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Heating Services |
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How Does It Work? |
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The system Gas ducted systems consist of: |
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A furnace fuelled by natural gas or liquefied petroleum gas (LPG). Air is drawn in by a fan, and passed over a heat exchanger to warm it. Furnaces are ususlly installed in the roof space or externally, but can also be placed under the floor or even in internal cupboards if space is limited. |
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Ducting distributes the heated air through a home. It is usually laid above the ceiling or under the floor, but can be placed between floors or in other cavities, depending on available room. |
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Registers (also called 'outlets' or 'vents'), attached to the floor or ceiling, or sometimes the wall, direct warm air into rooms. Provided ceiling registers are corrrectly positioned, and of appropriate design, they will provide a similar heating effectiveness to floor registers. Floor registers are usually located near outside walls to allow heat to fully flow back through the house to the return air grille. Ceiling registers should be located centrally in a room, or between the centre and external walls. |
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A return air vent (grille) recirculates air to the furnace, begining the cycle again. The grille should be located at or near floor level-never in the ceilin. Filters can be attached to the grille to reduce dust circulation. If filters are added, griller must be made larger. In zoned systems (see diagram) the grille must be readily accessible to your main living area. |
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