrimac Municipal Light Department | Municipal | $0.15/kWh | Jan 2025 |
| Princeton Municipal Light Department | Municipal | $0.16/kWh | Jan 2025 |
| Groton Electric Light Department | Municipal | $0.16/kWh | Jan 2025 |
| Hudson Light and Power Department | Municipal | $0.1609/kWh | Jun 2026 |
| Wellesley Municipal Light Plant | Municipal | $0.1616/kWh | Jan 2023 |
| North Attleborough Electric Department | Municipal | $0.1633/kWh | Feb 2026 |
| Braintree Electric Light Department | Municipal | $0.1693/kWh | Mar 2025 |
| Norwood Municipal Light Department | Municipal | $0.1714/kWh | Sep 2025 |
| Mansfield Municipal Electric Department | Municipal | $0.1717/kWh | Mar 2026 |
| Middleborough Gas & Electric Department | Municipal | $0.1737/kWh | May 2024 |
| Shrewsbury Electric & Cable Operations | Municipal | $0.1765/kWh | Mar 2026 |
| Chicopee Electric Light Department | Municipal | $0.1765/kWh | Feb 2026 |
| Danvers Electric Division | Municipal | $0.1767/kWh | Nov 2025 |
| Westfield Gas & Electric Light Department | Municipal | $0.191/kWh | May 2026 |
| Holyoke Gas & Electric Department | Municipal | $0.1933/kWh | Jan 2026 |
| Hingham Municipal Lighting Plant | Municipal | $0.194/kWh | Mar 2026 |
| Peabody Municipal Light Plant | Municipal | $0.1976/kWh | Apr 2024 |
| Georgetown Municipal Light Department | Municipal | $0.1985/kWh | Mar 2026 |
| Taunton Municipal Lighting Plant | Municipal | $0.2047/kWh | May 2026 |
| Hull Municipal Lighting Plant | Municipal | $0.2094/kWh | May 2025 |
| Reading Municipal Light Department | Municipal | $0.2163/kWh | Jun 2026 |
| Marblehead Municipal Light Department | Municipal | $0.2203/kWh | Jan 2024 |
| Wakefield Municipal Gas & Light Department | Municipal | $0.2275/kWh | Apr 2026 |
| Ashburnham Municipal Light Plant | Municipal | $0.235/kWh | May 2026 |
| Ipswich Electric Light Department | Municipal | $0.2352/kWh | Mar 2026 |
| Rowley Municipal Lighting Plant | Municipal | $0.2434/kWh | Mar 2026 |
| Concord Municipal Light Plant | Municipal | $0.2435/kWh | Apr 2026 |
| Belmont Municipal Light Department | Municipal | $0.267/kWh | Mar 2026 |
| Cape Light Compact | IOU | $0.3554/kWh | Apr 2026 |
| Eversource | IOU | $0.359/kWh | Feb 2026 |
| National Grid | IOU | $0.39/kWh | Feb 2026 |
| Unitil | IOU | $0.4506/kWh | Jan 2026 |
Mass Save does not rebate a fossil-fuel furnace — but if you are open to a heat pump, the incentives are large enough to change the decision. These figures are current for equipment installed January 1 through December 31, 2026 (verified against masssave.com):
Requires the home to be sufficiently weatherized first (built 2000+, a Home Energy Assessment showing under $1,000 of recommended work, or post-2013 recommendations completed).
When the heat pump does not fully displace your existing heating system.
Enhanced incentive for qualifying households, or a no-cost installation through Mass Save Turnkey Services for the lowest-income tier. Confirmed at application.
Finances the balance after rebates. Requires a completed Home Energy Assessment and lender approval — usable toward weatherization even if you keep a furnace.
Massachusetts' three electric utilities (Eversource, National Grid, and Unitil) also now offer a seasonal heat-pump electric rate with a lower winter distribution charge, which further trims a heat pump's November-through-April running cost. Municipal light plant customers are not in Mass Save and use their own utility's rebate program — see the linked MLP guides.
Many furnace cost guides still tell 2026 homeowners they can claim a 30% federal tax credit — up to $600 — on a high-efficiency gas, oil, or propane furnace. That was the Section 25C credit, and it expired on December 31, 2025. It does not apply to any furnace installed in 2026. The residential solar credit (Section 25D) also expired at the end of 2025, and the EV-charger credit (Section 30C) expired June 30, 2026. In 2026, real furnace-adjacent money is state and utility programs, aimed at heat pumps and weatherization — not a federal furnace credit. If a quote or article leans on that $600, treat the rest of its numbers with caution.
This page is for a planned replacement. If it is an emergency tonight, the decisions and the rebate-sequencing traps are different.
For 2026, a like-for-like furnace replacement in Massachusetts generally runs about $4,000 to $9,000 installed for a standard-efficiency gas or oil unit, and $7,500 to $12,000 for a high-efficiency condensing model — with the Boston area at the higher end because labor and code requirements cost more (Angi puts the Boston average around $6,396). The single biggest cost drivers are the fuel type, the efficiency (AFUE) tier, and whether the job needs venting or chimney-liner work. These are national and regional aggregator ranges (HomeGuide, Angi, Carrier, 2026); your own contractor quote is the number that matters.
Tell us your fuel, utility, and home — we'll map the real 10-year cost both ways and the Mass Save money you'd capture, with no pressure to electrify.
Sources & verification
Furnace installed-cost ranges from HomeGuide, Angi, and Carrier 2026 cost guides (national and Boston-area). Fuel prices from the Massachusetts DOER 2025–26 heating-season figures (heating oil $3.10/gal, propane $3.17/gal, natural gas $2.03/therm; DOER updates these each fall). Mass Save heat pump rebate, income-eligible, and HEAT Loan terms verified July 2026 against masssave.com for equipment installed in calendar year 2026. Electricity prices are each utility's own bundled residential rate from the NuWatt canonical database — never a state average. Federal Section 25C, 25D, and 30C statuses reflect their 2025–2026 expirations. Cost figures are estimates; confirm current program terms at masssave.com and get a licensed installer quote before deciding.