Older furnaces, unsurprisingly are less efficient both on Gas and Electrical Consumption. Furnaces typically last about 20 years before they need to replaced. Depending on the AFUE rating of your furnace, you can calculate how much money is being lost compared to a newer more efficient furnace. An estimate below will give you an idea.

** 96% Hi- Efficiency furnace = 4% loss or $4.00 for every $100.00 of Energy input **

**92% Hi- Efficiency furnace = 8% loss or $8.00 for every $100.00 of Energy input**

**80% Mid-Efficiency furnace = 20% loss or $20.00 for every $100.00 of Energy input**

** 65% Low Efficiency furnace = 35% loss or $35.00 for every $100.00 of Energy input **