With today’s continually advancing building engineering technology, design professionals are presented with a multitude of options for HVAC design. With such variety comes the burden of comprehending ...
On July 1, 2002, manufacturers of fire, smoke, and combination fire/smoke dampers must have their products comply with the new testing requirements of UL 555 and UL 555S. These new testing ...
Installing a lock-top chimney damper is a common project among do-it-yourself homeowners. As fireplaces and chimneys age they tend to deteriorate from use, foundation shifting, and weather. This ...
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