Rent or buy a water heater, furnace or heat pump? Ontario rental contract traps

Renting a water heater, furnace, air conditioner or heat pump in Ontario spreads the cost into a monthly fee and usually moves repairs to the rental company, but over the life of the equipment renting almost always costs more than buying, and the expensive parts of the deal are often in the fine print: annual rate increases, buy-out schedules, removal and return charges, and long or self-renewing terms. Ontario's Consumer Protection Act, 2002 gives you specific protections, including a 10-day cooling-off period for contracts signed at home and a ban on unsolicited door-to-door contracts for these products since 1 March 2018, and the Homeowner Protection Act, 2024 stopped businesses registering notices of security interest on title for consumer goods such as water heaters and furnaces. Before signing, add up every payment over the expected life and compare it with buying.

This guide is part of HVAC problems and official sources. It is general information, not legal advice. Prices are illustrative.

How a typical rental contract is built

Clause	What it does	What to check
Monthly rental fee	Covers use of the equipment	Is tax extra? Does the fee rise each year, and by how much?
Term	Minimum period or open-ended	Can you end it at any time? With what notice?
Maintenance and repairs	Provider repairs or replaces the unit	Exclusions (damage, access, water quality)
Buy-out schedule	Price to buy the unit at each age	Is the schedule in the contract? Does it fall to a low amount?
Removal or return	What happens when you leave	Who removes the unit; fees; return of the tank to the provider
Transfer on sale	Whether a buyer must take over the rental	Your real estate agent and lawyer will ask
Security	Any lien or registration	Consumer NOSIs on title are now banned in Ontario; see below

Worked example: renting versus buying a water heater

Illustrative figures for a 40-gallon gas tank water heater with an expected life of 12 years.

Rental. $32 a month in year one, rising 3.5% a year. Total over 12 years ≈ $32 × 12 × 14.60 ≈ $5,607, plus HST 13% ≈ $6,336.

Purchase. Installed price $2,200 plus HST 13% = $2,486. Allow $600 over 12 years for repairs (anode, thermocouple or valve). Total ≈ $3,086.

Renting costs about $3,250 more in this illustration. Renting wins only if the unit fails very early and the provider replaces it at no charge, or if you cannot pay the upfront cost and the alternative is a high-interest loan. The HVAC financing calculator shows what borrowing $2,486 would cost: at an illustrative 9% over 3 years, about $79 a month and $360 of interest.

Worked example: heat pump or furnace rental

Illustrative: a furnace and AC or heat pump rental at $139 a month, rising 3% a year, for a 15-year term. Total ≈ $139 × 12 × 18.60 ≈ $31,025 before tax. Buying a comparable system for $14,000 and financing it at 8.99% over 7 years costs about $18,920 in total, after which payments stop. Even including a maintenance plan of $250 a year for 15 years ($3,750), buying comes out far ahead.

Your rights under Ontario consumer law

Cooling-off. A direct agreement (signed somewhere other than the supplier's place of business, such as your home) can be cancelled for any reason within 10 days after you receive the written copy. If you never received a copy meeting the legal requirements, the cancellation window can extend to one year.
Door-to-door ban. Since 1 March 2018 suppliers may not solicit you at home or sign a direct agreement there for furnaces, air conditioners, air cleaners and purifiers, water heaters, water treatment devices, water filters and softeners, duct cleaning or combinations of these, unless you first contacted them and asked them to come for that purpose. Agreements made in breach are void. See the door-to-door guide.
No more consumer NOSIs. The Homeowner Protection Act, 2024 bans registering a notice of security interest on title for consumer goods, and deems existing consumer NOSIs expired. Your contract still exists, however. See notices of security interest.

The Consumer Protection Act, 2023 was passed to replace the 2002 Act, but e-Laws still showed it as not yet in force when we checked in October 2026; the 2002 Act's rules above apply until it is proclaimed.

Ending a rental or switching providers

Find your contract and read the termination, buy-out and removal clauses.
Ask the current provider in writing for the buy-out price and the removal procedure.
If a new company offers to "take care of" the old rental, ask who pays any buy-out or return charge and get it in writing. Some switches leave the homeowner billed by both companies.
If you replace a rented water heater with one you buy, arrange the return of the old tank as the contract requires, or the provider may keep charging rent or charge for an unreturned tank.
Keep records of all calls and letters.

When renting can make sense

You need hot water or heat today and cannot pay or borrow at a reasonable rate.
You expect to sell soon and the buyer will accept the rental (ask your agent; many buyers prefer owned equipment).
The contract allows ending at any time with only a modest, published buy-out.

Even then, compare against financing options and against buying a basic unit.

FAQ

Can I just buy out my rented water heater?

Usually, at the price in the buy-out schedule or quoted by the provider. Compare it with a new installation; an old tank near the end of its life may not be worth buying.

Do I have to rent from my gas utility's partner?

No. Water heaters and HVAC equipment are sold and rented by many businesses; you can buy from any qualified installer.

Is the rental fee taxed?

Yes, HST applies to each rental payment in Ontario.

Sources

Government of Ontario — consumer protection, door-to-door rules and the Homeowner Protection Act
Ontario e-Laws — Consumer Protection Act, 2002 and O. Reg. 17/05
Ontario Energy Board — energy consumer information
Canadian Anti-Fraud Centre — reporting scams
Competition Bureau Canada — misleading marketing complaints