A heating fuel cost comparison depends on local fuel prices, equipment efficiency, and how much heat a home needs. For a home requiring about 60 million BTU of delivered heat each year, fuel expenses can range from roughly $800 for natural gas to more than $3,500 for electric resistance heat, before service or equipment costs.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Natural gas | $800 | $1,050 | $1,350 | Fuel only; 90% furnace efficiency |
| Heating oil | $1,600 | $1,950 | $2,300 | Fuel only; 85% boiler efficiency |
| Propane | $1,700 | $2,100 | $2,500 | Fuel only; 90% furnace efficiency |
| Air-source heat pump | $900 | $1,250 | $1,650 | Electricity; seasonal COP near 2.5 |
| Electric resistance | $2,300 | $2,950 | $3,850 | Electricity; baseboard or resistance furnace |
| Wood pellets | $1,200 | $1,500 | $1,950 | About 5 tons at 75% stove efficiency |
Assumptions: 60 million BTU of annual delivered heat, typical retail fuel rates, and equipment in serviceable condition. Local weather and home insulation can substantially change annual use.
Annual heating fuel prices for a typical home
For equal heat output, natural gas and heat pumps often have the lowest fuel expense, while electric resistance heat is usually the costliest. The table uses a consistent heating load to make fuel types comparable; it does not include equipment payments, chimney work, tank rental, or fixed utility charges. Actual consumption can be much lower in a mild climate or a well-insulated home.
Approximate fuel-only rates per million BTU of useful heat are $13-$23 for natural gas, $15-$28 for a heat pump, $27-$39 for heating oil, $29-$44 for propane, $20-$33 for pellets, and $38-$65 for electric resistance. These ranges reflect common retail prices and typical operating efficiencies, not a guaranteed local quote.
A heat pump’s cost advantage depends on its seasonal performance and the local electricity rate. In very cold weather, efficiency can fall and backup resistance heat may run more often. Gas prices can also include monthly customer charges, which matter more in a small home or a home that uses gas only for occasional heating.
What fuel, delivery, and equipment add to the bill
The delivered fuel rate is only one part of the annual heating expense. Bills may also include a fixed service charge, tank rental, delivery fee, maintenance visit, or equipment replacement. This estimate separates recurring fuel and service costs from one-time installation expenses.
| Cost component | Natural gas | Heating oil or propane | Electric heat pump | Electric resistance |
|---|---|---|---|---|
| Fuel or energy | $13-$23 per useful MMBtu | $27-$44 per useful MMBtu | $15-$28 per useful MMBtu | $38-$65 per useful MMBtu |
| Fixed account or tank charges | $10-$35 per month | $0-$300 per year | $10-$35 per month | $10-$35 per month |
| Routine service | $100-$250 per year | $150-$350 per year | $100-$300 per year | $75-$200 per year |
| Typical equipment installation | $3,500-$8,500 | $4,000-$10,000 | $5,000-$14,000 | $2,000-$6,000 |
| Delivery or setup | $0-$500 connection work | $0-$150 per delivery | $300-$2,000 electrical work | $200-$1,500 electrical work |
Gas connection work can exceed the table range when a main extension or street excavation is needed. Tank delivery fees vary by company and order size; some suppliers waive them for automatic delivery or a minimum purchase. Installation ranges are broad because ductwork, venting, electrical service, and removal of old equipment can change the project scope.
Where labor is billed separately, technicians commonly charge $75-$150 per hour, while a full replacement is usually quoted as a project price. For example, 8-12 hours of field labor at $90-$140 per hour represents $720-$1,680 before equipment, materials, permits, or company overhead.
How efficiency and house size change fuel use
A home’s heat demand and the equipment’s efficiency can change annual fuel spending more than a small difference in advertised fuel prices. A 1,200-square-foot home in a mild region might need 25-40 million BTU of delivered heat annually; a drafty 2,500-square-foot home in a cold region can need 90-120 million BTU or more.
Heating equipment converts purchased energy into useful heat at different rates. A 90% gas furnace needs about 1.11 BTU of fuel for each BTU delivered. An older 70% furnace needs about 1.43 BTU, increasing fuel use by roughly 29% for the same comfort. Oil and propane systems show similar savings when an older, poorly tuned unit is replaced with a higher-efficiency model.
Heat pumps use a coefficient of performance, or COP, rather than furnace efficiency. A seasonal COP of 2.5 means roughly 2.5 units of heat are delivered per unit of electricity consumed. A cold-climate unit may maintain better performance at low outdoor temperatures, but a system that relies heavily on electric backup can approach resistance-heating prices during cold spells.
Insulation and air sealing reduce the heat demand itself. Sealing major drafts, insulating an attic, or correcting an uninsulated basement rim can lower fuel use, but savings vary with the existing condition and climate. An energy audit costing about $150-$600 may identify the most cost-effective work; some utility programs offer discounted audits.
Which fuel costs less per million BTU
Comparing the cost per useful million BTU avoids misleading comparisons between gallons, therms, kilowatt-hours, and tons of pellets. The estimates below use representative retail rates and typical seasonal equipment efficiency. The actual rate should be recalculated using the supplier’s current delivered price and the system’s rated performance.
| Fuel or system | Typical retail price | Useful heat assumption | Estimated cost per useful MMBtu |
|---|---|---|---|
| Natural gas | $1.20-$2.10 per therm | 90% furnace | $13-$23 |
| Air-source heat pump | $0.13-$0.22 per kWh | Seasonal COP 2.5 | $15-$28 |
| Wood pellets | $250-$400 per ton | 75% stove; about 12.4 useful MMBtu per ton | $20-$33 |
| Heating oil | $3.20-$4.50 per gallon | 85% boiler | $27-$39 |
| Propane | $2.50-$3.80 per gallon | 90% furnace | $30-$46 |
| Electric resistance | $0.13-$0.22 per kWh | Near 100% at the point of use | $38-$65 |
Pellet prices vary by bagged versus bulk delivery, purchase quantity, and storage access. Propane rates can be lower for customers who own their tank and buy in larger quantities, but tank purchase and installation can add several thousand dollars. Electricity rates can include delivery charges and seasonal surcharges beyond the energy rate.
Regional fuel rates and delivery affect the comparison
The same heating system can cost 10%-30% more to operate in a high-rate market than in a lower-cost area. Natural gas is often most competitive where pipeline service is established. Homes outside gas service areas may face costly extensions, making propane, oil, pellets, or a heat pump more practical to compare.
Northeastern and Mid-Atlantic households commonly use heating oil or propane, and delivered prices can rise during cold snaps or when roads and supply are constrained. Rural customers may pay more for fuel delivery or have fewer suppliers to compare. In the Midwest and South, natural gas access is widespread in many towns, though local utility rates and winter demand still vary.
Electricity prices differ substantially by state and utility territory. A heat pump can offer strong savings where electricity is moderate and winters are not exceptionally severe. In areas with high electricity rates, its operating cost may be closer to oil or propane, particularly if the home needs substantial backup heat. A local bill or supplier quote is more useful than a national average.
Installation labor and fuel-system switching expenses
Changing fuels can cost more upfront than replacing equipment with the same fuel type. A basic furnace replacement may take 1-2 days, while switching from oil or propane to a heat pump can require electrical upgrades, new outdoor equipment, and duct modifications. A new gas connection can require utility approval and trenching, extending both schedule and budget.
Common labor rates are about $75-$150 per hour, with higher charges possible for emergency, weekend, or remote work. A straightforward equipment swap often includes several technicians for 8-16 hours. Heat pump installations may take 1-3 days when a new outdoor pad, refrigerant lines, condensate drainage, or panel work is included. A tank removal or chimney liner can add a separate trade and disposal charge.
Before approving a switch, request a written scope that lists equipment model, capacity, efficiency rating, duct or piping changes, electrical work, permits, old-system removal, and startup testing. Verify whether the quote includes a new thermostat and any required code upgrades. A lower equipment price can become a higher project price if major site work is excluded.
Three household heating quotes with different fuel loads
These examples show how annual heat demand and local rates produce different totals. Fuel calculations exclude fixed account fees and maintenance unless stated. They are planning estimates, not bids for a specific home.
| Home and system | Annual heat demand | Price assumption | Estimated annual fuel bill |
|---|---|---|---|
| 1,400 sq. ft., gas furnace at 90% | 45 million useful BTU | $1.60 per therm | $800-$900 |
| 2,000 sq. ft., oil boiler at 85% | 70 million useful BTU | $3.80 per gallon | $2,000-$2,300 |
| 1,800 sq. ft., heat pump at seasonal COP 2.5 | 55 million useful BTU | $0.17 per kWh | $1,000-$1,300 |
For the gas example, a 90% furnace uses roughly 500 therms to deliver 45 million BTU; at $1.60 per therm, the energy charge is about $800 before fixed fees. The oil example uses approximately 600 gallons at the stated demand and efficiency. The heat pump example assumes it maintains a seasonal COP near 2.5; frequent backup resistance use would raise the bill.
A contractor or utility energy assessment can refine the annual heat-load estimate. Past fuel deliveries, degree-day data, thermostat settings, and measured home air leakage are more useful than square footage alone. Ask suppliers to distinguish fuel price from delivery, service, and account charges when comparing quotes.
Lower the heating bill by controlling the fuel decision
The most reliable savings come from reducing heat demand and comparing complete installed costs, not just choosing the lowest fuel-unit price. Use recent bills or delivery records to estimate annual consumption, then compare cost per useful BTU with realistic local rates and equipment efficiency.
When replacing equipment, request at least two itemized quotes with the same capacity and comparable efficiency. Avoid paying for oversized equipment, unnecessary duct replacement, or premium controls that do not match household needs. Confirm that the contractor has included permits, startup, removal, and any electrical or venting work.
For delivered fuels, compare at least three suppliers and ask about minimum orders, automatic-delivery terms, tank rental, and price-lock fees. A pre-season purchase can sometimes avoid winter demand premiums, but a fixed-price plan is only useful if its fees and cancellation rules are clear. Do not choose a supplier based only on a low introductory rate.
Simple maintenance also supports rated efficiency. Replace furnace filters as recommended, keep heat-pump outdoor coils clear, and schedule oil burner or boiler service at the interval specified by the manufacturer. Correcting a neglected system can restore performance, but maintenance is not a substitute for replacing unsafe or failing equipment.
When comparing a fuel switch, calculate the upfront difference alongside annual operating savings. If a heat pump costs $5,000 more to install but saves $500 per year, the simple payback is about 10 years before financing, repairs, incentives, or future rate changes. Local utility programs and tax rules may reduce eligible project costs, so verify current requirements before including an incentive in the budget.