OWN A TANKLESS
WATER HEATER
For as low as $30.90/month
Save up to 50% of your energy bill
OWN A TANKLESS
WATER HEATER
For as low as $30.90/month
Save up to 50% of your energy bill

Tired of your morning shower turning ice-cold just as you’re waking up?
For many homeowners in Toronto and the GTA, running out of hot water is more than an inconvenience; it’s a daily frustration. Traditional hot water tanks constantly heat a large reservoir of water, wasting energy and eventually running dry when your family uses more hot water than usual.
Tankless water heaters, often called “on-demand” systems, solve this by heating water only when you need hot water at your taps. Using high-powered heat exchangers, these compact units provide a continuous flow of hot water, ensuring you never have to wait for a tank to refill again.
At Husky, we specialize in helping Toronto residents transition to this efficient, space-saving technology.
Call us 24/7: 905-761-9485 or 416-665-3666
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Hot water issues don’t follow a 9-to-5 schedule. Whether it’s a sensor error or a combustion issue, Husky provides 24/7 emergency repair services across the GTA to get your hot water back online as soon as possible.
Call us 24/7 at: 905-761-9485
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A tankless unit requires precise gas line sizing and specialized venting to operate safely. Our licensed, NATE-certified technicians ensure your installation meets all Ontario safety codes and manufacturer specifications for optimal performance.
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Toronto’s water is “moderately hard,” leading to calcium and magnesium scale buildup in the heat exchanger.
We provide professional flushing and descaling services to prevent “Scale Bridge” errors and ensure your unit maintains its high-efficiency rating for years to come.
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You can get the Husky professionals to help with your home’s heating, cooling and hot water needs in these regions: Aurora, Ajax, Bolton, Brampton, Burlington, Caledon, East Gwillimbury, Etobicoke, Georgina, Halton, Halton Hills, King, Markham, Milton, Mississauga, Newmarket, Oakville, Oshawa, Peel, Pickering, Richmond Hill, Scarborough, Thornhill, Toronto, Uxbridge, Vaughan, Whitby, and York.
Request A Free QuoteChoosing the right brand is critical for performance in Ontario’s climate, where incoming city water can be near freezing in January. We recommend two industry leaders:
Navien is a pioneer in condensing technology. Their units are specifically designed for cold-climate performance, utilizing a secondary heat exchanger to capture extra heat that would otherwise be lost.
With high-efficiency ratings (AFUE) and stainless steel heat exchangers, Navien water heaters are a top choice for Toronto homeowners seeking durability and maximum energy rebates.
Rinnai is known for reliability and precision engineering. Thanks to their long lifespans and consistent temperature control, Rinnai units are a staple in GTA homes.
Rinnai water heaters offer a wide range of models that balance high-efficiency performance with a smaller footprint, making them ideal for urban Toronto homes where basement space is at a premium.
Switching from a traditional storage tank to a tankless system can significantly reduce your monthly gas bill.
While a traditional tank must cycle on and off repeatedly to keep water hot, a tankless unit only consumes fuel when you are actively using hot water.
Tankless models work by sending cold water through heat exchangers inside a small suitcase-sized unit that hangs on your wall. The preheated water then travels to the water fixture (like a faucet, washing machine, dishwasher or shower). The tankless system continues to heat water while in use, and when you no longer need it, the water stops flowing, and the heating element is extinguished.
As you can see, a tankless water heater doesn’t require a large storage tank because it heats water only when you need it. As a result, your new tankless water heater provides you and your family with an endless supply of hot water.
The pros of a tankless water heater definitely outweigh the cons. Here are some of the fantastic advantages:
But, even the best tankless water heater has some disadvantages, for example:
Q: How much does it cost to install a tankless water heater in Toronto?
A: Depending on the model and any necessary gas line or venting upgrades, a professional installation in the GTA typically ranges from $3,500$ to $6,000.
Q: Do tankless water heaters actually work well in cold Canadian winters?
A: Yes. Modern units, such as those from Navien, feature high BTU output and internal freeze protection. Even when the incoming water temperature drops in February, these units can maintain a high temperature rise to keep your showers hot.
Q: What size tankless water heater do I need for a 4-bedroom house?
A: For a standard 4-bedroom home with 2–3 bathrooms, you typically need a unit capable of at least 199,000 BTUs or a flow rate of 9-11 GPM (Gallons Per Minute) to ensure multiple fixtures can run simultaneously.
Q: Navien vs. Rinnai: Which tankless water heater brand is better?
A: Navien generally leads in condensing efficiency and high-tech features, while technicians praise Rinnai for its reliability and ease of service. We recommend Navien for the best energy savings and Rinnai for long-term simplicity.
Q: How often does a tankless water heater need to be flushed?
A: In the Toronto area, we recommend a professional flush and descale once every 12 to 18 months to prevent mineral buildup from damaging the heat exchanger.