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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 ...
The Family Handyman on MSN

Furnace Shopping: Best Brands and What Else To Look For

Shopping for a furnace? Let us help you narrow the field with an overview of the best furnace brands for energy efficiency.