Cost Guide
Water Heater Cost Ontario 2026: Prices by Type
How much does it actually cost to buy a water heater in Ontario? Here is the full breakdown for tank, tankless, and heat pump models, with real installed prices, brand comparisons, and the rebates available right now.
Key Takeaways
- An electric tank water heater costs $600 to $1,500 installed. A gas power vent tank runs $2,400 to $3,500 installed.[2][3]
- Gas tankless water heaters cost $2,500 to $5,500 installed, with the unit itself running $900 to $2,200 and installation adding $1,500 to $2,000.[1][6]
- Heat pump water heaters cost $5,800 to $7,500 installed but use 60% to 70% less electricity than a standard electric tank.[9]
- The SaveOnEnergy HRS program offers a $500 rebate for heat pump water heaters.[10]
- Converting from tank to tankless typically adds $1,000 to $2,000 in gas line and venting modifications on top of the unit and install costs.[7]
Water Heater Costs at a Glance
This table shows fully installed costs for the three main water heater types available in Ontario. These prices include the unit, standard installation labour, and permits.[2][3]
| Type | Installed Cost | Lifespan | Best For |
|---|---|---|---|
| Electric tank (40-60 gal) | $600 - $1,500 | 10 - 15 years | Budget installs, no gas line |
| Gas tank, conventional vent | $1,800 - $2,500 | 10 - 15 years | Existing chimney, lower upfront cost |
| Gas tank, power vent (50 gal) | $2,400 - $3,500 | 10 - 15 years | Most common new install in Ontario |
| Gas tankless | $2,500 - $5,500 | 15 - 20+ years | Unlimited hot water, space savings |
| Electric tankless | $1,500 - $3,500 | 15 - 20 years | Point-of-use or small homes |
| Heat pump water heater | $5,800 - $7,500 | 12 - 15 years | Energy savings, eco-conscious homeowners |
A few things worth noting. Conventional vent gas tanks are being phased out as building codes tighten, so most new gas installs are power vent. Electric tankless units struggle to deliver whole-home hot water in Ontario winters, so they are better suited to point-of-use applications like a single bathroom or kitchen sink. For a quick estimate on your specific situation, try our cost calculator.[8]
Tank Water Heaters: The Standard Choice
Tank water heaters remain the most common type in Ontario homes. They store 40 to 60 gallons of pre-heated water and are available in electric and gas models. Replacement is straightforward when you are swapping like for like.[2]
Electric Tank
Electric tanks are the least expensive to purchase and install, starting at around $600 for a 40-gallon model and going up to $1,500 for a 60-gallon unit with better insulation and longer warranty. Installation is simple because there is no venting required. The trade-off is operating cost: Ontario electricity rates make electric tanks more expensive to run than gas, typically $50 to $80 more per month depending on household usage.[3]
Gas Tank (Conventional Vent)
Conventional vent gas tanks use a metal chimney to exhaust combustion gases. They cost $1,800 to $2,500 installed, making them the most affordable gas option. However, Ontario building codes increasingly require power vent or direct vent units for new installations. If you are replacing an existing conventional vent unit with the same type, you can still do so, but the category is shrinking.[8]
Gas Tank (Power Vent)
Power vent models use a fan to push exhaust through PVC pipe out a sidewall, eliminating the need for a chimney. This is the standard for most new gas installations in Ontario, running $2,400 to $3,500 fully installed. The higher cost compared to conventional vent reflects the blower motor, PVC venting materials, and slightly more complex installation. They are more efficient and safer, which is why codes are moving in this direction.[2][5]
Tankless Water Heaters: Cost Breakdown
Tankless (on-demand) water heaters heat water as it flows through the unit, so there is no stored tank of hot water. They cost more upfront but last longer and deliver unlimited hot water. The real question is whether the installed price makes sense for your situation.[1]
Gas Tankless
A gas tankless water heater is the most popular tankless option in Ontario. The unit itself costs $900 to $2,200depending on brand and BTU output. Installation adds $1,500 to $2,000 for standard hookup, bringing the total to $2,500 to $5,500 installed.[1][6]
Condensing gas tankless models (which capture more heat from exhaust) sit at the higher end of that range but deliver better efficiency. Non-condensing models are less expensive but vent at higher temperatures, requiring stainless steel venting instead of PVC.[7]
A real-world example: a Rinnai tankless installation in the Niagara region came in at $4,400, which included the unit, a gas piping redo, and high-efficiency PVC venting.[1]
Electric Tankless
Electric tankless units cost $1,500 to $3,500 installed. They are simpler to install (no gas line or venting needed), but they draw significant electrical current. Most whole-home electric tankless units require a 200-amp panel and dedicated circuits (see our electrical panel upgrade guide if yours needs work). In Ontario, where incoming water temperatures drop to near freezing in winter, electric tankless units may struggle to deliver adequate flow for simultaneous showers. They work best as point-of-use heaters for a single fixture.[6]
Top Tankless Brands in Ontario
| Brand | Popular Models | Unit Price Range | Notes |
|---|---|---|---|
| Navien | NPE-A2 series | $1,200 - $2,200 | Condensing, built-in recirculation pump, very popular with Ontario installers |
| Rinnai | RUR / RU series | $1,000 - $1,800 | Long track record, wide dealer network, non-condensing and condensing options |
| Rheem | RTGH series | $900 - $1,600 | Good value, available at Home Depot, condensing models available |
| Noritz | EZ series | $1,000 - $1,800 | Japanese engineering, compact design, strong in commercial and residential |
All four brands have authorized service networks in Ontario. Navien has gained significant market share in recent years thanks to competitive pricing and the built-in recirculation pump, which eliminates the need for a separate recirc system.[6][7]
Hidden Costs When Going Tankless
The sticker price on a tankless unit tells only part of the story. If you are converting from a tank water heater, expect these additional costs. For more on this topic, our HVAC hidden costs guide covers the broader pattern.[1][7]
- Venting conversion: Switching from a chimney to PVC sidewall venting adds $500 to $1,000.
- Gas line upgrade: Tankless units have higher BTU demands than tanks. If your existing gas line is undersized, upsizing it can add $300 to $800 depending on the run length.
- Electrical: Even gas tankless units need a dedicated electrical outlet. If your panel needs work, budget $200 to $500.
- Old tank removal: Disposal of the old tank and draining typically runs $100 to $200.
- Permits: Most Ontario municipalities require a plumbing and/or gas permit. Expect $75 to $200.
A full tank-to-tankless conversion in Ontario typically lands at $3,900 to $5,500 all in. One detailed example: $1,800 for the unit, $1,500 for installation, $2,000 for electrical upgrade, and $1,200 for removal and permits, totaling $6,500.[1]
Heat Pump Water Heaters
Heat pump water heaters (HPWHs) are the most efficient option available. Instead of generating heat directly, they pull heat from the surrounding air and transfer it to the water, similar to how an air conditioner works in reverse.[9]
Installed costs run $5,800 to $7,500 in Ontario. The higher upfront price is offset by dramatically lower operating costs. With a COP (coefficient of performance) of 3.5 to 4.0, they use 60% to 70% less electricity than a standard electric tank.[9][8]
Top Heat Pump Water Heater Brands
| Brand | Popular Model | Notes |
|---|---|---|
| Rheem | ProTerra | Most widely available in Ontario, multiple size options, Wi-Fi enabled |
| Bradford White | AeroTherm | Pro-grade, sold through plumbing wholesalers, strong warranty |
| A.O. Smith | Voltex | Multiple operating modes, available at Home Depot and plumbing suppliers |
Ontario Climate Considerations
Heat pump water heaters need ambient air between 40F and 90F (4C to 32C) to operate efficiently. Ontario basements can drop below that range in deep winter, especially in unfinished or poorly insulated spaces. The best placement is in a utility room near your furnace, where waste heat keeps the ambient temperature warm enough for the heat pump to work properly. If your basement consistently drops below 4C in winter, you may see reduced performance and the unit will rely more on its backup electric heating element.[9]
Rebates and Incentives
Ontario does not have a broad rebate program for standard gas or electric water heaters. However, heat pump water heaters qualify for the Home Renovation Savings (HRS) program through SaveOnEnergy, which offers a $500 rebate.[10]
To qualify, the heat pump water heater must be ENERGY STAR certified and installed in an existing home (not new construction). The rebate is applied for after installation through the SaveOnEnergy website. For the full picture on what else you can claim, see our complete Ontario energy rebates guide. You can also use our rebate checker to see all programs you qualify for. Check saveonenergy.ca/homerenovationsavings for current eligibility details and application instructions.
With the $500 rebate factored in, the net installed cost of a heat pump water heater drops to $5,300 to $7,000, which narrows the gap with high-end gas tankless options.
Rental Rates for Context
This is a cost-to-buy guide, but rental rates are useful context for understanding when purchasing makes financial sense. Here are current Ontario rental rates:[4][5]
| Type | Monthly Rental | 10-Year Rental Cost |
|---|---|---|
| Electric tank | $19 - $23/mo | $2,280 - $2,760 |
| Gas tank (standard) | $45 - $70/mo | $5,400 - $8,400 |
| Gas tankless / high-efficiency | $60 - $94/mo | $7,200 - $11,280 |
Enercare's rental range starts at $19 per month for basic electric tanks and goes up to $70 for gas models.[4] Reliance has been reported at $100 or more per month for some premium models.[5] DH Ontario advertises rates from $22.99 per month.
At a $50 per month gas tank rental, you would pay $6,000 over 10 years. Purchasing a power vent gas tank at $3,000 installed means you break even in about 5 years and save $3,000 over the full decade. For a deeper dive into the rent-vs-buy math, see our rent vs buy water heater guide. If you are currently renting and want to know your buyout cost, check our buyout calculator.
What Affects Your Final Price
The ranges above cover typical installations, but several factors can push your cost higher or lower:
- Existing infrastructure: Swapping like for like (same fuel type, same venting) is always the cheapest path. Changing fuel types or venting styles adds $500 to $2,000.
- Location in the home: A water heater in an easy-access basement is a standard install. One in a crawl space, attic, or tight mechanical room can add $200 to $500 in labour.
- Permits: Most Ontario municipalities require permits for water heater installation, especially gas. Budget $75 to $200.
- Hard water: If you are in a hard water area (Kitchener-Waterloo, London, Hamilton), consider a water softener or at least an inlet filter to protect your new water heater from scale buildup. Hard water can shorten a tank's life by 2 to 4 years.
- Urgency: Emergency replacements (your tank just failed and your basement is flooding) can cost 10% to 20% more than a planned replacement due to after-hours labour and limited model selection.
How to Get the Best Price
A few practical tips for Ontario homeowners shopping for a water heater:
- Get three quotes. Prices vary significantly between contractors. Make sure each quote includes the unit, labour, venting, permits, and disposal of the old unit.
- Ask about the total installed price. Some contractors quote the unit cost and then add installation fees, venting upgrades, and permits separately. Get one all-in number.
- Check the rebate before you buy. If you are considering a heat pump water heater, confirm the $500 HRS rebate is still active at SaveOnEnergy before committing.[10]
- Plan the replacement. If your current water heater is 10 or more years old, start getting quotes now rather than waiting for it to fail. Planned replacements give you time to compare prices and choose the right model.
- Consider lifetime cost, not just sticker price. A $5,000 tankless that lasts 20 years costs $250 per year. A $2,800 tank that lasts 12 years costs $233 per year. The gap is smaller than the sticker shock suggests, and the tankless saves on energy too.
Related Guides
Water heaters connect to bigger decisions about your home's energy setup. These guides cover related topics.
- Rent vs. Buy Water Heater Ontario - the full cost comparison over 10 and 15 years
- Cancel HVAC Rental Ontario - how to exit a rental contract legally
- HVAC Rental Buyout Ontario - what buyout costs and when it makes sense
- Ontario Home Energy Rebates 2026 - every rebate available, including the $500 HPWH rebate
- Plumbing Costs Ontario - broader plumbing pricing for related work
- Water Softener Cost Ontario - protect your investment in hard water areas
Frequently Asked Questions
How much does a new water heater cost in Ontario in 2026?
It depends on the type. An electric tank water heater costs $600 to $1,500 installed. A gas power vent tank costs $2,400 to $3,500 installed. A gas tankless unit costs $2,500 to $5,500 installed. A heat pump water heater costs $5,800 to $7,500 installed. These ranges include the unit, labour, permits, and standard connections.
What is the cheapest type of water heater to buy in Ontario?
An electric tank water heater is the cheapest to purchase and install, starting at around $600 for a 40-gallon model. However, electricity rates in Ontario make it more expensive to operate than gas. If you already have a gas line, a conventional vent gas tank at $1,800 to $2,500 installed is often the most cost-effective option overall.
How much does it cost to switch from a tank to a tankless water heater?
Converting from a tank to a tankless water heater typically costs $3,900 to $5,500 fully installed. The higher cost reflects gas line upgrades, new venting (chimney to PVC sidewall conversion runs $500 to $1,000), and removal of the old tank. A real-world example from Niagara came in at $4,400 including gas piping redo and high-efficiency venting.
Are heat pump water heaters worth it in Ontario?
Yes, if your basement stays above 40F (4C) year-round. Heat pump water heaters use 60% to 70% less electricity than a standard electric tank, with a COP of 3.5 to 4.0. At $5,800 to $7,500 installed, the higher upfront cost is offset by lower operating costs and a $500 rebate through SaveOnEnergy. They last 12 to 15 years. Ontario basements that run cold in winter may see reduced efficiency.
What rebates are available for water heaters in Ontario?
The Home Renovation Savings (HRS) program through SaveOnEnergy offers a $500 rebate for heat pump water heaters. There are currently no provincial rebates for standard tank or tankless gas water heaters. Some utility companies offer separate incentives, so check with your local provider.
How long does a water heater last?
A tank water heater (gas or electric) typically lasts 10 to 15 years. A tankless water heater lasts 15 to 20 years or more with proper maintenance, including annual descaling. A heat pump water heater lasts 12 to 15 years. Hard water areas in Ontario may see shorter lifespans due to scale buildup on heating elements.
Is it cheaper to buy or rent a water heater in Ontario?
Buying is almost always cheaper over the long term. A gas tank rental runs $45 to $70 per month, totaling $5,400 to $8,400 over 10 years with nothing to show for it. A purchased gas tank at $2,400 to $3,500 installed breaks even in 4 to 6 years. For a detailed cost comparison, see our rent vs buy water heater guide.
- MWS HVAC Services New Tankless Water Heater Cost Ontario
- Hot Water Ottawa How Much Do Water Heaters Cost?
- Cansumer Hot Water Heater Cost in Canada
- Enercare Water Heater Rental Rates
- Reliance Home Comfort Ontario Water Heater Pricing Guide
- Dynamic Heat and Cool Best Tankless Water Heater in Ontario: Complete Buyer's Guide
- NorthWind HVAC Pro Tankless Water Heater: What to Know Before You Buy
- Natural Resources Canada Water Heaters
- HomeGuide Heat Pump Water Heater Cost
- SaveOnEnergy Home Renovation Savings Program