Blog > Heating a Home Off the Gas Grid in Eastern Ontario: What Buyers Need to Check
Heating a Home Off the Gas Grid in Eastern Ontario: What Buyers Need to Check
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Short answer
Most homes in Ottawa run on natural gas. Once you move out past the suburbs, into Kemptville, North Grenville, Merrickville, Athens, Brockville and the townships in between, a lot of them do not. You are looking at oil, propane, electric baseboard, a heat pump, wood, or some combination. None of those are a problem on their own. What matters is the condition and age of the equipment, who owns the tank, what it has actually cost to run, and whether an insurer will write a policy on it. All four of those are answerable while your conditions are still in place, and all four get harder to deal with after closing.
Why this comes up the moment you look outside Ottawa
Natural gas follows population density. Inside Ottawa and the closer suburbs it is usually just there, and buyers stop thinking about heat entirely. Drive forty minutes down the 416 and the picture changes. Gas lines run along some roads and not others, and two houses on the same concession can have completely different heating setups.
That catches people out in a specific way. Buyers move from a gas house in the city to a rural or small-town house, keep the same mental number for winter heating, and then get a delivery bill in January that does not look anything like the gas bill they were used to. The system itself is rarely the problem. The surprise is.
So treat heat the same way you would treat a well or a septic bed. It is a system that came with the house, it has a service history and a remaining life, and it is worth ten minutes of questions before you firm up. If you want the wider picture on rural systems, the same logic applies to wells and septic systems.
Oil heat, and the tank that comes with it
Oil is still common in older Eastern Ontario houses. The furnace or boiler is only half of it. The tank is the part that tends to drive the conversation.
A few things are worth knowing before you form an opinion about a tank you have just seen in a basement.
There is no age at which an approved aboveground tank legally has to be replaced. The Technical Standards and Safety Authority, which regulates fuel oil in Ontario, is clear that an approved aboveground tank does not have a mandatory replacement age as long as it is not leaking, and that a tank counts as approved if it was installed to the code in effect at the time. A tank sitting in a basement is also not treated as an underground tank, whatever it looks like.
What usually forces the decision is not the regulator. It is the insurer. Insurers set their own underwriting rules on tank age, construction and location, and they apply them when a new policy is written, which is exactly when you are buying. That is a question for your broker during your condition period, not a question for the home inspector. There is more on what insurers ask, and when, in the piece on insuring an older or rural home in Eastern Ontario.
Buried tanks are a different conversation. Ontario regulations require an unused underground storage tank to be removed, and that work has to go through a TSSA-registered petroleum contractor, with an environmental assessment report submitted. TSSA can grant a variance to leave a tank in place in some circumstances, but that is an application, not an assumption. If anyone mentions an old buried tank in the yard, or you see a filler pipe outside with no tank attached to it, stop and get that answered in writing before you firm up. A leak that goes into soil becomes an environmental cleanup, and cleanups are not small.
Two smaller points. Anyone working on fuel oil equipment in Ontario has to be registered with TSSA, and underground tank work requires a certified petroleum equipment mechanic, so ask to see who did the last service rather than taking a verbal answer. And if a spill is ever discovered, the province wants it reported to the Spills Action Centre at 1-866-663-8477.
Propane: ask who owns the tank
Propane behaves like oil in some ways and like gas in others. It burns clean, the appliances are familiar, and the tank usually sits outside rather than in the basement.
The question people forget to ask is ownership. In a lot of installations the tank belongs to the propane supplier and the homeowner rents it. Sometimes the homeowner owns it outright. That single fact shapes what happens after closing: whether you can shop the price around, what the supplier expects when the account changes hands, and whether anything has to be swapped out. Ask early, ask in writing, and ask the seller to point you at the actual supply agreement rather than describing it from memory.
Also ask how the account was billed. Some households buy on a fixed contract, some on delivery price, some on a budget plan that smooths the winter out. A seller telling you what they paid per month is much less useful than the last twelve months of delivery records.
Electric baseboard, and where a heat pump changes the math
Electric baseboard is simple and almost maintenance free. No combustion, no tank, no chimney, no annual service call. It also has no ductwork behind it, which matters more than people expect. A baseboard house cannot simply have central air added later, and any future upgrade has to account for that.
This is where cold climate heat pumps come in, and they have genuinely changed what is possible in this part of the province. A ductless system can be added to a baseboard house without tearing it apart, and it heats as well as cools.
There is provincial money available for this. Ontario’s Home Renovation Savings Program, delivered through Save on Energy, lists rebates of up to $7,500 for a qualifying cold climate air source heat pump and up to $12,000 for a ground source system, with the actual amount based on the size of the system installed and the equipment required to be on Natural Resources Canada’s list of qualified products. Programs change, so confirm the current terms and eligibility directly with Save on Energy before you count on a number. If a heat pump is part of your plan for the house, it is worth pricing during the condition period rather than after you own it.
Wood, as a main source or a backup
Plenty of rural houses here have a wood stove, an insert or an outdoor wood furnace, either as the main heat or as the thing that carries the house through an ice storm. Both are legitimate. They come with one specific requirement.
Most Ontario insurers ask for a WETT inspection report on a wood burning appliance when a new policy is written. WETT Inc. is a non profit training and education association and the national registrar for the program, not a government regulator, and the inspection is done by a WETT certified professional who checks the appliance, the clearances and the chimney against current standards. Book it early. Good inspectors fill up as soon as the weather turns, and this is the single most common reason a rural file gets tight in the last week before conditions come off.
If the stove was installed by the current owner rather than by a professional, ask for whatever paperwork exists. If there is none, assume the inspection will find something.
How the four compare
| System | How it reaches the house | What to check before you firm up |
|---|---|---|
| Oil | Delivered, stored in a tank you own | Tank age, type and location, any buried tank history, furnace age and last service, and whether your insurer will write it |
| Propane | Delivered, stored in a tank often rented from the supplier | Who owns the tank, what the supply agreement says, how the account transfers, and twelve months of delivery records |
| Electric baseboard | Already there, no tank and no delivery | Twelve months of hydro bills, panel capacity, insulation and windows, and the absence of ductwork if you want cooling later |
| Heat pump | Electric, usually paired with a backup source | Age and model, whether it is a cold climate unit, what the backup heat is, and any remaining warranty |
| Wood | You buy, split and store it yourself | A WETT inspection, installation paperwork, chimney condition, and whether your insurer treats it as primary or secondary heat |
Most houses out here run two of these, not one. A propane furnace with a wood stove, or baseboard with a heat pump, is a normal setup rather than a red flag.
What to line up while your conditions are still in place
Before your conditions come off
- Ask the seller for the last twelve months of fuel or hydro records, not a monthly average from memory.
- Get the age and last service date of the furnace, boiler or heat pump, with the service company name.
- If there is an oil tank, record its type, location and any date stamped on it, and ask directly whether a tank was ever buried on the property.
- If there is propane, find out who owns the tank and ask for the supply agreement.
- If there is a wood burning appliance, book the WETT inspection the day your offer is accepted.
- Send all of it to your insurance broker and get confirmation that they will write the policy, in writing, before you waive anything.
- If you plan to change the system after closing, price it now, while you can still walk.
None of this needs to slow a deal down. It is a handful of questions asked in the first two days of a condition period rather than the last. The wider sequence is laid out in the step by step guide to buying a resale home in Ontario, and if you are shopping through the fall, timing is covered in what the season actually changes for buyers.
A second read on a specific house
Heating is one of the few things about a rural or small town house that you can fully understand before you commit, and it is one of the few that is genuinely awkward to fix afterward. If you are looking at a particular property between Brockville and Ottawa and you are not sure what you are inheriting, send me the address.
I am happy to walk through what a specific house is running on, what to ask the seller, and who to call locally. No obligation to list or to sign anything.
Sources and currency: fuel oil tank rules are drawn from the Technical Standards and Safety Authority’s published fuels guidance for Ontario. Heat pump rebate amounts are as listed by Save on Energy under Ontario’s Home Renovation Savings Program and are subject to change, with equipment eligibility set by Natural Resources Canada. Wood burning inspection information reflects WETT Inc., the national registrar for the WETT program. This article is general information for Eastern Ontario buyers and is not legal, insurance, engineering or tax advice. Confirm current requirements with the relevant authority, your insurance broker and a licensed contractor for the specific property. Reviewed September 2026.