Home Heating Cost in Maine (2027): Natural Gas vs Oil vs Electric
Heating costs for your home size in Maine
Every figure below starts from Maine's current average energy prices and runs them through the seasonal model behind our heating cost calculator: a Climate Region #1 heating load sized to your home, served by standard mid-efficiency equipment.
Pick natural gas and a 1,680 sq. ft. Maine home costs about $2,410 to heat for the season. Pick electric baseboard heat and the same season costs about $10,890.
Maine Heating Fuel Costs for One Season
| Fuel & equipment | Price | Season use | Cost / season |
|---|---|---|---|
| Natural gasnatural gas boiler, 82 AFUE | $2.39per therm | 1,008therms | ~$2,410 |
| Propanepropane boiler, 82 AFUE | $3.55per gal | 1,102gals | ~$3,910 |
| Heating oiloil boiler, 82 AFUE | $5.97per gal | 727gals | ~$4,350 |
| Electric heat pumpductless, ~2.9 COP | $0.463per kWh | 10,992kWh | ~$5,100 |
| Electric baseboardresistance heat | $0.463per kWh | 23,500kWh | ~$10,890 |
Each row is one heating season for 1,680 sq. ft., rounded up to $10. Switch the insulation level to see how much the house itself moves the bill. Method: our heating cost calculator.
A Season of Heat, Fuel by Fuel
Same house, same winter, five fuels. Hover a bar for the use and the rate behind it.
Season = the modeled Maine heating load on standard mid-efficiency equipment; fuels ranked like the heating cost calculator (pellet and wood stoves are manual-load and stay unranked).
The Next 10 Winters, Fuel by Fuel
This chart carries the season costs forward 10 winters. Electricity follows its Maine track record, about 7.38% a year (2013 to 2023, energy database). Natural gas, heating oil and propane have no long series in our data, so they get two clear cases rather than an invented rate. Hover or tap a column for that winter's costs.
Season costs at average insulation; winter 1 is today's prices. Totals rounded up to $10.
If natural gas, heating oil and propane stay at today's prices, natural gas costs about $24,050 over 10 winters here, against about $153,160 for electric baseboard heat.
Maine Climate and Your Heating Load
Region #1 on the map means long, hard winters: daytime averages of about 25°F, nighttime averages near 6°F. In Maine, that load makes fuel price and equipment efficiency matter more than almost anywhere else.
Weather factors that affect heating in Maine:
Roof ice. When warm house air escapes into the attic, snow on the roof melts and refreezes at the cold eaves. That ice is a visible heat-loss meter: air sealing and attic insulation fix both problems.
Snow cover. A heat pump's outdoor coil needs open air to work, and condensing furnaces breathe through low wall vents. Both need clearance from snowbanks, so ask the installer how high they mount the unit and the vents.
Salt air. Near the coast, salt spray corrodes the outdoor coil and cabinet of a heat pump. Coated coils and a freshwater rinse once a year extend its life.
Cold-snap failures. A heating breakdown during a hard freeze can mean burst pipes by morning. A fall tune-up, spare filters and a temperature alert on the thermostat are cheap insurance.
Oil-fired boilers are still common in older Maine houses, often with a tank in the basement. With heating oil at $5.97 a gallon, the rows above it show what a switch to natural gas or a heat pump would change. The best window for new heating equipment here is the off-season, before the first hard freeze. A failure in January means paying for speed, not for the best quote.
Beyond Fuel: Where Heating Money Leaks
The shell of the house. A well-insulated home needs about 12% less heat than an average one in this model, and a drafty one about 12% more; with natural gas in Maine, each step is worth about $290 a season.
Up the flue. Going from 82 to 93 AFUE saves about $290 a season on natural gas. Holding on to an aging 62 AFUE unit costs about $780 extra.
Ductwork. Bare ducts lose about 17% of a furnace's heat in the calculator's duct model. Sealing and insulating them recovers most of it. Boilers and ductless heat pumps have no such loss.
Why the Heat Pump Beats Baseboard
If your home heats with baseboards, the heat-pump row is the upgrade path. In Maine the model credits a heat pump with about 2.2 kWh of heat per kWh, after a cold-climate deduction, so the season drops from roughly $10,890 to $5,100, about $5,800 less every winter. It still comes in above natural gas, propane and heating oil here.
Common Questions About Heating a Maine Home
What heats a Maine house for the least money?
Right now it is natural gas, at about $2,410 a season for 1,680 sq. ft. The runner-up is propane at about $3,910. Natural gas counts only if the street has a natural gas main.
How much does insulation change the heating bill here?
Using natural gas, poor insulation pushes this 1,680 sq. ft. house to about $2,700 a season, and good insulation brings it down to about $2,120. The difference, about $580, comes back every winter.
Is it worth switching off heating oil in Maine?
Today's numbers favor the switch: about $4,350 a season on heating oil against about $2,410 on natural gas. That is roughly $19,390 over 10 winters if prices hold, before any installation cost. That option needs natural gas service at the street.
Pellet and wood stoves stay out of the ranking because they need hand loading; see the pellet stove calculator for their costs.
About these numbers: seasonal estimates from current average Maine energy rates and a modeled heating load. Use them to compare fuels, not as a quote; real bills follow your winter, your house and your equipment.
