For most Canadian homes heated with oil, switching to a heat pump lowers annual heating costs, cuts emissions sharply and removes the risks of an aging oil tank. Heating oil is one of the most expensive ways to heat a home, so even in cold regions a heat pump usually delivers substantial savings. The main decisions are which type of heat pump fits your home, what to do about backup heat, and how to handle the tank.
Key takeaways
- Heat from oil typically costs two to four times more per unit than heat from a heat pump, depending on prices.
- Ducted homes can use a central heat pump; homes with boilers or no ducts often use ductless mini-splits or air-to-water heat pumps.
- Removing an old oil tank prevents leaks and can affect home insurance; plan for it.
- Federal oil-to-heat-pump funding has stopped accepting new applications, so check provincial and utility programs.
- Many households keep a backup heat source at first, then remove the oil system later.
Why oil heat is worth replacing
Oil-heated homes are most common in Atlantic Canada, parts of Quebec and rural areas without gas service. Reasons owners switch:
- Cost: At roughly $1.40–$1.80 per litre, an oil furnace or boiler delivers heat at very roughly 15–20¢ per kWh. A cold-climate heat pump using electricity at 12–18¢ per kWh with a seasonal efficiency of around 2.5 delivers heat at roughly 5–7¢ per kWh. These are illustrative numbers; your prices will differ.
- Price swings: Oil prices can jump sharply with world events, making winter budgets unpredictable.
- Emissions: Oil is one of the most carbon-intensive home heating fuels. The federal consumer carbon charge on fuels was set to zero in April 2025, but the emissions themselves remain.
- Tank risks: Old tanks can corrode and leak, causing expensive soil contamination. Many insurers have rules about tank age and type.
- Cooling: A heat pump adds efficient air conditioning.
Your heat pump options
| Home type | Common heat pump choice | Approx. installed cost |
|---|---|---|
| Ducted oil furnace | Ducted cold-climate air-source heat pump | $10,000–$20,000 |
| Hot water boiler with radiators or baseboards | Ductless mini-splits, or air-to-water heat pump | $5,000–$20,000+ |
| Small or open-plan home | One or two ductless heads | $4,000–$10,000 |
| Rural property with land, high heating load | Ground-source (geothermal) | $30,000–$60,000+ |
All costs are approximate and vary by home, region and electrical needs. Our posts on ductless mini-splits and geothermal heat pump costs go deeper on those options.
A note on boilers and radiators
Homes with hot water heat present a choice. Air-to-water heat pumps can feed existing radiators but work best with low water temperatures, so older cast-iron radiators sized for very hot water may need supplementing. Many owners start with mini-splits on the main floor, keep the boiler for the coldest days, and revisit once the boiler wears out.
What to do with the oil tank
Plan for the tank from the start:
- Decide timing. If you keep oil as backup at first, the tank stays. If you go fully electric, schedule removal with the installation.
- Hire a qualified contractor to pump out remaining oil, disconnect lines and remove the tank. Requirements vary by province.
- Get documentation. Keep proof of proper removal for your insurer and for a future sale.
- Budget roughly $1,500–$4,000 for typical indoor or above-ground tank removal; buried tanks and any contamination cost more.
Leftover oil can sometimes be used up before removal, or purchased back by some suppliers. Ask about this when timing your switch.
Backup heat: keep oil or go all-electric?
Keeping oil as backup gives peace of mind during your first winter and avoids tank removal costs immediately, but you keep maintaining a second system and may pay minimum delivery fees.
Going all-electric with built-in electric backup strips or existing baseboards simplifies your home and lets you remove the tank. With a properly sized cold-climate heat pump, backup heat runs only a small share of the year in much of Atlantic Canada. See do heat pumps really work at -30°C.
Funding and programs
The federal Canada Greener Homes Grant closed to new applicants in 2024, and the federal Oil to Heat Pump Affordability program has also stopped accepting new applications. Provincial governments, utilities and low-income energy programs may still offer support, and these change frequently. Search current programs by address with our rebate finder, and review your provincial guide for local context, such as the Nova Scotia guide.
Planning your switch
- Get an energy evaluation if possible, to identify air leaks and insulation gaps.
- Fix the biggest envelope problems so you can buy a smaller system.
- Get a proper load calculation; see why sizing matters.
- Check your electrical panel capacity; older 100-amp panels may need an upgrade.
- Compare quotes that specify cold-climate models, backup heat and tank plans.
- Schedule work for spring or summer when contractors are less busy and you're not relying on heat.
Frequently asked questions
How much can I save switching from oil to a heat pump?
Savings depend on oil and electricity prices, your home's heating needs and the system you choose. Many households see their heating costs fall by roughly half or more, but get an estimate based on your own bills and quotes.
Can a heat pump fully replace an oil boiler?
Yes, in many homes, using ducted, ductless or air-to-water heat pumps. Homes with high-temperature radiators may need extra heat pump capacity, radiator upgrades or backup heat for the coldest days.
Do I have to remove my oil tank right away?
Not necessarily, if you're keeping oil as backup and the tank is in good condition. Once you stop using oil, removing the tank properly reduces leak risk and often matters for insurance and resale.
The bottom line
Moving from oil to a heat pump is one of the highest-impact upgrades a Canadian homeowner can make, cutting costs, emissions and tank risks in one step. Pick the heat pump type that fits your home's heating system, plan backup heat and tank removal, and check current programs before you sign. Learn more on our heat pumps and geothermal page.
Sundamentals is an independent, non-profit education platform. Program details and prices change often — check current programs for your address in our rebate finder.