Scope This standard applies to gas-fired duct furnaces and unit heaters of any input for use with natural gas, liquefied petroleum gases and convertible for use with natural gas and liquefied petroleum gases.This standard covers self-contained, automatically controlled, vented unit heaters and duct furnaces intended for installation in locations where flammable gases or vapors are not generally present.Unit heaters shall have an int
- Published:
- 04/01/2000
- Number of Pages:
- 16
- Note:
- This product is unavailable in Russia, Ukraine, Belarus
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