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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 ...
Heating, Air-conditioning & Refrigeration Distributors International, the Plumbing-Heating-Cooling Contractors–National Association, and the Natural Gas Association of Georgia argue that the ...
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