Patents for F24H 9 - Details (27,146)
11/1991
11/07/1991DE4111621A1 Floor bracket for electric storage heater - consists of support plate and baseplate with connecting plate
11/06/1991CN2088218U High-efficient energy-saving furnace
10/1991
10/31/1991WO1991016576A1 A method of regulating a gas-fired heat-generating appliance, and the relative appliance
10/30/1991CN2087760U Energy-saving hot-air furnace
10/30/1991CN2087759U 热水器壳体 Heater housing
10/30/1991CN2087756U Pumpless forced-circulation water heating boiler
10/29/1991US5060630 Valve seat for automatic control system for water heaters
10/29/1991US5060601 Water-tube boiler and a heating installation equipped with such a boiler
10/24/1991DE4012655A1 Resistor holder for anticorrosive electric water heater - has resistor body inserted body inserted in sleeve of electrically insulating material, insertable in compression plate
10/23/1991CN2087315U Water heater for shower bath
10/23/1991CN2087314U Natural circuit accelerating device
10/23/1991CN2087313U Energy-saving smokeless stove for curing tea-leaves
10/22/1991US5058443 Process for testing operational components in heaters and testing device for this purpose
10/16/1991EP0452050A1 Electrical storage heater
10/16/1991EP0451234A1 Boiler heated by liquid or gaseous fuel.
10/16/1991CN2086880U Returning water controller of atmospheric boiler
10/16/1991CN2086879U Water heater with automatic fume reducing unit
10/16/1991CN1055420A Automatically start-stop pressure-control device of pressureless hot-water boiler
10/16/1991CN1055419A Pressureless non-expansion water tank hot-water boiler network system
10/16/1991CN1055418A Pumpless forced circulation boiler for hot-water heating
10/08/1991US5054437 Storage tank for water heaters and the like with collector outlet dip tube
10/02/1991EP0448838A1 Peripheral and thermally stressed closing and/or connecting element for a boiler
10/02/1991CN1055051A Temp. regulating device at far and near distance for water heater
10/01/1991US5053978 Automatic boiler room equipment monitoring system
10/01/1991CA1289826C Water heater tank construction
09/1991
09/26/1991DE4009486A1 Heating boiler for oil or gas fuel - has firebox partially surrounded by water jacket and turbulence generator fitted to flue
09/26/1991DE4009098A1 Pipe holding connection - has connecting duct in middle section and space for pipes extend through
09/26/1991DE4005450A1 Relay control for low-temp. space heating boiler - closes mixer of hot and cold water when boiler temp. falls short of lower min. value
09/25/1991CN2085511U External fire-box
09/25/1991CN2085510U Water heating boiler
09/25/1991CN2085509U Forced flue gas exhauster for water heater
09/18/1991EP0446671A1 Boiler
09/18/1991CN2085048U Multifunctional horizontal coal hot-blast stove
09/18/1991CN2085047U Efficient energy-saving boiler without grate
09/17/1991US5049240 Vaccum distillation system
09/12/1991DE4019397A1 Central heating safety valve with outlet elbow fitting - which is attached to valve by spring ring
09/12/1991DE4007520A1 Calibration of control device for a boiler - by first establishing percentage change of heat output over 1 second
09/11/1991EP0445833A1 Housing and holding device for a heat pump
09/04/1991CN2084181U Smoke-tube type high efficient water heating stove
09/04/1991CN2084179U Vertical boiler
09/04/1991CN2084176U Heater for oil heat carrier
09/03/1991US5044705 Insulation structure for appliances
08/1991
08/29/1991DE4005825A1 Valve armature for radiator in single pipe installation - has gravity-operated anti-siphon valve consisting of captive ball in grille seating
08/29/1991DE4005745A1 Valve armature for radiator - has flow and return connections together with valve connections and connections to radiator
08/28/1991EP0443995A1 Method to manufacture sealing nipples or plugs
08/28/1991CN2083728U Gas stove
08/28/1991CN2083727U Quick setting mould coal heating stove
08/28/1991CN2083726U 沼气热水器 Gas water heater
08/27/1991CA1288038C Gas burning furnace
08/22/1991WO1991012468A1 Boiler
08/22/1991DE4100008A1 Electrical heating apparatus for corrosion fluid
08/22/1991CA2036601A1 Method to manufacture sealing nipples or plugs
08/21/1991EP0442085A1 Electric continuous-flow heater with circuit breaker
08/14/1991EP0441761A2 A radiator coupling
08/14/1991DE4000850A1 Sectional boiler for heating water - has vertical sections with water channels to form combustion chamber and gas flue
08/14/1991CN2082837U Hot-water heating stove
08/14/1991CN2082836U Shower shower water heated by waste heat of domestic coal stove
08/14/1991CN2082835U Magnetic device for water heater
08/14/1991CN2082834U Chemical applying device for deoxidisation of hot water boiler
08/13/1991US5038752 Boiling water dispenser having improved water temperature control system
08/10/1991CA2027480A1 Fan control arrangement for a two stage furnace
08/07/1991CN2082378U Gas combustion auto ignation quick water heater
08/07/1991CN2082376U Protective devices for electric water heaters
08/01/1991DE4011111C1 Panel radiator connection - has feed and return connections joined to connection piece linking two radiator panels and screwed in place
08/01/1991DE4002292A1 Regulating heating of storage heater - starting before lower night level stops at time necessary to attain desired room temp. and hot tap water
07/1991
07/31/1991CN2081937U Synchronous start-stop apparatus for outgoing water and returning water
07/24/1991CN2081510U Coal hot-blast stove
07/17/1991CN2081062U 热水锅炉 Hot water boiler
07/17/1991CN2081061U Pressurization type gas heater for water
07/16/1991WO1991010852A1 Apparatus for measurement and control, respectively, of temperature and/or pressure
07/16/1991US5033107 Electric sauna heater
07/11/1991WO1991009749A1 Heat-exchangr for a storage heater
07/10/1991EP0436439A1 Back draught security gas valve for pilotless hot water heater
07/09/1991US5029605 Fluid vessel overflow system
07/03/1991CN2080150U Program control gas burning water heater
07/03/1991CN2080149U Heat pipe type ordinary hot water boiler
07/03/1991CN2080148U Hot gas burning heat-guide oil stove
07/02/1991US5027789 Fan control arrangement for a two stage furnace
07/02/1991CA1285585C Device for connecting, on the outside of a structure, an air-and watertight apparatus using gas
06/1991
06/27/1991DE3942732A1 Waermetauscher fuer eine standheizung Heat exchanger for a pre-heater
06/27/1991DE3942527A1 Central heating boiler water side connection - has horizontal flow shaft as branch duct to return flow union duct
06/26/1991CN2079723U Temp adjusting device for water heater
06/26/1991CN2079722U Fast water heater by use of gasificating fuel oil
06/19/1991CN2079271U Side-setting double burning water tube ordinary pressure water heating boiler
06/18/1991US5024595 Furnace protective device
06/12/1991EP0432020A1 Air-tight heater with forced draft using an anti-condensation thermocontact
06/11/1991US5022624 Adjustable support for hot water tanks, or the like
06/11/1991CA1284811C Heater mechanism with thermoelectric power generator
06/06/1991CA2007448A1 Anti-syphon tank insulator & handy fittings applicator
06/04/1991US5020760 Hot water tank bracket assembly
05/1991
05/30/1991WO1991007624A1 Heater for liquid
05/29/1991EP0429371A1 Shell for a boiler for heating with heat-conveying fluid
05/29/1991CN2077971U Pressureless hot-water heating boiler
05/29/1991CN2077969U Electric water heater
05/29/1991CN2077950U Pressure protector for steam boiler
05/28/1991US5020127 Tankless electric water heater
05/23/1991DE4036316A1 Reducing nitrogen oxide emission from premix gas burners - by specific ratios of component sizes and spacings
05/22/1991EP0428341A1 Boiling water units
05/22/1991CN2077527U Multipurpose energy-saving water-heating stove
05/16/1991DE4034917A1 Circulating water heater with copper heat exchanger - is connected by special pipe layout with pump and three way valves to floor-heating system