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Definition
| Air provided to replace exhaust air |
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Definition
| A change involving extension, addition or change to arrangement, type or purpose of installation. |
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Definition
| heat required to raise 1 pound of water 1 degree Fahrenheit |
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Definition
| the minimum distance through air measured between a heated surface and a combustible material. |
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Definition
| A location not accessible without damaging the structure or a finished surface. Spaces accessible by readily removable panels or doors are not concealed. |
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Definition
| appliance that derives combustion air directly from the outside and discharges all flue gasses to the outside. |
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Definition
| Low point in the system to collect condensate and allow for removal. |
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Definition
| Natural, liquefied petroleum, or manufactured gas or a mixture of these. |
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Term
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Definition
| Burners, burner igniters, or electrical switches capable of igniting flammable vapors. |
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Definition
| Propane or propylene, butanes or butylenes or mixtures of these that are gas at normal pressure but liquid under moderate pressure. |
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Term
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Definition
| A gas tight joint obtained by mechanically tightening to metal surfaces, including flanged, flared, threaded or compression joint. |
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Term
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Definition
| A pipe or conduit for conveying combustion products and air to the atmosphere. |
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