Tankless Water Heater Problems In Cold Weather

Tankless water heaters use a condenser that pre heats the water so it doesn t take as long for the water to reach the pre set temperatures for hot water flow.

Tankless water heater problems in cold weather. In winter when the incoming water temperature is colder the tankless unit can t heat as much hot water she says. No hot water is one of the most common problems in water heating systems. Many manufacturers build the gas tankless units to provide freeze protection to accommodate sub zero temperatures. Cold weather can be a problem for tankless water heaters.

Though it is true that most electric tankless heaters do not perform well in cold weather many natural gas tankless systems do. This is a problem rarely seen in traditional tank style water heaters but one you can avoid with regular water heater maintenance. In addition the pipes into the tankless water heater must be heat traced and insulated to protect them from freezing. The temperature is set too high.

So when the ground water gets colder in winter the electric tankless water heater may not give you the endless hot water you re expecting. Another problem that tankless water heaters can run into is that of a cold water sandwich a plumbing term given to sudden temperature fluctuations when your tankless water heater produces hot and cold water intermittently. An improperly sized gas line as mentioned above. Rinnai rl75en natural gas tankless water heater.

In order to use this feature you must have both power and gas run to the unit. They often require additional attention in order to prevent them from experiencing weather related problems such as freezing. In a cold climate the first consideration is to size tankless units properly says linda cahill vice president of tankless concepts in falls church virginia which sells and installs rinnai and navien products. Reduce the temperature to avoid the problem with the scalding hot.

A rinnai certified contractor or approved plumber will follow. Why the tankless water heater s size matters. At a rate of approximately 1 6 gallons per minute the water reaches the temperature set by the home owners. This can be caused by.

Water is too hot. Your air supply or exhaust is blocked. A rinnai tankless water heater features built in freeze protection so it will remain in operation in temperatures as low as 30. Water is not hot.

Rheem rtg 64xln tankless water heater. Best tankless hot water heaters for cold climates. For most tankless water heaters the display with present an error code to inform you that your air supply or exhaust is blocked. Unfortunately there s no way to prevent this but now that you re aware of the problem you can avoid jumping in the shower until the cold water has passed.

Fixing tankless water heater problems no hot water. Rinnai rl94ip propane tankless water heater.