Your existing Natural Gas Furnace has died. A new Natural Gas Furnace with a similar efficiency of 80% to the one that died will cost $5100.00. A new High Efficiency Natural Gas Furnace with efficiency of 97% could alternatively be installed at a cost of $6700.00. If your heating consumption is 1200 terms of Natural Gas per year at a cost of $1.54 / therm, how long would simple payback be for the increased investment of a High Efficiency Gas Furnace?

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To calculate the simple payback period for the increased investment in a highefficiency gas furnace ... View the full answer