Hans Kuster

Hans Kuster is an entrepreneur and inventor with 50 years of experience in the hydronics industry. He is the founder and president of AquaMotion and Sparco, and has received 25 patents between the two companies. Sparco was sold to Honeywell in 2000. Both the pumps and valves are patented, U.S. built and 100% tested at the Rhode Island factory. The AquaMotion Aqua-Flash under-sink hot-water recirculation system is the winner of the AHR/EXPO 2018 Innovation Award for the most innovative plumbing product. For more information, please visit www.aquamotionhvac.com.

An investment for home owners and businesses

Hot-water recirculation systems.

Hans Kuster

June 19, 2019

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 recirculation: An investment for homeowners and businesses

Hot water recirculation systems can pay for themselves.

Hans Kuster

March 29, 2019

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.

What you need to know about hot-water recirculation

The selection of the correct hardware, controls and pump are important for long service life.

Hans Kuster

August 27, 2018

Benefits, cost and system component selection.

What you need to know about hot-water recirculation

Benefits, cost and system component selection

Hans Kuster

April 26, 2018

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.