| Patents for F24D 11 - Central heating systems using heat accumulated in storage masses (2,832) |
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| 11/12/1981 | WO1981003220A1 Solar energy conversion apparatus |
| 11/10/1981 | US4299277 Heating and cooling system employing remote buried storage areas |
| 11/10/1981 | US4299275 Heat transfer system |
| 11/10/1981 | CA1112116A1 Flue gas heat recovery system |
| 10/27/1981 | US4296798 Integrated house |
| 10/27/1981 | CA1111323A1 Fluid heating and cooling system with thermal storage |
| 10/20/1981 | US4295415 Environmentally heated and cooled pre-fabricated insulated concrete building |
| 10/20/1981 | CA1111091A1 Method and apparatus for conservation of energy in a hot water heating system |
| 10/13/1981 | US4294229 Thermosiphoning module for environmentally driven heating and cooling system |
| 10/13/1981 | US4294228 Solar heating and subterranean cooling |
| 10/13/1981 | US4294038 Solar panel window unit |
| 10/06/1981 | US4293093 Co-axial fitting for use with a refrigeration circuit heat reclaim apparatus |
| 10/06/1981 | US4293029 Temperature control device for a heat pump |
| 10/06/1981 | US4292814 Heat pump |
| 10/01/1981 | WO1981002779A1 Aggregate mass air circulation and structural support system for generally enclosed structures |
| 10/01/1981 | WO1981002775A1 Solar heating system in a building |
| 09/30/1981 | EP0036565A1 Waste-heat recovery apparatus for boilers |
| 09/29/1981 | US4291834 System for heating air |
| 09/29/1981 | US4291833 Heating system with focused solar panels and heat pump assist |
| 09/29/1981 | US4291757 Multiple heat pump and heat balancing system for multi-stage material processing |
| 09/29/1981 | US4291756 Heat accumulator |
| 09/29/1981 | CA1109686A1 Underground service module |
| 09/23/1981 | EP0036355A1 Space heating installation for domestic or industrial use |
| 09/23/1981 | EP0036323A1 Apparatus for use in a solar heating system |
| 09/22/1981 | US4290415 Building for cold districts |
| 09/15/1981 | US4289115 Heating and cooling of a heavily insulated building through the use only of solar energy |
| 09/09/1981 | EP0035486A1 Heating system with heat storage |
| 09/09/1981 | EP0035068A1 Water-tank heat accumulator |
| 09/08/1981 | US4287877 Solar and central fireplace heating system |
| 09/08/1981 | CA1108496A1 Method and system for storing and extracting low- temperature heat energy |
| 09/03/1981 | WO1981002458A1 Heating and cooling system |
| 09/02/1981 | EP0034618A1 Heat exchanger |
| 09/01/1981 | US4286575 Solar heat system |
| 08/26/1981 | EP0034396A1 Method of controlling the energy management of an energy system and energy system based on said method |
| 08/26/1981 | EP0034164A1 A method and apparatus for storing heat. |
| 08/26/1981 | EP0034146A1 Method and arrangement for heat conditioning of buildings. |
| 08/26/1981 | EP0034141A1 Utilization of a heat pump for the feeding of house hold appliances |
| 08/25/1981 | CA1107592A1 Solar panel |
| 08/25/1981 | CA1107591A1 Method and apparatus for utilizing solar heat for heating a building |
| 08/19/1981 | EP0033756A1 Method and device for regulating a heating plant with an installation for obtaining heat from an absorber |
| 08/18/1981 | US4284067 Portable solar heater |
| 08/18/1981 | CA1107164A1 Heat collector system |
| 08/11/1981 | US4282752 Multi-channel temperature measurement amplification system |
| 08/05/1981 | EP0032935A1 Underground tank used as a water supply tank for heat pumps |
| 08/04/1981 | US4281639 Solar heating system |
| 08/04/1981 | US4281638 Damper for solar heating systems and the like |
| 08/04/1981 | US4281519 Refrigeration circuit heat reclaim method and apparatus |
| 07/28/1981 | US4280333 Passive environmental temperature control system |
| 07/28/1981 | CA1105906A1 Closed circuit heating system |
| 07/23/1981 | WO1981002059A1 A method and a device for absorbing and emitting heat or cold from the ground |
| 07/22/1981 | EP0032381A1 Absorption plant for environmental energy |
| 07/22/1981 | EP0032272A2 A method and a device for absorbing and emitting heat or cold from the ground |
| 07/21/1981 | US4279574 Energy recovery system |
| 07/15/1981 | EP0031942A1 Method of operating a heating device for the exploitation of terrestrial heat with a heat pump together with apparatus for carrying out the method |
| 07/08/1981 | EP0031327A1 Method of storing heat and heat store for carrying out the method |
| 07/07/1981 | US4277021 Closed circuit heating system |
| 07/07/1981 | CA1104557A1 Balanced waste heat recovery and dissipation system |
| 07/01/1981 | EP0031153A1 Heat storage system for storing solar heat or waste heat in several storage tanks |
| 07/01/1981 | EP0031028A1 Central heating system |
| 07/01/1981 | EP0030958A1 Heat store arrangement for waste heat in self-propelling plant |
| 06/24/1981 | EP0030553A1 Heat pump including compressor having low pressure ratio application |
| 06/16/1981 | US4273184 Solar heat utilized air-conditioning system |
| 06/16/1981 | US4273102 Solar energy system |
| 06/09/1981 | US4272268 Chemical heat pump |
| 06/09/1981 | US4272016 Integrated sewage treatment system |
| 06/09/1981 | US4271899 Heat pump control system |
| 06/09/1981 | US4271679 Heating installation |
| 06/02/1981 | US4270695 Underground service module |
| 06/02/1981 | US4270522 Solar heat collection and transfer system |
| 06/02/1981 | US4270519 Solar heating system |
| 05/28/1981 | WO1981001457A1 Accumulation electric heating apparatus |
| 05/27/1981 | EP0029219A2 Device for the production of hot water by means of a heat pump, and method of operating this device |
| 05/26/1981 | US4269263 Cooling and heating system utilizing solar heat |
| 05/26/1981 | US4269167 Closed pressurized solar heating system with automatic valveless solar collector drain-back |
| 05/20/1981 | EP0029010A1 Electric storage heater |
| 05/20/1981 | EP0028840A2 Arrangement for introducing heat into the primary circuit of the heat pump of a reverse-cycle heating installation |
| 05/19/1981 | CA1101233A1 Method and apparatus for heating by heat pumping |
| 05/14/1981 | WO1981001326A1 Method of cooling and heating by solar heat while dehumidifying |
| 05/14/1981 | WO1981001325A1 A space-heating system which has air or a liquid as the heat-transporting medium |
| 05/13/1981 | EP0028587A2 Solar panel |
| 05/12/1981 | CA1100837A1 High temperature thermal storage system utilizing solar energy units |
| 05/06/1981 | EP0027995A2 System for transferring heat energy from a refrigeration circuit to a hot water circuit |
| 05/05/1981 | US4265222 See-through solar collector |
| 05/05/1981 | US4265220 Multiple fluid medium system and improved hot water supply tank assembly utilized therein |
| 04/29/1981 | EP0027626A2 Device, panel and method for heating, cooling, air conditioning or humidity control of an industrial or commercial locality |
| 04/28/1981 | US4263894 Air storing and transmitting system |
| 04/28/1981 | US4263785 Method and system for recovering heat in association with dairy operations |
| 04/22/1981 | EP0027147A1 Heat collecting system |
| 04/21/1981 | US4262739 System for thermal energy storage, space heating and cooling and power conversion |
| 04/21/1981 | US4262657 Solar air heater |
| 04/21/1981 | US4262655 Cylindrical rotary controller for a solar heat system |
| 04/15/1981 | EP0026793A1 Heat pump driven by a combustion engine |
| 04/14/1981 | US4261329 Multi-transport modular solar energy system |
| 03/31/1981 | US4259401 Methods, apparatus, and compositions for storing heat for the heating and cooling of buildings |
| 03/31/1981 | US4258880 Fireplace heating system with finned tubes or fireplace grate |
| 03/31/1981 | US4258878 Flue gas heat recovery system |
| 03/31/1981 | US4258696 Passive thermal energy phase change storage apparatus |
| 03/24/1981 | US4257479 Heat exchanger and drain down for solar collector |
| 03/24/1981 | US4257477 Environmentally driven heating and cooling system |
| 03/24/1981 | US4257399 Hydro-solar system for heating and cooling |