High-emissivity coatings increase surface emissivity to values between 0.85 and 0.95, remaining stable even at temperatures exceeding 3,000 degrees Fahrenheit. The coating absorbs radiant and ...
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What Are Furnace Energy Efficiency Ratings?
The concept of the “high-efficiency furnace” in popular consciousness dates back to the 1980s. That’s when the National Appliance Energy Conservation Act of 1987 required all new furnaces be 78 ...
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