Method of utilizing energy sources by pre-heater and re-heater
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Method for thermal and hydraulic coupling of one or more heat producers of heating installation
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Heat exchanger element
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Heating boiler for combustion of fluid and/or gas fuel
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Boiler with spiral heat exchanger for gas and liquid fuel
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Process or boiler for combined heating of a building heating system and a storage tank for domestic water
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Heating boiler for low-pollutant combustion
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Method of providing low pollution combustion of gaseous or aerosol fuel - involves supplying fuel and combustion air to suction side of driven, bladed impeller
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Boiler for the combustion of liquid or gaseous fuels
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Boiler with heat recovery device - has exhaust channel and sound-proof barrier to reduce burner noise
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Multi-shell heating surfaces for boilers and method for producing multi-shell heating surfaces
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Water-heating boiler
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Method and device for lowering the harmful-substance content after heat generators
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Fuel fired heater
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Method and device for recovering heat from exhaust air of driers which contains water vapour
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Coaxial heat exchanger
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District heating double section hot water tank - has main and auxiliary heating coils in upper and lower sections for preheating cold water
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HEAT RECOVERY DEVICE FOR BOILERS
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Solar heating plant - with diaphragm type expansion vessel for gas and liq. in heat carrier circuit
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METHOD AND INSTALLATION FOR THE USE OF HOT EXHAUST GAS FROM HEAT GENERATORS
