| Patents for F24H 1 - Water heaters having heat generating means, e.g. boiler, flow-heater, water-storage heater (28,567) |
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| 11/25/1981 | EP0040303A1 Apparatus for the heat exchange between two fluids of differing temperatures |
| 11/25/1981 | EP0040226A1 Exhaust gas system in a combustion apparatus for pulsating combustion |
| 11/24/1981 | US4301773 Hydrodynamic induced draft and water cooled flue gas hot water heater |
| 11/24/1981 | US4301772 Water heating apparatus |
| 11/18/1981 | EP0040029A2 Liquid heater |
| 11/17/1981 | US4300536 Auxiliary hot water boiler with solar heater and heat exchange system |
| 11/10/1981 | US4299194 Hot oil heater with helical coil baffle |
| 11/03/1981 | US4297987 Heat exchange system |
| 10/28/1981 | EP0038332A1 Process for preventing the condensation of combustion gases and boiler for implementing such process |
| 10/27/1981 | US4296799 Solar water tank and method of making same |
| 10/27/1981 | US4296712 Two-chamber boiler for burner firing and solid fuel firing |
| 10/27/1981 | US4296711 Heating boiler |
| 10/21/1981 | EP0037847A2 Upright cylindrical boiler for latent heat of liquid with a superimposed open expansion tank for temperatures also above the boiling point |
| 10/20/1981 | US4295447 Heating boiler and temperature control therefor |
| 10/07/1981 | EP0037333A1 Gas heater with closed combustion circuit |
| 10/07/1981 | EP0036997A2 Boiler, particularly for the installation in movable rooms or the like |
| 10/06/1981 | US4293762 Temperature-controlled electric heating device for heating instillation or transfusion liquids |
| 10/06/1981 | US4292933 Furnace |
| 10/06/1981 | US4292904 Furnace and boiler system and method of operation thereof |
| 10/01/1981 | WO1981002774A1 Solar/gas'heater |
| 09/29/1981 | US4291633 Incinerator |
| 09/23/1981 | EP0036322A1 Compact induced-current heat-generating pipe system and construction incorporating it |
| 09/23/1981 | EP0036236A1 Heating device |
| 09/17/1981 | WO1981002623A1 Large capacity straw boiler |
| 09/16/1981 | EP0035550A1 Process for combustion of wood fuel and furnace and boiler system for carrying out said process. |
| 09/09/1981 | EP0035045A1 Boiler |
| 09/08/1981 | US4288685 Flow-activated resistance heater for water |
| 09/08/1981 | US4288683 Insulating porous matrices for electrode boilers |
| 09/08/1981 | US4287857 Burner-boiler combination and an improved burner construction therefor |
| 09/08/1981 | CA1108497A1 Radiantly heated furnace |
| 09/02/1981 | EP0034786A1 Method of operating a boiler unit and device suited therefor |
| 08/26/1981 | EP0034396A1 Method of controlling the energy management of an energy system and energy system based on said method |
| 08/26/1981 | EP0034186A1 Natural circulation-type hot water storage heater |
| 08/25/1981 | US4286140 Apparatus for raising a liquid to a given temperature |
| 08/25/1981 | CA1107796A1 Electric furnace |
| 08/19/1981 | EP0034136A2 Domestic heating installations |
| 08/12/1981 | EP0033338A1 Proportional power input electric space heating system |
| 08/11/1981 | US4282833 Hot-water boiler, for instance a central heating boiler, and a metal casting therefor |
| 08/06/1981 | WO1981002195A1 A boiler having a pumping effect |
| 08/05/1981 | EP0032935A1 Underground tank used as a water supply tank for heat pumps |
| 08/04/1981 | US4282421 Dual compartment electric water heater |
| 08/04/1981 | US4281604 Domestic boiler |
| 08/04/1981 | US4281519 Refrigeration circuit heat reclaim method and apparatus |
| 07/29/1981 | EP0032841A1 Apparatus for heating electrically conductive flowable media |
| 07/29/1981 | EP0032840A1 Apparatus for heating electrically conductive flowable media |
| 07/28/1981 | US4280556 Heat exchanger-tank assembly for hot water heating system |
| 07/28/1981 | US4280450 Liquid heating apparatus |
| 07/22/1981 | EP0032464A1 Apparatus for heating electrically conductive flowable media |
| 07/14/1981 | US4278069 Diffusion, dopes, dielectrics |
| 07/14/1981 | US4278034 Furnace |
| 07/14/1981 | CA1104891A1 Connecting arrangement for a heating boiler |
| 07/09/1981 | WO1981001936A1 Through passing heater |
| 07/09/1981 | WO1981001874A1 Method and apparatus for transferring heat from waste water from a building |
| 07/08/1981 | EP0031571A1 Boiler |
| 07/01/1981 | EP0031313A1 Through passing microwave heater |
| 06/30/1981 | US4275708 Combined hot water heating and stripping column furnace and method |
| 06/30/1981 | CA1104052A1 Catalytic combustion process and system |
| 06/24/1981 | EP0030930A1 Thermal insulation jacket for a hot water container and process for its manufacture |
| 06/23/1981 | US4274581 Package heat exchanger system for heating and cooling |
| 06/23/1981 | CA1103540A1 Central heating furnace |
| 06/16/1981 | CA1103200A1 Non-sacrificial anode and water heater construction |
| 06/10/1981 | EP0030183A1 Heating element for gas-fired domestic hot-water central-heating boilers |
| 06/09/1981 | US4272667 Electric fluid heating apparatus employing stackable heat transfer modules |
| 06/09/1981 | US4271789 Energy conversion system |
| 05/28/1981 | WO1981001456A1 Exhaust gas system in a combustion apparatus for pulsating combustion |
| 05/27/1981 | EP0029219A2 Device for the production of hot water by means of a heat pump, and method of operating this device |
| 05/20/1981 | EP0028830A1 Central-heating boiler with infinitely adjustable heating surfaces in the shape of a spiral and cleanable from the outside |
| 05/13/1981 | EP0028503A2 Method and apparatus for heating a fluid employing a gas containing sulfur oxides and water |
| 05/12/1981 | US4266513 Flue heat exchanger |
| 05/06/1981 | EP0028046A1 Hot water boiler |
| 04/30/1981 | WO1981001187A1 Process for heating a boiler and boiler for implementing such process |
| 04/29/1981 | EP0027701A1 Domestic space-heating systems and radiators therefor |
| 04/28/1981 | US4263879 Water heater |
| 04/28/1981 | US4263878 Boiler |
| 04/21/1981 | US4263498 Expansion chamber arrangement for water heating and dispensing device |
| 04/15/1981 | EP0027055A1 Hot-water boilers |
| 04/14/1981 | CA1099159A1 Heating device for liquids |
| 04/14/1981 | CA1099158A1 Method and device for improving the efficiency of heat generators |
| 04/08/1981 | EP0026271A2 Heat exchanger, particularly for gas or oil fired water heaters |
| 04/07/1981 | US4260361 Resonant or pulsating combustion heating apparatus |
| 04/07/1981 | US4259928 Continuous flow water heater |
| 04/07/1981 | CA1098951A1 In line heater for fluid moving in a conduit |
| 04/01/1981 | EP0025916A1 Electric continuous-flow heater |
| 03/25/1981 | EP0025769A2 Boiler for hot water heating |
| 03/25/1981 | EP0025535A2 Apparatus for controlling the evaporation of a liquid |
| 03/24/1981 | US4257557 Fluid heating system utilizing solid fuel |
| 03/24/1981 | US4257355 Cold water inlet tube |
| 03/19/1981 | WO1981000753A1 Vertical feed wood-type fuel furnace system |
| 03/17/1981 | US4256059 Heat-exchanging system |
| 03/17/1981 | CA1097546A1 Water heating stove |
| 03/17/1981 | CA1097544A1 Heating boiler |
| 03/11/1981 | EP0025003A1 Multifuel heater for heating and hot water production |
| 03/10/1981 | US4254740 Heat exchange device |
| 03/05/1981 | WO1981000611A1 Heating plant |
| 03/04/1981 | EP0024381A2 Floating heat exchanger for a combustion heater |
| 03/04/1981 | EP0024376A1 Heating apparatus |
| 03/03/1981 | US4253426 Reservoir type water heating device |
| 03/03/1981 | CA1096917A1 Coffee making machine with automatic removal of the scale |
| 02/19/1981 | WO1981000500A1 Proportional power input electric space heating system |
| 02/19/1981 | WO1981000444A1 Underground tank used as a water supply tank for heat pumps |