249320 ⎘
Fluid handling; Systems; Closed circulating system With thermal circulating means [thermo-siphons]
POWERLESS HOT WATER PUMPING APPARATUS
#2WATER HEATER WITH PASSIVE AUTOMATIC HOT WATER CIRCULATION THROUGH A HOME OR BUILDING
#3Self-acting self-circulating fluid system without external pressure source and use in bearing system
#4STRUCTURED HOT WATER DEMAND FLOW CONTROL SYSTEM WITH ACCOMMODATION FOR THERMAL EXPANSION
#5WATER HEATER WITH PASSIVE AUTOMATIC HOT WATER CIRCULATION THROUGH A HOME OR BUILDING