| Patents for F23L 3 - Arrangements of valves or dampers before the fire (255) |
|---|
| 05/17/1988 | CA1236729A1 Heating unit |
| 01/07/1988 | EP0251269A2 Process and furnace for gasifying a solid fuel and for burning the gases obtained |
| 12/08/1987 | US4711626 Damper mounting assembly |
| 07/15/1987 | EP0228983A2 Hermetically sealed battery cover assembly |
| 07/15/1987 | CN86107986A Hermetically sealed battery cover assembly |
| 01/20/1987 | US4637296 Air flow controlling apparatus |
| 08/26/1986 | US4607610 For positioning in a reaction chamber |
| 08/12/1986 | CA1209680A1 Air flow controlling apparatus |
| 01/07/1986 | US4562777 Heat generator |
| 10/08/1985 | US4545308 Apparatus for regulating airflow to a chemical recovery boiler |
| 10/01/1985 | US4543941 Valve for furnace stack pipe |
| 10/01/1985 | US4543890 Wood fuel combustion system |
| 09/03/1985 | US4538980 Positive opening damper for combustion appliance |
| 02/05/1985 | US4497262 Wood fired boiler |
| 02/05/1985 | CA1182013A1 Apparatus for controlling flow of combustion products |
| 01/15/1985 | US4493270 Heating unit |
| 01/02/1985 | EP0129888A2 Air flow controlling apparatus |
| 12/25/1984 | US4489666 Movable air supply for combustion apparatus |
| 11/14/1984 | EP0124945A2 Heat generator |
| 11/06/1984 | US4480558 Adjustable air inlet control system |
| 10/17/1984 | EP0122221A1 Heating device |
| 10/09/1984 | CA1175721A1 Valve for furnace stack pipe |
| 09/11/1984 | US4470401 Valve for furnace stack pipe |
| 07/24/1984 | US4461275 Apparatus and method for burning wood |
| 05/30/1984 | EP0109620A2 Fuel heated heat source |
| 01/24/1984 | US4426993 Valve for appliance combustion air inlet |
| 12/20/1983 | US4421064 Heating boiler |
| 10/18/1983 | US4409956 Thermostat for stoves |
| 10/18/1983 | CA1155387A1 Device for choke adjustment |
| 10/12/1983 | EP0091380A2 Internal-combustion burners |
| 06/14/1983 | US4387700 Woodstove having exhaust flow compensation and a method for providing same |
| 06/14/1983 | CA1148048A1 Apparatus to reduce winter air infiltration into a single family oil heated residence |
| 01/25/1983 | US4369718 Shut-off system for flue gas conduits or air intake conduits in oil and gas fire systems |
| 01/04/1983 | US4366805 Sector control wood-type fuel burning furnace |
| 10/26/1982 | CA1134255A1 Gas or liquid fuel burner with air register control of tangential axial combustion air movement |
| 10/12/1982 | US4353349 Retrofittable energy conserving damper |
| 10/06/1982 | EP0061915A1 Burner with an air regulator |
| 09/07/1982 | US4347832 Controlled air intake apparatus for furnaces and the like |
| 05/11/1982 | US4329137 Device for choke adjustment |
| 04/28/1982 | EP0050506A2 A burner unit with an air regulator |
| 12/22/1981 | US4306538 Automatic air inlet control |
| 09/09/1981 | EP0035089A1 Device for automatic closure of the draft door |
| 06/23/1981 | US4274392 Controlled air intake apparatus for furnaces and the like |
| 04/22/1981 | EP0027175A2 Shut-off system for flue gas exhaust conduits or suction air conduits of oil and gas fireplaces |
| 04/21/1981 | US4262608 Method and apparatus for powered flue products exhaust and preheated combustion air supply |
| 03/04/1981 | EP0024376A1 Heating apparatus |
| 01/21/1981 | EP0022599A2 Automatically closing damper for the injection of combustion air below the hearth of a solid fuel-fired boiler |
| 01/13/1981 | US4244685 Means for automatic closing and opening of the air intake duct of an oil burner |
| 01/06/1981 | US4243375 Gas or liquid fuel burner with air register control of tangential/axial combustion air movement |
| 01/06/1981 | CA1092898A1 Coal fired furnace |
| 01/09/1980 | EP0006319A1 Gas or liquid fuel burner with air register control of tangential/axial combustion movement |
| 05/22/1979 | US4155699 Heat saving device for space heating furnace |
| 04/24/1979 | US4150631 Coal fired furance |
| 08/15/1978 | CA1036692A1 Positive automatic draft control |
| 06/21/1977 | US4030479 Solid fuel heater with blowback prevention means |