Rheem timer based recirculation pump kit for tankless water heaters

Do recirculation pumps work with tankless water heaters?

Some tankless water heater models come with a recirculation pump, while others do not, mostly to reduce the cost of tankless water heaters for consumers. While they will work without one, purchasing a tankless water heater with an integrated recirculation pump is always recommended first.

Where do you put a recirculating pump on a tankless water heater?

Cold Water Line: If you install the circulation pump and Flow Monitor in the cold water line it must be located on the pipe that is the sole supply of water for the tankless heater. If it supplies water to any other fixture it may lead to false activation of the pumping system.

Is a recirculation pump worth it?

With the average national cost of water rising rapidly, a hot water recirculation pump could easily save you upwards of $50 each year. Since these pumps cost between $200 and $250 each, you could pay back the investment within a couple of years.

Does a hot water recirculating pump run all the time?

The most common circulator pumps run all day, every day, whether you're actively using hot water or not. This causes a lot of heat to dissipate in the pipes 24/7 and requires the water heater to work harder to keep the water hot.