Keep Them Warm: Preventing Tankless Water Heaters from Freezing

a plumber fixes the pipes under the sink
The periodic maintenance of water heaters, like tankless water heaters, can ensure that they supply heated water efficiently, as well as potentially avoid serious issues in the future by fixing the problems early on. During winter, it’s important to keep the tankless water heater functional by preventing it from freezing. Homeowners looking to keep their tankless water heaters operational during winter should keep these things in mind.

Keep it Plugged into a Power Source

A tankless water heater should stay connected to electricity so that its freeze protection system can keep it hot. This does not mean, however, that the water heater should always be on. Plugging it into an electrical outlet should be enough. If you are in an area where power outages are common, it’s best to have a backup power supply.

Ensure Pipe Insulation

Failing to keep the pipes of your water heater warm increases the risk of pipe damage due to frigid temperatures. As the freeze prevention system of your heater cannot protect the pipes from freezing, insulate your pipes using heat tape, polyethylene insulation, or fiberglass. It’s only fitting to keep the pipes warm so water can flow properly to the heater, after all.

Drain Your Water Heater

If you don’t use your water heater regularly, be sure to drain the standing water inside, regardless of the volume, as it can collect inside the device and freeze in frigid temperatures. If the ice formed destroys the internal plastic components of the water heater, it would mean shelling out cash to have it repaired. Prevent this from happening by draining the water completely and isolating the water to the heater.

Draining the water heater, keeping the water heater plugged, and ensuring pipe insulation can prevent a tankless water heater from freezing. Freeze prevention lets you extend the life of your water heater and give you warm water during the coldest times of the year.