Heating water accounts for approximately 20 percent of a home’s energy expense. Tankless water heaters heat water as it flows, and only when required, using an electric element or gas burner. They provide endless hot water, and the heat-on-demand feature means you only pay to heat water as you use it, instead of paying to keep a tank of water heated 24 hours a day, 365 days a year.
What to Look For
- ENERGY STAR® certified tankless water heaters use 30 percent less energy, on average, than heaters with storage tanks
- Consider models with an efficiency rate of 80 percent or higher
- Buy the right size for your needs. Consult an experienced plumber to estimate the hot water demands in your home
Things to Consider
- Tankless units are more efficient than heaters with storage tanks, but the cost to purchase and install is higher
- Hire a certified HVAC technician to install the unit so that you are eligible for all warranties
- Tankless units save space. Wall-mounted units can be hung on almost any wall, including a wall close to the point of use
- Have your unit serviced every year or two by a qualified professional. Consult your owner’s manual for details
- Before you buy, check with your municipality or retailer to see if rebates are available
Cost
$1,000 to $2,800
Source: Natural Resources Canada