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combustion airThe ductwork installed to bring fresh outside air to the furnace and/or hot water heater. Normally, two separate supplies of air are brought in: one high and one low.
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combustion airAir required for burning by appliances containing a flame.
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combustion airThe duct work installed to bring fresh, outside air to the furnace and/or hot water heater. Normally 2 separate supplies of air are brought in: One high and One low.
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combustion airair used in the combustion process. Air contains oxygen, which is required to combust fuel.
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combustion airAir that provides the necessary oxygen for complete, clean combustion and maximum heating value. Condensor
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combustion airAir that combines with fuel in the combustion process. Refers also to the supply of outdoor air that supports this process.
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