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ANSI Z 21.47-2012

ANSI Z 21.47-2012

Gas-Fired Central Furnaces (same as CSA 2.3)

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This standard applies to automatically operating gas-fired central furnaces for installation in residential, commercial, and industrial structures including furnaces for Direct Vent, Recreational Vehicle, Outdoor, and Manufactured (Mobile) Homes. These furnaces may include a cooling unit.

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