Rent vs Own a Water Heater: The 15-Year Math

How do renting and owning compare, side by side?

	Renting	Owning
Monthly cost	$35–$55, every month, indefinitely — and rates typically rise over the term	$0 after purchase
15-year total	$6,300–$9,900 at today's rates, more with increases	One purchase — a quality tank installed typically runs a few thousand dollars — plus minor maintenance
Ownership	Never yours, at any point, no matter how much you've paid	Yours from day one
Warranty & service	Repairs are covered — that's the rental's real selling point — but a replacement tank can restart your contract term and buyout schedule	Manufacturer warranty (commonly 6–10 years on tanks); you choose repair vs replace, and a replacement is your asset
At a house sale	The contract transfers to the buyer or must be bought out at closing; a Notice of Security Interest may be on title	Nothing to transfer, nothing on title — the heater is simply part of the house
Who profits	The rental company — a tank paid off in a few years keeps billing for decades	You — every year past the payoff point is hot water at energy cost only

Ranges are typical Ontario figures for comparison. Your rental rate is on your bill; your buyout is in your contract's schedule — see how the buyout price works.

A note on the ads: new water heater rentals are currently advertised from as low as $13–$16 a month. That's the starting price on a new long-term contract — it never buys ownership, and the rate typically rises over the term. Cheap to start is not the same as cheap.

Is there any case where renting makes sense?

Honestly — a narrow one. If you are certain you're selling within a year or two and the tank is young, renting's included service can be the path of least resistance — with two caveats. First, the rental doesn't vanish at sale: it transfers to your buyer or gets settled at closing, and some buyers (and their lawyers) push back on assumed contracts, so "it becomes their problem" isn't always clean. Second, if the tank is old, even a short stay can favour exiting: when the buyout has fallen below a year of rent, buying out and owning can cost less than the payments you'd make before you move. The honest rule: renting makes sense mainly when the tank is young and the stay is short. Every other combination favours owning.

What do most homeowners miss in this comparison?

That the rental's 15-year total buys the tank three to five times over — and that "service included" is doing a lot of quiet work in the sales pitch. Water heaters are among the most reliable appliances in a house; the average owned tank needs little beyond an occasional anode rod and a flush. You're not choosing between a payment and a risk. You're choosing between a small payment forever and a fair price once.