| Patents for F24D 5 - Hot-air central heating systems; Exhaust-gas central heating systems (1,847) |
|---|
| 01/06/1981 | CA1093042A1 Room heating method and apparatus |
| 11/04/1980 | CA1088920A1 Heat exchanger element |
| 10/28/1980 | US4230175 Heat exchanger element |
| 10/21/1980 | US4228846 Control apparatus for a two-speed heat pump |
| 10/21/1980 | US4228786 Flow director |
| 10/21/1980 | CA1087947A1 Auxiliary wood burning furnace |
| 10/16/1980 | WO1980002190A1 Method and arrangement for heat conditioning of buildings |
| 10/15/1980 | EP0016830A1 Radiant heating system using partitioned lighting plenums |
| 08/19/1980 | US4217952 Energy saving system for retrieving heat loss from an electrical apparatus |
| 07/22/1980 | US4213404 Solid refuse furnace |
| 05/20/1980 | US4203487 Climatizing apparatus |
| 04/29/1980 | CA1076553A1 Heat-exchanger |
| 03/25/1980 | US4194688 Method of and apparatus for providing supplemental heat to buildings |
| 03/20/1980 | WO1980000485A1 Radiant heating system using partitioned lighting plenums |
| 03/18/1980 | US4193390 Solar heating system |
| 02/19/1980 | CA1071962A1 Combined fireplace hood and heating unit |
| 02/05/1980 | US4186795 Heat-exchanger |
| 01/22/1980 | US4184476 Solar energy collecting apparatus |
| 11/27/1979 | US4175699 Supplemental air circulator for hot-air furnaces |
| 10/02/1979 | CA1063473A1 Combined household heating and cooling unit for air and water |
| 09/25/1979 | US4168797 Heated air distribution system |
| 09/05/1979 | EP0003811A2 Method and plant for the heating and/or conditioning of rooms |
| 07/03/1979 | US4159802 Heating system utilizing fuel bearing multi-tube water jacket |
| 04/17/1979 | CA1052571A1 Climatizing apparatus |
| 03/06/1979 | USRE29924 Thermally insulating wall units |
| 02/06/1979 | US4138062 Furnace air circulation system |
| 01/16/1979 | US4134545 Apparatus for recirculating heated air |
| 01/02/1979 | US4132263 Combined household heating and cooling unit for air and water |
| 12/19/1978 | US4130105 Auxiliary wood burning furnace |
| 11/28/1978 | CA1043105A1 Energy conservation housing |
| 11/07/1978 | US4124178 Energy and fuel conserving unit heater |
| 04/18/1978 | US4084745 Waste heat utilization system |
| 02/28/1978 | US4076074 High efficiency natural convection heating and cooling system for home dwellings |
| 02/28/1978 | US4076011 Warm air heating and fire-place system |
| 02/14/1978 | US4073104 Building construction system |
| 01/03/1978 | US4066210 Chimney heat reclaimer |
| 12/27/1977 | US4065055 Complete system for a home air heating and cooling, hot and cold water, and electric power |
| 10/25/1977 | US4055297 Forced air heating system utilizing fireplace as primary heat source |
| 07/26/1977 | US4037649 Heating and refrigeration system |
| 04/26/1977 | US4019714 Valve construction |
| 02/15/1977 | US4007874 Heating system |
| 02/08/1977 | US4006856 Arrangement for utilizing solar energy for heating buildings |
| 12/28/1976 | US3999710 Auxiliary heating equipment |
| 11/30/1976 | US3994276 Method of solar heating so as to reduce oil and gas consumption |
| 11/23/1976 | US3993244 Heating system |
| 11/02/1976 | US3989098 Built-in combination cooling and heating device |
| 05/11/1976 | US3955555 Air and heat circulation system for buildings |