If you do this, make sure you insulate both the delivery and return pipes to reduce the amount of heat loss on water returning to the water heater to be reheated. Also install a pump with a adjustable timer so that water is not being recirculated at unnecessary times
Worldly_Unit_9031 t1_jdmncsp wrote
Reply to Recirculating pump for tankless water heater by GeekX2
If you do this, make sure you insulate both the delivery and return pipes to reduce the amount of heat loss on water returning to the water heater to be reheated. Also install a pump with a adjustable timer so that water is not being recirculated at unnecessary times