Patents for F24D 12 - Other central heating systems (923)
08/1980
08/06/1980EP0013669A1 Heating device
04/1980
04/29/1980CA1076537A1 Fireplace heating system
04/29/1980CA1076536A1 Heating system linking two different heat sources to two distinct diffuser ductworks
02/1980
02/19/1980US4189096 Central heating plant
02/12/1980CA1071483A1 Auxiliary heating device for standard hot water type home heating systems
11/1979
11/01/1979WO1979000874A1 Heating device
10/1979
10/16/1979US4170879 Method and system for utilizing waste heat generated in thermal electric power stations
08/1979
08/07/1979US4163430 Heat recovery and filter system and process for furnace exhaust gases
07/1979
07/17/1979CA1058462A1 Heating system having high-low temperature limit controlled auxiliary boiler
07/03/1979US4159801 Fireplace boiler
04/1979
04/03/1979US4147301 Heating system
12/1978
12/26/1978US4131231 Fireplace heating system
11/1978
11/28/1978US4127107 Auxiliary heating device for standard hot water type home heating systems
09/1978
09/19/1978US4114809 Wind powered hydraulic heating system
03/1978
03/28/1978US4080701 Water jacket fabrication
03/21/1978US4079778 Heating system
01/1978
01/03/1978US4066210 Chimney heat reclaimer
10/1977
10/04/1977US4052001 Heating system
07/1977
07/26/1977US4037779 Heating system having high-low temperature limit controlled auxiliary boiler
05/1977
05/24/1977US4025043 Fireplace heating system
04/1977
04/26/1977US4019677 Heating system for building structures
11/1976
11/02/1976US3989189 Heating system
05/1976
05/25/1976US3958755 Hydro-thermo fireplace and heating system therefor
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