Protecting your tankless water heater from the Polar Vortex

| by Joe Holliday
Protecting your tankless water heater from the Polar Vortex

With the recent bitter conditions and wintry weather nationwide, you and your family have likely had to prepare for possible power outages with extra groceries, flashlights with batteries and warm blankets.

You may or may not realize that your tankless water heater also needs protection from the freezing temperatures. And, for this reason, some manufacturers engineer their tankless water heaters with a freeze protection feature to help safeguard against harsh winter weather.

As long as there are both power and gas supply to the appliance, freeze protection helps guard against outside temperatures. Specific temperature protection is unique to individual manufacturers, but for example, Rinnai’s freeze protection guards against temperatures as cold as -22°F (?30°C) for indoor models, or as cold as -4° F (-20° C) for outdoor models when protected from direct wind exposure.

If your tankless water heater will be dormant during a period of possible below-freezing temperatures, it is recommended the water be drained from the unit.

If the unit or the external piping has frozen, do not operate the tankless water heater. Instead, close the gas and water valves and turn off power to the unit. Then, contact your local service provider for assistance.

Have additional questions about your water heater and the ensuing cold weather? Contact your installer for more information. 

Topics: Maintenance & Repair, Water Heaters

Companies: Rinnai

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