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Ottawa Water heaters Checked Nov 2026
Hot Water Tank Rental Cost in Ottawa (2026): Rent, Buy or Buy Out?
What the rental companies charge Ottawa homeowners in 2026, what the same tank costs to buy and install in Ottawa, how buyouts work, and your rights at the door.
Short version: Renting a gas water heater in Ottawa costs about $25.87 to $40.87 a month plus HST in 2026 (Enercare rates for 40-50 gal conventional and power vent tanks). Buying the same tank installed in Ottawa runs about $1,800 to $4,000. Over ten years of renting, a power vent tank costs roughly $6,600 with HST at a 3.9% yearly increase.
Rent or buy in Ottawa: quick calculator
Who rents water heaters in Ottawa
- Enercare and Reliance Home Comfort both rent water heaters in Ottawa, on the same province-wide rate lists they use elsewhere in Ontario. Reliance has an Ottawa returns page for rental tanks.
- Local plumbers: John The Plumber advertises Ottawa water heater rentals typically costing $35 to $60 plus HST a month. Hot Water Ottawa advertises buyouts at any time without penalty.
- Lease-to-own: Enbridge Sustain offers lease-to-own, typically over 15 years, across Ontario.
Ottawa has no city or utility water heater rental program that we could find.
2026 rental rates vs buying in Ottawa
| Type | Enercare 2026 (plus HST) | Reliance 2026 “starting at” | Buy installed in Ottawa |
|---|---|---|---|
| Conventional gas, 40 gal | $25.87/mo | ~$25-$28/mo | $1,800-$3,200 |
| Conventional gas, 50 gal | $27.58/mo | ~$26-$31/mo | $1,800-$3,200 |
| Power vent gas, 40 gal | $38.01/mo | ~$39-$44/mo | $2,400-$4,000 |
| Power vent gas, 50 gal | $40.87/mo | ~$42-$47/mo | $2,400-$4,000 |
| Electric, 40 gal | $19.29/mo | ~$20-$23/mo | $1,900-$4,000 |
| Tankless gas (Rinnai RX160 class) | $52.17/mo | $44.99-$47.90/mo | $3,500-$5,500 |
Rental rates: Enercare rate table (2026, plus HST; unlisted tanks up to 3.93% over 2025) and the Reliance Ontario Water Heater Pricing Guide (2026). Both apply across Ontario, Ottawa included. Purchase prices: Ottawa price pages from AirZone HVAC (Aug 2026) and Hot Water Ottawa (Aug 2026); Mr. Rooter Ottawa lists basic installation of a supplied tank from $1,350 plus tax (May 2025).
Getting out of a rental: buyouts and returns
If you rent and want out, you either buy the tank or return it. Enercare publishes a 2026 buyout table by age. For a tank under a year old it lists $1,804 (conventional 40 gal), $1,904 (conventional 50), $2,430 (power vent 40) and $2,483 (power vent 50), dropping every year after that. Reliance says its buyout amount is based on the age of the unit.
Neither company publishes a current removal or return fee, so ask before you book a replacement, and read the termination section of your agreement. If you replace a rental tank with one you own, the old tank goes back to the rental company, not to the dump.
Your rights in Ontario
- Since March 1, 2018, a company cannot sell or rent you a water heater at your door unless you invited them for that purpose. A contract made in breach of that rule is void. Ontario: door-to-door sales and home service contracts
- Contracts signed in your home have a cooling-off period of at least 10 days from when you receive your written copy, and must disclose overall costs and any cancellation fees. Ontario: rules for businesses entering contracts in the home
- If someone at the door says they are from “the gas company” or “the water heater program,” you do not have to let them in.
Before you decide
- Find your current monthly charge on your gas or rental bill and the age of the tank (on the rating plate).
- Ask the rental company for your buyout price in writing.
- Get one or two installed quotes for the tank you would buy.
- Run the numbers above, or use our rent vs buy calculator and the full Ontario rent or buy guide.
Water heater rental in other citiesToronto, Whitby, Aurora and the GTA
Questions people ask
How much does it cost to rent a hot water tank in Ottawa?
Enercare’s 2026 rates are $25.87 a month for a 40 gal conventional gas tank, $27.58 for 50 gal, $38.01 for a 40 gal power vent and $40.87 for 50 gal, plus HST. Reliance lists similar “starting at” ranges.
How much is a new water heater installed in Ottawa?
Ottawa price pages list about $1,800 to $3,200 for a conventional gas tank, $2,400 to $4,000 for a 50 gal power vent, and $3,500 to $5,500 for a tankless heater.
Is it cheaper to rent or buy a water heater in Ottawa?
Over ten years, renting a 50 gal power vent tank at Enercare’s 2026 rate comes to roughly $6,600 with HST at a 3.9% yearly increase, against $2,400 to $4,000 to buy one installed. Renting includes repairs; owning does not.
How do I get out of a water heater rental in Ottawa?
Buy the tank out or return it. Enercare publishes a 2026 buyout table by age; a 50 gal power vent under a year old is $2,483. Ask your provider for your buyout and any removal fee in writing.
Can someone sell me a water heater at my door?
No. Since March 1, 2018, door-to-door sales of water heaters are banned in Ontario unless you invited the company for that purpose, and a contract that breaks the rule is void.
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Rental rates from Enercare and Reliance published 2026 rate pages; purchase prices from AirZone HVAC, Hot Water Ottawa and Mr. Rooter Ottawa; consumer rules from ontario.ca. Checked November 2026. Ranges, not quotes.
