Patents for F24H 3 - Air heaters having heat generating means (7,733)
10/1990
10/02/1990US4960041 Regulation of atmospheric conditions within a confined space
09/1990
09/24/1990CA2012714A1 Method and apparatus for heating a gaseous fluid by successive heat exchanges
09/20/1990WO1990011002A1 Arrangement for converting electrical energy to heat energy
09/20/1990WO1990010831A1 Fan heater controller
09/12/1990CN2062027U Hot air-condition by coal
09/11/1990US4955359 Furnace with counterflow heat exchange means
09/09/1990WO1990010824A1 Pulse combustion apparatus
09/09/1990CA2028129A1 Pulse combustion apparatus
08/1990
08/28/1990US4951649 Method and apparatus for heating and generating infrared rays
08/23/1990DE4005475A1 Hot air fan with PTC resistance e.g. for space heating - carries out air circulation with fan or blower and its vol. flow can be controlled by damping element
08/22/1990EP0383642A1 Electric heating apparatus
08/22/1990CN2060863U High temp. hot air furnace using electricity to heat
08/22/1990CA2009379A1 Gas heating unit and electrical control circuit therefor
08/21/1990US4950871 Arrangement for heating rooms uniformly trough the equalization of the temperature distribution between the ceiling and the floor regions
08/15/1990CN2060527U Vertical double furnace tank coal hot-blast stove
08/14/1990CA2007875A1 Electric heating apparatus
08/08/1990CN2060211U Horizontal coal hot-air furnace
08/07/1990US4945890 Induced draft warm air furnace with radiant infrared burner
08/01/1990EP0220301B1 Heater with burner and heat exchanger
08/01/1990CN2059974U Heat-exchange type energy-saving air heater
07/1990
07/25/1990EP0281551B1 Apparatus for the oxidation of particles suspended in the air
07/17/1990US4941452 Pulse combustion space heater
07/17/1990CA1271797A1 Canister heater with ptc wafer
07/12/1990WO1990007445A1 Heating appliance
07/12/1990WO1990007444A1 Protective device for extracting impurities
07/12/1990DE3810040A1 Heated decorative strip (dekotherm)
07/11/1990EP0248012B1 A liquid-filled electric radiator
07/03/1990US4939345 Portable hair dryer assembly
07/03/1990US4938203 Pulse combustion apparatus
06/1990
06/28/1990WO1990007091A1 Heat exchanger
06/26/1990US4937432 Apparatus to deliver hot air
06/26/1990US4936505 Gas-fired coaxial water/air vehicle heater
06/19/1990US4935687 Electrical heat exchange device
06/19/1990CA1270510A1 Apparatus and method for localized heating of an object at precise temperatures
05/1990
05/29/1990US4929541 Direct gas fired industrial air heater burner
05/15/1990US4924848 High-efficiency furnace for mobile homes
05/09/1990EP0367695A1 Hot air generating apparatus comprising a catalytic burner
05/08/1990US4922890 Fuel burning furnace
05/03/1990WO1990004745A1 Heat generating motor and warm air and warm water generator using same
05/03/1990DE3831201A1 Fan heater
05/03/1990DE3830180A1 Fan heater with a receiving housing
05/03/1990DE3830179A1 Fan heater
05/03/1990DE3830178A1 Fan heater
05/02/1990EP0366615A2 Radiant or radiant/ventilating air-conditioning pre-fabricated elements and air-conditioning installation including said elements
05/01/1990US4921163 Method and apparatus for temperature control of heating and cooling plants
04/1990
04/24/1990CA1268168A1 Air-to-air heat exchanger
04/24/1990CA1268162A1 Portable fan device for forced air heating
04/24/1990CA1268161A1 Portable fan device for forced air heating
04/19/1990WO1990004138A1 Method and device for conditioning supply air
04/19/1990WO1990004137A1 Electric heater fan for heating and humidifying environmental air
04/18/1990CN2056225U Coal-fired pipe stove
04/17/1990US4917074 Direct gas-fired heating and ventilation method and apparatus
04/11/1990EP0363340A2 Method and device for conditioning supply air
04/11/1990EP0362719A2 Hot-air manual welding device
04/11/1990CN2055699U Multifunctional hotair-blasting machine for electric roast and bake stove
04/04/1990CN2055578U Multiple socketed tube electric-heating stove
03/1990
03/27/1990US4912300 Control device for heating appliance having two operating regimes
03/27/1990CA1267182A1 Warming fan
03/21/1990EP0276275B1 Heat exchanger, particularly useful as a radiator in heating plants
03/21/1990EP0224611B1 Device for applying or spraying viscous materials
03/20/1990US4909307 Regenerative bed heat exchanger
03/08/1990WO1990002299A1 Air heater
03/07/1990EP0254716B1 A window-sill with a built-in heat emitter
03/06/1990US4905661 Heat exchanger
02/1990
02/28/1990EP0355354A1 Fan-forced heater
02/26/1990EP0307460A4 Compact forced air heater.
02/22/1990DE3827855A1 Fan heater
02/20/1990US4902222 Gas burner
02/13/1990US4900898 Electric space heater
02/08/1990DE3826338A1 Electrically operated space-heating system
02/07/1990CN2052501U Horizontal hot-blast stove of burn coal
02/06/1990US4899032 Electric heating element utilizing ceramic PTC resistors for heating flooring media
01/1990
01/30/1990US4896411 Method of making a multiple cell condensing heat exchanger
01/30/1990CA1265038A1 Flue gas/combustion air heat exchanger
01/24/1990CN2051726U Household electric heating device by means of radiation
01/17/1990EP0350528A1 Radiator
01/11/1990WO1990000238A1 Furnace
01/10/1990CN2050953U Smoke exhausting air heating device for coal-fired reciprocating furnace
01/10/1990CN1038693A Hot-air type heater
01/02/1990US4890598 High efficiency blower
01/02/1990CA1264178A1 Heating unit
12/1989
12/27/1989EP0347570A1 Prevention of condensation
12/19/1989US4888469 Double-regime electric heating convector
11/1989
11/29/1989EP0343938A1 Space heating & ventilating systems for buildings
11/29/1989EP0343323A1 Air heater
11/08/1989EP0340692A1 Road surface drying apparatus
11/07/1989US4879453 Self-regulating baseboard heater and system
11/02/1989EP0339883A1 Water closet blowing warm air and water closet unit attachable to toilet room
10/1989
10/31/1989US4877012 Apparatus for producing hot gas for the shrinkage of synthetic resin foils
10/25/1989EP0338830A2 Improved electron-beam curable polyurethane compositions, and method
10/24/1989US4876436 PTC air heater employing triangular PTC heating elements
10/11/1989CN2045874U Constant temperature working table
10/10/1989US4873422 Wall mounted heater with plug mount and support
10/10/1989US4873421 Liquid-filled electric radiator
09/1989
09/28/1989DE3908512A1 Fan
09/28/1989DE3908511A1 Fan
09/28/1989DE3908498A1 Fan
09/28/1989DE3908493A1 Fan
09/28/1989DE3908492A1 Fan
09/27/1989EP0333959A1 Heater
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