Patents
Patents for F24B 5 - Combustion-air or flue-gas circulation in or around stoves or ranges (978)
07/1991
07/24/1991CN2081495U Fast burning smoke-eliminating accumulated temp. coal-saving stove
07/10/1991CN2080627U Combination energy-saving stove
05/1991
05/14/1991US5014680 Self-powered automatic secondary air controllers for woodstoves and small furnaces
05/02/1991DE3935846A1 Combustor for wood burning furnace - includes rear and bottom counterflow air channels and front afterburner chamber with catalyser
04/1991
04/23/1991US5009219 Heating device
03/1991
03/28/1991DE3931267A1 Domestic oven door unit - has primary air inlet grill and secondary air channels in frame members
02/1991
02/21/1991DE3927378A1 Wood-burning domestic stove - has primary air supply to fire-box and secondary air supply injected into flue
02/20/1991CN2071761U Tower type fire grate energy-saving range
12/1990
12/27/1990CA1278231C High efficiency solid fuel burning stove
11/1990
11/07/1990EP0314722B1 Oven, in particular for burning solid fuels
11/07/1990CN2065289U Dual-purpose self-exhausting coal stove
10/1990
10/31/1990DE4012363A1 Wood-burning stove with two combustion chambers - has secondary combustion air supplied through hollow wall
09/1990
09/12/1990CN2062019U Hot-air warming range
08/1990
08/30/1990DE3906976A1 Solid-matter gasification boiler producing power and heat
08/16/1990DE4003779A1 Stove with combustion chamber - is designed with exhaust and secondary air channels having outlet to flue and to open air
08/16/1990DE3927803A1 Solid fuel heater insert for tiled oven - has combustion chamber with exhaust guide block fitted under cover and leading flue
07/1990
07/17/1990US4941451 Solid fuel burning heater
06/1990
06/02/1990CA2004553A1 Heating
05/1990
05/15/1990US4924847 Combustion system
05/08/1990US4922889 Pelletized fuel burning heater
04/1990
04/04/1990EP0361448A2 Combustion device for wood
03/1990
03/07/1990EP0252965B1 Solid-fuel stove
02/1990
02/07/1990CN2052488U Multi-function domestic stove for warming
01/1990
01/31/1990CN2052106U Multifunctional gas producer with downward flue-gas duct
01/10/1990CN2050941U Heated air circulation stove for heating and cooking
11/1989
11/29/1989CN2048553U Multi-purpose honeycomb briquet stove
11/07/1989US4878478 Wood burning stove
09/1989
09/26/1989CA1260786A1 Heating system
08/1989
08/17/1989DE3903807A1 Stove insert
08/15/1989US4856491 High efficiency solid fuel burning stove
08/08/1989US4854298 Secondary combustion device for woodburning stove
08/03/1989DE3902091A1 Tiled stove heating insert
08/02/1989CN2042164U Multifunctional domestic high-efficiency coal-saving stove
07/1989
07/12/1989EP0204704B1 Combustion apparatus for solid fuel
05/1989
05/24/1989CN2038205U Energy saving combustion supporting dust canceling unit for kitchen range
05/23/1989US4832000 Wood-burning stove
05/10/1989EP0314722A1 Oven, in particular for burning solid fuels.
05/09/1989CA1253760A2 Solid fuel heating appliances
05/03/1989CN1004100B Coal-burning gas producer
03/1989
03/01/1989CN2033475U Double chimney coal economizing stove
02/1989
02/22/1989CN2033093U High-efficiency energy-saving multipurpose coal stove
02/08/1989CN2032293U Fume-exhausting and energy-saving additional apparatus used for stove and range
02/01/1989CN2031883U Cooking stove with hot-air circulation flow to heat water
12/1988
12/21/1988EP0295756A2 Heating device
12/07/1988CN87103844A 煤炉 Coal stove
11/1988
11/30/1988CN88203049U Heating furnace with two sandwiches
11/23/1988CN88212119U Domestic negtwe-pressure combustion coal stove
11/22/1988US4785747 Gasifying burner for a solid fuel heating apparatus
11/17/1988WO1988008942A1 Oven, in particular for burning solid fuels
10/1988
10/25/1988US4779607 Stove
10/19/1988CN88210761U Safe and coal-sawing honeycomb briquette stove
09/1988
09/27/1988US4773386 Solid fuel burning induced draft stove
09/27/1988US4773385 For providing an air supply to a heater unit
09/21/1988CN87216128U Fire-holding back type reinforced warm-keeping stove
09/15/1988DE3706937A1 Controllable stove
09/13/1988CA1241883A1 Combuster wood burning stove
09/08/1988DE3705406A1 Solids gasification heating furnace
09/07/1988WO1988006700A1 Downdraft woodstove
09/07/1988CN87216195U Honeycomb stove with secondary duct and double-lay hopper
08/1988
08/30/1988US4766876 Wood stove
08/25/1988DE3704649A1 Grateless stove
06/1988
06/08/1988CN87205967U High efficiency coal-saving stove
05/1988
05/31/1988US4747781 Combustion system
05/11/1988DE3638361A1 Heating device
05/03/1988CA1235969A1 Solid fuel heating appliances
04/1988
04/27/1988CN87214480U Household combinative heater by fume
04/26/1988CA1235618A1 Wood or coal burning heater
04/19/1988US4738241 Woodburning stove with economizer
04/12/1988US4736730 Heating system
01/1988
01/27/1988EP0254321A2 Stove for solid fuel
01/21/1988DE3723531A1 Heating device
01/20/1988EP0252965A1 Solid-fuel stove.
01/13/1988CN87206153U Domestic t shape heating furnace
12/1987
12/30/1987CN87207925U Coal range with two layers of grate
12/15/1987US4712491 Process and apparatus for the controlled burning of a vertical stack of solid fuel
11/1987
11/24/1987US4708069 Solid fuel heating appliance
10/1987
10/31/1987CN86209461U High efficient heating boiler without pressure
10/07/1987EP0240445A1 Sectional-type cast iron boiler for solid fuels comprising a fireproof afterburning channel
09/1987
09/30/1987CN86205208U Coal-saving stove lining
09/12/1987CN86204168U Waste heat reclaimer for household coal-burning stove
09/09/1987EP0235995A1 Improvements in and relating to fireboxes
09/02/1987EP0162112A4 Solid fuel heating appliances.
08/1987
08/27/1987DE3606125A1 Heating apparatus for solid fuels
08/27/1987DE3605644A1 Tiled-stove insert
08/26/1987CN86200170U Coal-saving stove with spiral sleeve
08/25/1987US4688545 Stove
08/12/1987EP0231424A1 Air heating stove for solid fuel
07/1987
07/16/1987WO1987004232A1 Solid-fuel stove
07/07/1987US4677965 Wood or coal burning heater
06/1987
06/16/1987US4672946 Secondary combustion device for woodburning stove
06/04/1987DE3542384A1 Device for better utilisation and deflection of the energy arising during the combustion process
05/1987
05/19/1987US4665890 Heating system
05/19/1987US4665889 Woodburning
04/1987
04/21/1987US4658801 Stove with multiple chambers
04/21/1987CA1220686A1 Combination wood-fired boiler and storage apparatus
03/1987
03/24/1987US4651709 Fuel burning stove
03/04/1987EP0212212A2 Insert for a tiled stove
03/03/1987US4646713 Smoke-incinerating woodstove
03/03/1987US4646712 Solid fuel heating appliances
02/1987
02/25/1987EP0211064A1 Solid fuel heating apparatus
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