Noritz America has introduced the RPK-EXT External Pump Kit, giving owners the time-, water- and energy-saving benefits of hot-water recirculation on an even broader array of residential tankless water heaters. Previously available only as a fully integrated circulator in the NRCP line of condensing tankless water heaters, the RPK-EXT Kit can now serve as a separate, add-on component to 26 additional Noritz residential models.
The RPK-EXT delivers hot water to a faucet, shower or appliance in seconds, eliminating the usual water- and energy-wasting wait. Using a sensor to monitor the hot-water line, the circulator automatically shuts off once the preset temperature is reached. Using a dedicated return line, the RPK-EXT also sends water that has been sitting in the hot-water line back to the tankless water heater for reheating and recirculation.