The Sheet Metal and Air Conditioning Contractors' National Association (
SMACNA; ... ANSI, the American National Standards Institute, has accredited
SMACNA as a ...
On June 9, 2015, the California Energy Commission determined that the
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Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) ...
1 HP = 746 Watts or 2544 BTUH. 1 gal Heating Oil = 140,000 BTU (Typ.) © 2005,
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