Residential hot water recirculation | Grundfos
https://product-selection.grundfos.com/us/applications/domestic-buildings/domestic-hot-water-recirculation
WEBWith a residential hot water recirculation pump from Grundfos, homeowners can enjoy the comfort of instant hot water while saving up to 10,000 gallons annually. Today, most new homes are constructed with a dedicated return line for efficient circulation, while older homes require a bypass valve to redirect cooled water for reheating.
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