Rinnai Hot Water Heater Goes Cold

This flow rate required will change depending on the cold water temperature.

Rinnai hot water heater goes cold.

The cold water sandwich is a phenomenon that is common to most tankless water heater systems. So you get hot water and then cold and thne hot. Using the hot water it could be the infamious cold water sandwich. Your tankless water heater will feel cold to the touch when the heater unit and pumps are in the rest state and not heating water.

Tried flushing with vinegar answered by a verified plumber we use cookies to give you the best possible experience on our website. Gas continuous flow hot water systems require water flow to keep them activated if the water flow gets too low the appliance will turn off. As long as everything is working properly e g. Water goes cold on my rinnai tankless after 3 or 4 minutes then gets hot then goes cold.

Water turns cold after 5 minutes then hot again later. Select rinnai tankless water heaters can provide faster hot water by recirculating the water through your plumbing systems so hot water is always available whenever you need it. Tank water heaters store a large amount of hot water and when it s not used promptly the air surrounding the tank can cause it to cool off wasting your energy. 360 technology is a built in pump and the circ logic technology needed all in one.

Hot water is left in the pipes from your last hot water draw. Circ logic technology allows you to purchase the pump separately for installation. When you open the tap you get the hot water in the pipes but back inside the water heater some cold water passes through before the unit ignites and starts heating up. My tankless water heater runs hot then cold then hot again the problem behind the complaint.

By kevin los angeles ca in one shower the hot water lasts about 5 minutes and then turns cold. In winter the cold water. There s nothing to worry about. Tankless water heaters also take up far less room than their storage tank counterparts and tend to last longer too.

You have hot water on demand there is no cause for concern. Gas electronic continuous flow hot water systems rheem dux rinnai bosch kelvinator thermann. Need professional tankless water heater help. First off this is a common tankless problem called a cold water sandwich.

According to this when you turn on the heater you receive a warm gush of water initially then a small amount of cold water and then hot water again.