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Everything You Need to Know About a Fireplace DamperWhen a fire is lit, an open damper lets the smoke, soot and gases escape out the chimney. When the damper is closed, it prevents cold air from entering through the chimney. Here’s everything you ...
The Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) has published the fourth edition of its HVAC Duct Systems Inspection Guide.
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