Hans Kuster

For a $200 to $400 investment, a home owner or business owner can save $844 to $1,344 in 10 years in water savings alone. Energy and utility savings are additional and larger. At the same time, users can enjoy hot-water comfort at every faucet without the wait.

Hot water in the supply pipe cools when no one draws hot water. Hot water recirculation saves lukewarm water from being dumped down the drain while waiting for hot water.

Benefits, cost and system component selection.

Title 24 of the California Code of Regulations now mandates hot-water recirculation in California building codes if the distance from the heat source to the tap is 50 feet or more. Other states have their own building codes that often vary by counties.