Rheem Australia Pty Limited

David Micallef

Wilson Ng

A water heating system having a system inlet pipe (), a hot water delivery pipe () and a hot water return pipe () connected to a building hot water distribution network (); the water heating system including one or more water heaters (), the or each water heater having a heater inlet () and a heater outlet (), a hot water return pipe () connected between the system inlet and delivery outlet via the building hot water distribution network to form a close loop hot water supply-return circuit; a pump () connected to circulate water through the hot water supply-return circuit whereby the pump can circulate water through one or more of the water heaters; a valve means () a first non-return valve adapted to prevent inlet water (water delivered to the system inlet) from flowing into the hot water return pipe or the building hot water distribution network.

Circulating hot water system and or appliance

A water heating system having a system inlet pipe (), a hot water delivery pipe () and a hot water return pipe () connected to a building hot water distribution network (); the water heating system including one or more water heaters (), the or each water heater having a heater inlet () and a heater outlet (), a hot water return pipe () connected between the system inlet and delivery outlet via the building hot water distribution network to form a close loop hot water supply-return circuit; a pump () connected to circulate water through the hot water supply-return circuit whereby the pump can circulate water through one or more of the water heaters; a valve means () [a first non-return valve] adapted to prevent inlet water (water delivered to the system inlet) from flowing into the hot water return pipe or the building hot water distribution network.

Growing community of inventors

Rydalmere, Australia

David Micallef