Annual Heating Cost with Natural Gas

Enter numbers only, do not use any characters such as : $ % ,
Enter values then click "Calculate"

Example : Home with a heat loss of 64000 btuh, furnace is 60%, average gas rate is $1.33

BTU output required to heat your home :

AFUE Rating of Gas Furnace :


$ per Therm :

$$


Use same value for each system you compare

Current TRANE models range 80.0 to 96.7
An old furnace may be lower than 50

Vectren Energy Delivery = 1.33 (average Nov 2006 thru Apr 2007)

$$

Estimated Annual Heating Cost With Gas Furnace : $

Notes :

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