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Commercial Warm Air Furnaces | Midpage
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Code of Federal Regulations
Title 10
Chapter II
Subchapter D
Part 431
Subpart D
Commercial Warm Air Furnaces
431.71
Purpose and scope.
431.72
Definitions concerning commercial warm air furnaces.
ECFR377af1b722aae94
Test Procedures
ECFR935ba342216877b
Energy Conservation Standards