Annual Natural Gas Savings Calculator

How much money can I save if I buy a new furnace?
The following form is useful in determining an approximate savings as the A.F.U.E (Annual Fuel Utilization Efficiency) deteriorates, the cost to run existing equipment increases.

The savings calculator is only a guide. Costs and savings can vary widely.

Instructions: To estimate your potential fuel savings, determine your existing furnace size in the form below - make an estimate of its current A.F.U.E and compare that number to a new unit's A.F.U.E.
Existing Furnace
A.F.U.E. When New	--Select-- 90% 80% 70% 65% 60% 55%
BTU	--Select-- 30,000 50,000 60,000 80,000 90,000 100,000
Years Old	--Select-- 1-8 Years 9-17 Years 18+ Years
New Furnace
A.F.U.E. New	--Select-- 90% 80% 70% 65% 60% 55%
BTU	--Select-- 30,000 50,000 60,000 80,000 90,000 100,000