Heating Oil vs. Propane: Which Is Right for Your Maine Home?

If you're building a new home, switching heating systems, or just curious whether you're using the right fuel, you've probably asked the question every Maine homeowner eventually asks: heating oil or propane? Both are widely used across Biddeford, Saco, Old Orchard Beach, and the rest of southern Maine, and both can heat a home reliably through a New England winter. The right choice depends on your home's setup, your appliances, and what matters most to you — cost predictability, efficiency, or flexibility.

This guide breaks down the real differences so you can make an informed decision, whether you're sticking with what you have or considering a change.

The Short Answer

• Heating oil tends to have a higher heat output per gallon and works well in homes already set up with an oil furnace or boiler, and it doesn't require additional gas lines.
• Propane is more versatile — it can power your furnace, water heater, stove, dryer, and even a backup generator or fireplace — but requires appropriate equipment and tank setup.

Neither fuel is universally "better." The right one depends on your home's existing equipment, what other appliances you want to run, and your priorities.

Heating Oil: Strengths and Considerations

Heating oil has been the backbone of home heating across Maine for generations, and it's not hard to see why:

• High energy content. Heating oil delivers more BTUs per gallon than propane, so oil furnaces often need less fuel volume to produce the same amount of heat.
• No gas lines required. Oil is stored on-site in a tank and delivered by truck, so you don't need utility gas infrastructure.
• Widely available local service. Oil heat has deep roots in New England, meaning strong local delivery networks and experienced technicians.
• Modern equipment is efficient. Today's oil furnaces and boilers are significantly more efficient than older models, especially with regular maintenance.

The main considerations: heating oil is used almost exclusively for space and water heating (not typically for cooking or clothes drying), and, like any delivered fuel, pricing can fluctuate with market conditions. Heating oil delivery

Propane: Strengths and Considerations

Propane has grown in popularity because of its flexibility beyond just heating:

• Multi-purpose fuel. The same propane tank can supply your furnace, water heater, range, clothes dryer, fireplace, and a backup generator.
• Clean-burning. Propane burns cleanly, which some homeowners prefer for indoor air quality and appliance longevity.
• Works well off the gas grid. Like oil, propane is stored on-site, so it's a strong option for homes without access to natural gas lines.
• Tank setup required. Propane requires an above-ground or buried tank sized to your household's needs, along with any equipment conversions if you're switching from another fuel.

For homeowners who want one fuel source to run several major appliances — not just heat — propane is often the more convenient choice. Propane delivery

Cost Comparison: How to Think About It

Direct price-per-gallon comparisons between oil and propane can be misleading, because the two fuels aren't burned at the same rate for the same heat output. What actually matters for your budget is the cost per unit of heat delivered, which depends on:

• Current market prices for each fuel (these shift throughout the year)
• The efficiency of your specific furnace or boiler
• Your home's insulation, size, and heating demand
• Whether you're also using the fuel for water heating, cooking, or drying
• Heat output per gallon — Heating oil: higher. Propane: lower.
• Common uses — Heating oil: space & water heating. Propane: heating, cooking, drying, generators.
• Infrastructure — Both: on-site tank with truck delivery.
• Equipment — Heating oil: oil furnace/boiler. Propane: propane furnace/boiler plus compatible appliances.
• Price volatility — Both: market-based.

Because pricing shifts, the best way to compare your actual costs is to ask a local provider like Beaupre Fuels for current per-gallon pricing and, if you're considering a switch, an estimate based on your home's size and usage. Get a pricing estimate

Which One Makes Sense for Your Home?

A few questions can help point you in the right direction:

1. What do you already have installed? If your home has a working oil furnace, switching to propane means new equipment costs, not just a fuel change. The reverse is also true.
2. Do you want to power more than just heat? If you're interested in a propane range, dryer, or whole-home generator, a propane tank can serve all of them.
3. Do you have space for a tank? Both fuels require on-site storage; propane tanks are often sized differently and may be installed above or below ground depending on local codes and preference.
4. How do you feel about price monitoring? Both fuels are subject to market pricing, but many providers offer budget or pre-buy plans for either fuel to help smooth out costs.

If you're not sure which setup you have or which would work better for your household, a local technician can walk your property and give you a straight answer.

Switching Fuels: What to Expect

If you decide to switch from oil to propane (or vice versa), expect the process to involve:

• An equipment assessment to determine what conversion or replacement is needed
• Installation of new appliances or a converted furnace/boiler
• Tank setup, sizing, and any required permitting
• Scheduling your first delivery and setting up an ongoing plan

Switching isn't something to decide on a whim in the middle of winter — it's best planned during the off-season with a provider who can walk you through equipment and cost expectations.

FAQ

Is propane cheaper than heating oil in Maine?

It depends on current market prices and your equipment's efficiency. Because propane and oil aren't burned at the same rate for equivalent heat, the best comparison is cost per unit of heat delivered, not price per gallon alone.

Can I switch from oil heat to propane without replacing my furnace?

Generally no — oil and propane furnaces use different burners and components, so switching fuels typically requires new or converted equipment.

Which fuel is better for a backup generator?

Propane is commonly used for whole-home standby generators because it stores indefinitely without degrading, unlike some other fuels.

Do both heating oil and propane require a storage tank?

Yes. Both are delivered fuels stored on-site, whether in an indoor/outdoor oil tank or an above-ground or buried propane tank.

How do I get a price estimate for switching fuels in southern Maine?

A local provider can visit your home, assess your current equipment, and provide an estimate for conversion costs and ongoing fuel pricing based on your household's size and usage.

Conclusion

Both heating oil and propane can keep a southern Maine home warm and comfortable through the winter — the right choice comes down to your existing equipment, how many appliances you want the fuel to power, and your household's priorities around cost and flexibility.

Beaupre Fuels has delivered both heating oil and propane to Biddeford, Saco, Old Orchard Beach, Scarborough, Wells, Kennebunk, Arundel, and Lyman since 1947. Call 207-282-9022 or [INTERNAL LINK: /contact "contact us"] for a straightforward comparison based on your home.