These systems use the existing cold water line as a return line eliminating the need to install a new recirculating line. The hot water side of each fixture (faucet, shower or other appliance) must be placed in a continuous loop by connecting a hot water return line from the last fixture to the water heater. |
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| Two components are required for this system to work: An AquaLineŽ valve, with temperature control: required at the furthest fixture from the hot water heater. A circulating pump and 24 hour programmable timer installed at the hot water heater. |
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| Grundfos Comfort System Kit For Residential Instant Hot water. The water hot circulation system that eliminates water runoff at the faucet, using a bypass valve and pump with timer to control water flow. |