( Yearly totals can also be used )

1. Current monthly heating bill:

2. Divided by the price paid per unit:
          Unit = Gallon of propane ( LP )
          Gallon of fuel oil
          KWH of electric (average unit cost)
          Therm of natural gas (average unit cost)

3. Equals current monthly fuel consumption:

4. Multiply by BTU per unit of this fuel:
                                              Propane 91,000          BTU/gal
                                              Fuel Oil 140,000          BTU/gal
                                              Electric 3,412               BTU/kwh
                                              Natural Gas 100,000  BTU/therm
 

5. Equals total BTU’s used to heat home:

6. Divided by average BTU content / bushel of corn:

                                            Corn     8,000 BTU/lb (56lbs.=1bu.)

7. Equals bushels of corn required to heat home:

8. Multiply by the price per bushel of corn:

9. Equals cost per month to heat with shelled corn:

10. Top line (1.) 

11. Minus bottom line (9.)

12. Equals SAVINGS per MONTH:

$_____________

$_____________

______________                gal / kwh / therm

_____,__________  BTU

______,_______,_______

448,000 BTU

______________

$_____________

$_____________

$_____________ 

$_____________

$_____________