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Method to operate a combustion device in a house or similar building, with fossil fuel furnaces, such as wood or oil furnaces. Outdoor air is supplied to a heat exchanger that is connected to the smoke tube of the furnace, in such an amount that an interior excess pressure is created, as excess air

Method to operate a combustion device in a house or similar building, with fossil fuel furnaces, such as wood or oil furnaces. Outdoor air is supplied to a heat exchanger that is connected to the smoke tube of the furnace, in such an amount that an interior excess pressure is created, as excess air is led out of the interior of the building through one or more exhaust openings, especially exhaust devices, which are located at low places in the building at its outer side. This offers better combustion efficiency, better energy-utilization and a more uniform temperature in the building. A device for operating the method, comprises a fan (23) which takes in air from an inlet (19) near the outer walls of the building, through a tube (24) leading to the furnace, with a heat exchanger (33, 34) enclosing some of the smoke tube (18) of the furnace (17). The fan (23) is dimensioned and operated to create an overpressure in the building. There exists at least one overflow valve (25) placed in the lower parts of the building, near its outer wall, which opens upon a low inner pressure.

대표청구항 ▼

[ What is claimed is:] [1.]1. In a heating system for heating an enclosure having at least one wall comprising a combustion device having a combustion chamber, an air inlet opening into the enclosure for drawing air from the enclosure into the combustion chamber and an exhaust gas outlet for expelli

[ What is claimed is:] [1.]1. In a heating system for heating an enclosure having at least one wall comprising a combustion device having a combustion chamber, an air inlet opening into the enclosure for drawing air from the enclosure into the combustion chamber and an exhaust gas outlet for expelling combustion gasses from the combustion chamber, the improvement comprising:a heat exchanger connected to said exhaust gas outlet:a passageway extending from a location outside the enclosure to the heat exchanger;a fan blowing air from outside the enclosure against the heat exchanger and into the enclosure; and,an exhaust device separate from said exhaust gas outlet in a lower portion of the at least one wall for releasing air from said enclosure when the air pressure inside the enclosure exceeds the air pressure outside said enclosure.