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Hot Water Delivery System Tips

On-Demand Controllers for Tankless Water Heaters

Will they work and how to properly install them

Man wondering "how does Smart Recirculation Control work with a tankless water heater?"

 

I often have people ask if the Smart Recirculation Control will work with tankless water heaters.  The answer is yes it will. 

The only comment is to look over your water heater’s specifications and check if there is a limit on the temperature of the water going into the water heater. 

I have heard of one electric model that limits the temperature to no greater than the outflow temperature minus 20 deg F.  If this is the case, you can set the temperature differential in the Smart Recirculation Control to a large differential of 25 deg F and a small differential of 20 deg F. 

The Smart Recirculation Control system should be installed exactly as if the water heater were a tank model. 

The flow meter goes on the cold water input to the water heater. One temperature sensor goes at the outflow to the water heater and the other temperature sensor goes on the recirculation return line near the pump and before the recirculation line T’s back into the cold water feed. 

Check out our installation guides for a closer look at how the systems are set up. 

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