How to Install a Recirculating Pump on a Tankless Water Heater

How to install a recirculating pump on a tankless water heater? It’s not difficult. The process is similar to how you might set up the tankless heater itself: locate the hot water feed (usually close to the tank), locate the cold water return (usually close to the drain). Once these are set up, simply add a second heater or more heaters and adjust the thermostat until the water heats up to the appropriate temperature for your needs. And that’s all there is to it!