Trane 90 Plus High-Efficiency Gas Furnace | Heating and Cooling
Trane 90 Plus High-Efficiency Gas Furnace – This is a Trane High-Efficiency gas furnace. It is also called a Trane 90 plus gas furnace because it offers efficiency ratings up to 90 percent plus. Gas or oil furnaces generally cannot achieve efficiency ratings over 95% because of impurities in the fuel including moisture. This is the reason why no fossil fuel furnace sold to the general public has a rating of more than 95% efficient.
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