Water Heater Rebates in Ontario

In short

Ontario does not rebate a like-for-like gas or electric tank replacement. The Home Renovation Savings Program covers water-heating efficiency measures instead, including drain-water heat recovery and heat pump water heaters, with amounts listed on the program page. Rented water heaters have nothing to claim, since the rental company owns the equipment.

How much you can get

Like-for-like gas or electric tank replacement No rebate
Heat pump water heater See the program page
Drain-water heat recovery unit See the program page
Rented water heater of any type Nothing to claim — you do not own it
Gas tankless water heater No Ontario rebate we can confirm

Who qualifies

You own the water heater outright — purchased and installed, not supplied under a rental agreement.
The measure is one the program actually lists, which currently means efficiency upgrades rather than replacements in kind.
The equipment is a qualifying model installed by a participating contractor, with an itemized invoice.
The property meets the same eligibility rules that apply to the rest of the program.
Amounts are confirmed on the program page at the time of installation, since measure lists are revised between seasons.

Hot water is the second-largest energy use in most Ontario houses, so the absence of a rebate on the common job surprises people. The programs are aimed at changing how water is heated, not at subsidising the replacement cycle.

What is and is not covered

Covered: measures that reduce the energy used to make hot water. Not covered: a new tank in place of an old tank, whatever its efficiency label says. That line explains almost every question we get on this subject.

Replacing a failed tank costs $1,200–$2,500 installed for a straightforward swap, and no program reduces that. Budget accordingly rather than delaying a leaking tank while you hunt for money that is not there.

Heat pump water heaters: the one with rebate potential

A heat pump water heater moves heat out of the surrounding air into the tank instead of generating it with an element, which is why it appears on efficiency measure lists. It also behaves differently in a basement, and that is worth understanding before you buy one.

It cools and dehumidifies the room it stands in — pleasant in a damp Burlington basement in July, less so in an unheated one in January.
It needs air volume around it, so a sealed mechanical closet is usually the wrong location.
It needs a condensate drain, exactly like a high-efficiency furnace does.
It typically needs a dedicated 240-volt circuit, which means panel capacity has to be checked.
It runs taller than a standard tank, so measure the ceiling height for anode access before ordering.

Rented tanks have nothing to claim

Rebates go to whoever buys qualifying equipment. Under a rental agreement the rental company owns the tank, so there is no purchase to attach a claim to and no invoice in your name.

That is also the moment to look at the arithmetic, because rental economics rarely favour long-term customers. Renting at $25–$45 a month works out to roughly $4,500–$8,000 over a 15-year tank life, against $1,500–$3,000 to buy the same class of unit outright. Our rent or buy answer works through the exit costs, which are the part people miss.

Pulling the gas tank changes your furnace's venting

In older houses the gas water heater and a mid-efficiency furnace often shared one chimney. Remove the water heater from that flue — by going electric, heat pump or tankless — and the chimney is suddenly oversized for whatever is left on it, which risks condensation and poor draft.

The fix is usually a properly sized liner, commonly $400–$900, and it is a code and safety matter rather than an optional extra. Any quote that changes your water heater's fuel or venting should address the chimney explicitly.

Tankless and the rebate question

Gas tankless units are efficient and long-lived, and a conversion typically runs $3,500–$6,500. We are not aware of a current Ontario rebate that pays for one, and we will not print an amount we cannot verify — check the program measure list before counting on anything. Budget instead for what the conversion actually involves, which usually includes upsizing the gas line that was sized for the old tank.

For a straight replacement, a heat pump water heater assessment, or a second opinion on a rental buyout, see our water heater service or get in touch and we will give you the real options for your basement.

How ZK Mechanical helps

Tell you plainly when no rebate exists, so a leaking tank gets replaced instead of waiting.
Check the space, drainage and electrical capacity before recommending a heat pump water heater.
Address the chimney and venting when a fuel change leaves the flue oversized.
Work out the rental buyout arithmetic with you, including what the rental company will charge to remove its equipment.
File a claim on any measure that genuinely qualifies, and skip the ones that do not.

Frequently asked questions

Is there a rebate for replacing my hot water tank?

Not for a like-for-like replacement, gas or electric. Provincial money is aimed at efficiency measures such as heat pump water heaters and drain-water heat recovery, with amounts published on the program page.

Can I claim a rebate on a rented water heater?

No. The rental company owns the equipment, so there is no purchase in your name to claim against. If you want access to any future incentive, you need to own the unit.

Does a drain-water heat recovery unit make sense in my house?

It recovers heat from shower drain water, so the payback depends on how much showering the household does and whether there is a vertical drain stack it can be fitted to. In a bungalow with a mostly horizontal drain run it is often impractical. Have the stack looked at before you count on the measure.

Will a heat pump water heater cool my basement too much?

It removes heat from the surrounding air, which is welcome in a humid summer basement and unwelcome in an unheated one in winter. Location matters more with this appliance than with any other water heater.

How long should a water heater last?

Most tanks give 8 to 12 years in this region's water, and hard water shortens that. Rusty hot water, a weeping fitting at the base, or a tank that has stopped recovering between showers are the signs worth acting on early.

Official sources

All Ontario HVAC rebates Furnace rebates in Ontario Home Renovation Savings Program Water heater service All rebate programs