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Get a Free QuoteThe honest math for 2026: at Eversource's all-in $0.36/kWh, an efficient gas furnace is actually cheaper to run than a heat pump. The heat pump still wins — on Mass Save rebates, one system for heating and cooling, no combustion, and against oil or propane. Here is the full breakdown for MA homeowners.
Get a personalized comparison for your Massachusetts home.
A side-by-side comparison using current Massachusetts energy prices and equipment costs as of February 2026.
Space-heating cost only, based on National Grid gas at $1.85/therm (92% AFUE furnace) vs a COP 3.0 heat pump at Eversource's all-in bundled $0.36/kWh (live from our canonical rate database). At MA's high all-in electric rates, the gas furnace runs cheaper in every home size — the heat pump's case is rebates, AC-in-one, and decarbonization, covered below.
Operating cost only — this is the running bill, before equipment, the up-to-$8,500 Mass Save rebate, or the central AC a heat pump replaces but a gas furnace still needs. Estimates assume typical insulation for MA homes built 1960-2000; actual figures vary with thermostat settings, occupancy, and insulation quality. Enrolling in a utility heat pump rate, if your utility offers one, narrows this gap.
A 92% AFUE gas furnace converts 92% of gas energy into heat. For every therm (100,000 BTU) of gas at $1.85, you get 92,000 BTU of delivered heat.
An average MA home needs roughly 80-100 million BTU per heating season. At $2.01 per 100k BTU, that is about $1,600 - $2,010 in gas alone, plus fixed delivery charges of $15-25/month.
A cold-climate heat pump with COP 3.0 produces 3 units of heat for every 1 unit of electricity consumed. One kWh = 3,412 BTU, so at COP 3.0, one kWh delivers 10,236 BTU.
At Eversource's all-in bundled $0.36/kWh, the heat pump costs about 74% more per delivered BTU than the gas furnace. A 3x-efficient heat pump still loses to gas here because MA electricity costs far more than 3x the price of gas per unit of energy. Only a much cheaper electricity rate would flip it.
Because the running bill is only one line. The heat pump replaces both your furnace and your central AC with one system, qualifies for up to $8,500 in Mass Save rebates, removes all on-site combustion and carbon-monoxide risk, cuts your carbon roughly two-thirds, and beats oil, propane, and electric baseboard outright on operating cost. Pairing it with rooftop solar and net metering can push its running cost toward zero. If your utility offers a dedicated heat pump rate, enrolling narrows the gap against gas further.
You do not have to choose one or the other. A dual-fuel system uses the heat pump for 85-95% of heating hours and switches to gas only during extreme cold events.
The heat pump runs as the primary system. When outdoor temperatures drop below a set switchover point (typically 5-15 F), the gas furnace automatically takes over. In a typical MA winter, this happens only 50-100 hours per season.
Dual-fuel systems cost $8,000-$15,000 (a single-zone or partial heat pump plus keeping the existing furnace) versus $12,000-$22,000 for a full heat pump replacement. At MA's high electric rates, dual-fuel is especially smart: you get the heat pump's summer AC and shoulder-season comfort while gas carries the coldest, most expensive-to-electrify hours.
You keep paying the gas connection fee ($10-15/month or $120-180/year) even if you barely use gas. You also maintain two systems. And you may not qualify for the full $8,500 Mass Save rebate, which requires whole-home heat pump conversion.
We install heat pumps for a living, but we believe in honest advice. Here are scenarios where sticking with gas makes more financial sense:
If you installed a condensing gas furnace in the last 2-3 years, it has 15+ years of efficient life remaining. The upfront cost of a heat pump system ($12,000-$22,000 before rebates) won't pay back quickly enough to justify replacing equipment that works well. Wait until your furnace nears end-of-life.
At MA's high all-in electric rate, an efficient gas furnace already runs cheaper than a COP 3.0 heat pump per delivered BTU — and the cheaper your gas (some Berkshire Gas or municipal territories run below $1.20/therm), the wider that gap. If your only goal is the lowest monthly heating bill and you have no interest in the rebate, the all-in-one AC, or decarbonization, sticking with gas is defensible. Check your actual gas bill before deciding.
A whole-home heat pump needs 30-60A of panel capacity. If your home has a 100A panel that's already full, you may need a $2,000-$4,000 panel upgrade to 200A first. This added cost lengthens payback significantly. Some ductless systems can work on smaller circuits, so get a professional load assessment.
Oversized homes with minimal insulation and air sealing need enormous heat pump systems that are expensive to install. Invest in weatherization first -- Mass Save covers 75-100% of insulation costs. Then reassess heat pump sizing. The combination of weatherization + right-sized heat pump is always more cost-effective than oversizing the heat pump alone.
Massachusetts offers the most generous heat pump rebates in the country. Here is what is available in 2026 for switching from gas to a heat pump.
The federal Section 25C energy efficiency tax credit (which previously offered up to $2,000 for heat pumps) expired on December 31, 2025, under the OBBBA legislation. Do not rely on any federal tax credit for your heat pump project in 2026. Mass Save rebates and the 0% HEAT Loan are your primary financial incentives.
Switching from gas to a heat pump reduces your household carbon footprint significantly, even accounting for the electricity generation mix on the Massachusetts grid.
Based on 1,200 therms/year at 11.7 lbs CO2/therm
MA grid: 0.53 lbs CO2/kWh (2025 average, increasingly clean)
Small residual from grid electricity on cloudy winter days
Massachusetts has mandated 80% emissions reduction by 2050 and is on track to achieve 50% renewable electricity by 2030. As the grid decarbonizes, heat pump emissions drop automatically -- a gas furnace's emissions never improve. By 2030, a heat pump in MA may emit under 1.5 tons CO2/year from the same electricity consumption.
Not against an efficient gas furnace. At Eversource's all-in bundled rate of $0.36/kWh, a cold-climate heat pump (COP 3.0) costs roughly $4,207/year to heat an average 2,000 sq ft MA home, versus about $2,413/year for a 92% AFUE gas furnace at $1.85/therm — so the heat pump runs about $1,794/year MORE. Massachusetts's high all-in electric rates flip the usual "heat pumps always win" story. The heat pump's real advantages are different: Mass Save rebates (up to $8,500), one system that both heats and cools (no separate $4,000-6,000 AC), no on-site combustion or carbon-monoxide risk, lower carbon, and a decisive win over oil, propane, and electric-resistance heat. Pair it with rooftop solar and net metering and its running cost can drop toward zero.
No. The federal 25C energy efficiency tax credit expired on December 31, 2025, under the OBBBA legislation signed July 4, 2025. There is no federal tax credit available for heat pump installations in 2026. Massachusetts Mass Save rebates of up to $8,500 (up to $9,500 with bonuses) and the 0% HEAT Loan remain available.
Yes. Modern cold-climate heat pumps (ccASHP) are rated to operate efficiently down to -13 F. Models from Mitsubishi Hyper-Heating, Daikin Fit, and Fujitsu XLTH maintain over 75% capacity at 5 F. Massachusetts average winter lows are 15-25 F, well within operating range. However, capacity drops during the coldest polar vortex events, which is why some homeowners opt for dual-fuel backup.
Because the monthly bill is only one line in the comparison. A heat pump replaces both your furnace AND your central AC with a single system, so against a "gas furnace + new central AC" project the up-front gap narrows sharply — especially after Mass Save rebates of up to $8,500. You also gain no combustion or carbon-monoxide risk, far lower carbon, and protection from volatile fossil-fuel prices. The pure operating-cost gap versus efficient gas is roughly $1,794/year for an average home — small enough that the rebate, the avoided AC purchase, and solar pairing routinely outweigh it. Against oil, propane, or electric baseboard, the heat pump wins on running cost too.
A whole-home cold-climate heat pump system costs $12,000-$22,000 before rebates in Massachusetts. Mass Save rebates cover up to $8,500 for whole-home conversions (up to $9,500 with sizing and weatherization bonuses). After rebates, net cost is typically $2,500-$13,500 depending on system size and complexity. Because the heat pump also replaces a separate central AC, compare it against a "new furnace + new AC" project, not the furnace alone, when judging the up-front math.
A dual-fuel (hybrid) setup can make a lot of sense in Massachusetts, and at today's high all-in electric rates it is more attractive than ever. The heat pump handles the milder shoulder-season and most winter hours; the gas furnace takes over on the coldest days, when both the heat pump's efficiency and the MA electric rate make gas the cheaper fuel. This approach costs less upfront than full heat pump replacement. However, you still pay gas connection fees ($10-15/month) year-round even when you barely use gas.
Mass Save offers up to $8,500 in rebates for whole-home heat pump systems that displace fossil fuel heating. The partial displacement tier pays $1,125 per ton (max $8,500) and the whole-home tier pays $2,650 per ton (max $8,500). Income-eligible households can qualify for enhanced Mass Save coverage. Additional rebates are available for weatherization done alongside the heat pump install. The 0% HEAT Loan covers up to $25,000.
At Massachusetts's high all-in electric rates, an efficient gas furnace already wins on operating cost — so gas (or a dual-fuel setup) is the more practical choice if: (1) you just installed a brand-new high-efficiency gas furnace (96%+ AFUE) with 15+ years of life left, (2) your home has severe ductwork issues that would require $5,000+ in modifications, (3) you have access to unusually low gas rates below $1.20/therm, or (4) your electrical panel cannot support a heat pump without a costly $2,000-$4,000 panel upgrade. The heat pump still makes sense for the rebate, the all-in-one AC, decarbonization, and against oil or propane.
A typical whole-home heat pump installation takes 2-4 days for a ductless mini-split system and 3-5 days for a ducted central heat pump. Timeline from signing to completion is usually 4-8 weeks, depending on equipment availability and permit processing. Mass Save energy audits (required for rebates) add 2-3 weeks to the front end.
Get a free, no-pressure assessment of whether a heat pump, gas furnace, or hybrid system makes the most sense for your home. We will run the numbers on your actual usage and give you an honest recommendation.
Serving all of Massachusetts. NABCEP certified installers. Mass Save registered contractor.