DK44018C
(en )
1931-04-20
Hot water kettle with a heating hose arranged parallel to the boiler elements' water space.
SU12903A1
(en )
1930-01-31
Device for feeding steam boilers with simultaneous water heating
DK39211C
(en )
1928-09-03
Boiler with built-in Hot water boiler.
FR683941A
(en )
1930-06-19
Hot water central heating boiler
DK41325C
(en )
1929-12-23
Hot water boilers.
CA276762A
(en )
1928-01-03
Hot water or steam boiler
FR38804E
(en )
1931-07-31
Hot water central heating boiler
FR701950A
(en )
1931-03-25
Hot water heater
DK45013C
(en )
1931-12-21
Hot water boiler.
DK39613C
(en )
1928-12-17
Expansion tank with Hot water tank.
DK42641C
(en )
1930-07-21
Water heating boiler.
FR608985A
(en )
1926-08-06
Hot water circulation stove
ES113422A1
(en )
1929-08-01
Improvements in the boiler water heaters for boilers and similar.
DK42625C
(en )
1930-07-21
Radiator with Hot water circulation.
ES108023A1
(en )
1928-08-01
An improvement in steam or hot water boilers.
DK44040C
(en )
1931-04-20
Steam boiler with large Water Room.
FR595603A
(en )
1925-10-06
Hot water heat recovery unit
CA293575A
(en )
1929-10-01
Hot water and steam heat economizer
FR850804A
(en )
1939-12-27
Hot water central heating boiler
DK49035C
(en )
1934-07-23
Combined Central Heating and Hot Water Supply Boiler.
ES119323A1
(en )
1930-09-16
A boiler appliance to heat water.
DK56356C
(en )
1939-06-26
Stove with built-in hot water boiler.
FR640795A
(en )
1928-07-21
Steam system with hot water accumulator
DK43247C
(en )
1930-10-27
Central heating boiler with built-in hot water tank and cooking and frying room.
SU4953A1
(en )
2001-03-31
A device that regulates the degree of water heating in regenerators with steam turbines