Oil Heat vs Gas Heat: What Each Fuel Costs, What the Equipment Needs, and Why Both Need Electricity
- Delivered or Piped: How Oil and Gas Reach Your Burner
- Price per Million Btu Delivered: Oil vs Gas, Worked From EIA Data
- Oil or Gas, the Burner Still Needs Power: Sizing Backup for Blowers and Pumps
- Tanks, Chimneys, and Carbon Monoxide: Where Oil and Gas Differ on Safety
- Thinking About Converting From Oil to Gas? Questions to Ask First
- Conclusion
- FAQs
Every fall, many Northeast homeowners check the oil tank gauge and wait on the next delivery price. Neighbors on a gas main just get a monthly bill. The choice goes beyond price. It shapes how fuel arrives, what sits in the basement or yard, how the system is serviced, and what it needs to run. This guide builds a fuel-cost comparison from dated EIA numbers that readers can redo. It also takes a plain look at equipment and safety. One catch applies to both: oil heat vs gas heat stops the same way in a blackout, because burners, blowers, and pumps need power.
Delivered or Piped: How Oil and Gas Reach Your Burner
Heating oil comes by truck and lives in a tank on the property. Natural gas comes through the utility's pipes, so there is nothing to store and nothing to schedule. That one difference shapes cost, upkeep, and where each fuel is common. It is also the core of heating oil vs natural gas.
Heating oil
What it is: EIA describes heating oil as a distillate closely related to diesel. It is used mainly in boilers, furnaces, and water heaters.
Where it is used: Use is highest in the Northeast. Most residential use is in New England and the Central Atlantic.
Sulfur rules: Ultra-low sulfur heating oil (15 ppm sulfur or less) became required in New York in 2012. Delaware and New Jersey followed in 2016. All six New England states required it on July 1, 2018. Some suppliers also sell blends that are generally 5% biofuel by volume.
Equipment example: Beckett's AFG burner sheet lists heating oil No. 1 and No. 2. It also lists biodiesel blends up to B100 with heating oil. That applies to this burner model, not to all oil burners.
Natural gas
Supply: The local gas utility pipes it in. There is no tank and no delivery, and billing follows the meter.
Equipment: Gas-fired furnaces and boilers come in sealed-combustion, high-efficiency designs, according to the DOE.
A quick note on wording. The phrase "oil heater vs gas" can also point to oil-filled space heaters. An oil-filled radiator is an electric heater, not oil heat. This article stays on home heating fuels.
Oil is a petroleum product, so many homeowners watch the Brent crude price next to their delivery quotes.
How the fuel arrives explains a lot. The bigger question for most households is what each one costs for the same amount of heat.
Price per Million Btu Delivered: Oil vs Gas, Worked From EIA Data
Oil is sold by the gallon and gas by the thousand cubic feet. The prices on the bills cannot be compared directly. Converting both to the cost of one million Btu actually delivered into the house, at a stated efficiency, puts them on equal footing. Every input below comes from EIA, with its period and status.
Inputs
Heat content (EIA): One gallon of heating oil holds 138,500 Btu. One cubic foot of natural gas holds 1,036 Btu, so 1 Mcf is about 1.036 million Btu.
Efficiency assumptions: The calculation uses ENERGY STAR minimums for boilers: 87% AFUE for oil and 90% AFUE for gas. These are assumptions. Readers should swap in the AFUE of their own unit.
The worked example (EIA national averages)
This is an example using EIA national averages. The historical and forecast rows are kept apart on purpose and should not be mixed in one comparison.
Fuel | EIA price used | Period and status | Fuel needed for 1 million Btu delivered | Cost per 1 million Btu delivered |
Heating oil at 87% AFUE | $4.20 per gallon | Q1 2026, historical (STEO Oct 2026, Table 2) | 1,000,000 ÷ (138,500 × 0.87) = about 8.30 gallons | 8.30 × $4.20 = about $34.86 |
Natural gas at 90% AFUE | $14.77 per Mcf | Q1 2026, historical (same table) | 1 ÷ (1.036 × 0.90) = about 1.07 Mcf | 1.0725 × $14.77 = about $15.84 |
Heating oil at 87% AFUE | $5.81 per gallon | Q4 2026, forecast (same table) | About 8.3 gallons | About $48.22 |
Natural gas at 90% AFUE | $14.47 per Mcf | Q4 2026, forecast (same table) | About 1.07 Mcf | About $15.52 |
In the historical rows, natural gas heat vs oil heat comes out to less than half the cost per million Btu. The forecast rows point the same way.
Current context, kept separate: EIA's Heating Oil and Propane Update shows a U.S. average residential heating oil price of $6.190 per gallon for the week of October 19, 2026. That is a historical weekly survey, collected October through March. It is up $2.664 from a year earlier. This weekly figure should not be paired with a quarterly gas price.
What the math leaves out:
Gas fixed charges are already included: EIA derives residential gas prices from utility revenues and volumes. The price therefore reflects customer charges and fixed transportation and distribution fees, not just the gas itself. Nothing extra should be added on top of the EIA average.
A national average is not a household bill: Actual bills vary by utility and by home. When redoing the math with a local gas bill, split the fixed charges from the usage-based charges first.
Oil delivery terms: Delivery minimums and service plans can change what a household actually pays per gallon.
Electricity use: Burner, blower, and pump electricity is not part of either fuel price.
Local price differences: These can be large, so local quotes can sit well above or below the national figures.
A gas bill has more in it than the gas itself. High gas bills often include fixed and delivery charges.
Price is only part of the picture. In an outage, both fuels hit the same wall: no electricity, no heat.
Oil or Gas, the Burner Still Needs Power: Sizing Backup for Blowers and Pumps
An oil burner needs a motor, an igniter, and a control to fire. A gas furnace needs its blower and controls. Any hot water boiler needs a circulator pump. When the grid drops, the fuel in the tank or pipe can't do anything on its own.
A load worksheet from real rating plates
Oil burner: The Beckett AFG runs on 120V with a 1/7 HP motor and a 5.8A maximum operating load. That is about 696W (5.8A × 120V) at its maximum.
Gas furnace: The Carrier 59TP6C 040V14-10 is rated 115V and 7A maximum unit amps. That is about 805W (7A × 115V) at the maximum.
Hot water circulator: The Taco 007-F5 is rated 115V and 0.71A, or about 82 VA per pump. Every pump that can run at the same time counts.
240V cases: Beckett also makes a 240V AFG version (motor 5 FLA, 30 LRA). Homes on a private well often have a 240V pump. Franklin Electric's 1/2 HP, 230V two-wire submersible motor lists 5A full load and 6A service factor. That reaches about 1,380 VA at 230V.
Starting current: Motors draw more when starting. Beckett lists 30 LRA for its 240V motor. EcoFlow doesn't publish a TITAN surge rating, so an electrician should check each motor's start and run draw and the combined load.
Labeled estimate (capacity × 0.85 ÷ load)
Take an oil-fired hot water boiler. The burner plus one circulator at maximum nameplate draws 696W + 82W, or about 778W. One 5kWh battery gives 5,000 × 0.85 ÷ 778W, or about 5.5 hours of continuous electrical load. Burners cycle, so real time between recharges varies. More batteries extend it in proportion.
The battery runs the electrical parts only. Heat still needs fuel in the tank or gas in the line, and equipment that works normally.
The two TITAN models below line up with the two voltages found on that worksheet.
Most parts on that worksheet run on 120V. The burner motor, the furnace blower, and the circulator pump all fall in that group. The 778W boiler example shows how modest that combined electrical load can be. Matching it to a battery with a 120V output keeps the sizing simple. The EcoFlow TITAN 5000 Classic fits this kind of essential-circuit setup.
Some homes have a different setup. A 240V heating auxiliary pump, or a private well pump like the 1/2 HP, 230V motor on the worksheet, needs a battery that handles split-phase loads. A well pump often belongs in the same backup plan as the heating system, since both stop when the grid does. For these homes, the EcoFlow TITAN 5000 lines up with the 240V side.
How the two products divide the job: The EcoFlow TITAN 5000 Classic suits oil or gas heating equipment with matching 120V parts, such as a blower, a burner control and motor, or a circulator pump. The EcoFlow TITAN 5000 suits homes with a 240V heating auxiliary pump, or homes that also need a matching 240V well pump to keep running. A battery doesn't replace oil or gas. It also doesn't remove the venting and carbon monoxide protection needs of combustion equipment. The equipment must be working, and fuel must be on hand. Check the starting, running, and simultaneous loads of every motor. Circuits connect through the Smart Home Panel 10 version that matches the voltage, installed by a licensed electrician. Buying a battery doesn't mean heating fuel costs will go down.
Motors on burners and pumps briefly pull far more than their running amps. That is why surge power matters when sizing backup.
Electricity is one shared need. Safety is where the two fuels really part ways.
Tanks, Chimneys, and Carbon Monoxide: Where Oil and Gas Differ on Safety
Both fuels burn in the house, so both need venting, yearly service, and CO alarms. Oil adds a storage tank to look after. Gas adds the possibility of a leak that can be smelled. In oil vs gas heat, these are the points that change day-to-day care.
Safety topic | Oil heat | Gas heat |
Fuel storage | Tank on the property. EPA's federal UST rules exclude tanks storing heating oil used on the premises, but EPA notes state and local authorities may regulate them. | None at the house. The utility owns the main. |
Leaks | Check the state environmental agency's rules for tank inspection or removal. | DOE: if gas is smelled, contact the utility or heating contractor immediately. Call 911 for immediate danger. |
Carbon monoxide | CDC: have gas, oil, or coal-burning appliances serviced every year. Put battery or battery back-up CO detectors near every sleeping area. | Same CDC guidance. |
Venting and chimney | DOE: reline the chimney when installing an 80% AFUE or higher unit. High-efficiency sealed units need a new vent or relined chimney. | Same DOE guidance. |
Outage backup | Never plug a generator into a wall outlet. Backfeeding endangers utility workers (Mississippi State University Extension). CDC: run generators outside, more than 20 feet from openings. | Same. |
The U.S. Fire Administration adds two basics. Keep anything that can burn at least 3 feet from heat sources. Have heating equipment cleaned and inspected each year by a professional.
Anyone still relying on a portable generator should follow the rules for safe generator use, starting with keeping it outdoors.
For homeowners weighing a change, safety and supply lead to the last question: Is it worth switching fuels?
Thinking About Converting From Oil to Gas? Questions to Ask First
Converting is a project, not a swap. It touches the gas service, the venting, the old tank, and sometimes the heating equipment itself. These questions help frame quotes from a licensed contractor. They also keep the oil versus gas heating decision grounded in the home's own details.
Is there a gas main on the street? Only the local gas utility can confirm service and any connection cost.
Will the chimney need work? DOE says a new 80%+ AFUE unit calls for a relined chimney. High-efficiency sealed units need a new vent or relined chimney.
What happens to the oil tank? Federal UST rules exclude on-premises heating oil tanks, but state and local rules may apply (EPA). The contractor can say what the state requires.
What efficiency is being bought? ENERGY STAR boilers start at 90% AFUE for gas and 87% for oil. Certified oil furnaces are up to 4% more efficient than baseline models.
Is a heat pump on the table? ENERGY STAR lists switching from oil to heat pumps as a way to lower energy bills.
Before committing to one fuel for the long haul, a renewable vs fossil fuel cost comparison adds useful long-range context.
Conclusion
At EIA's Q1 2026 national averages, gas delivered heat for less than half the cost of oil per million Btu. Local prices and equipment efficiency change the gap. Oil needs a tank. Gas needs a main. Either way, oil heat vs gas heat comes down to cost, upkeep, and safety, plus the same electrical needs.
A practical next step is simple. Redo the per-million-Btu calculation with real bills. Then copy the amps off the burner, blower, and pump rating plates before planning backup.
For 120V heating parts, compare the EcoFlow TITAN 5000 Classic. For 240V pumps or burners, compare the EcoFlow TITAN 5000.
FAQs
Is oil heat or gas heat cheaper?
At EIA's Q1 2026 national averages, gas was cheaper. It cost about $15.84 per million Btu delivered at 90% AFUE, versus about $34.86 for oil at 87% AFUE. Local prices, fixed charges, and delivery terms can change that gap in any given area.
Does oil heat work during a power outage?
No. An oil burner needs electricity for its motor, igniter, and control. Any blower or circulator pump needs power too. Stored fuel cannot run these parts alone, so heat stops in a blackout unless backup power keeps the electrical parts running.
Is an oil-filled heater the same as oil heat?
No. An oil-filled radiator is a plug-in electric space heater. The oil sealed inside only holds and spreads heat from the heating element. It never burns, and it is not related to the heating oil that fuels a home boiler or furnace.
How many Btu are in a gallon of heating oil?
EIA lists 138,500 Btu per gallon of heating oil. Natural gas holds about 1,036 Btu per cubic foot, so 1 Mcf is roughly 1.036 million Btu. These figures let homeowners compare the two fuels on the same heat basis, by price per million Btu.
Can a home battery replace an oil or gas furnace?
No. A battery can run the electrical parts of a furnace or boiler during an outage, such as the burner motor, blower, or pump. The heat itself still comes from fuel in the tank or line, and the equipment must be working normally.
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