Hot water tank with multiple heat sources - has flexible copper or plastics divider plate inserted through side opening and supported inside
DE3014638A1
Washing water heating and storage unit - has heat pump with flexible hoses connected to condenser inside vessel
DE3010552A1
Dual fuel boiler system - has large smoke box extending over both burners and combustion chambers
DE3005545A1
Radiator water connection and air release assembly - includes vertical pipe with fittings for valves and air escape valve at top
DE2947995A1
Hot-water storage tank - has vertical pipe with thermostat valves at different levels connected to interior
DE2945350A1
Selective absorbent solar collector for greenhouse - has slab with channels coated with film transparent to chlorophyll spectrum and absorbent to radiation
DE2930596A1
FLEXIBLE POOL COVER
DE2712822A1
SOLAR HOT WATER TANK
DE2507595A1
Boiler with smoke after burning system in combustion chamber - has curved flame deflector opposite tangential flame entry burner at combustion chamber mid section
DE2507596A1
Device for storage of hot water - has flexible inner bellows type container with collar to allow interchangeable fitting to flange seal
