Here is a simple formula you can use to find your "cost-per-million BTUs" of useable energy.
This formula takes into
account the following factors:
1.Cost per unit of fuel
2.Energy content per unit of fuel
3.Seasonal heating efficiency
Cost per million BTUs of useable energy =
fuel cost (per unit) x 1,000,000
divided by
fuel energy content per unit (BTU) x (seasonal heating efficiency)
Cost per unit of fuel is in Dollars
Energy Content Unit of Fuel in BTUs
Seasonal Heating Efficiency is in decimal form (70% = 0.7)
(2.85
x 1,000,000)
divided by
(139,000 x .85) =
$24.12
per million BTUs
$24.12 x 100 = $2412.00
to heat this home with fuel
oil for just one season!
Example
2 - Propane:
• Propane $2.39 per
gallon
• Energy Content per gallon = 91,690 BTUs
• Seasonal Heating Efficiency = 85%
(2.39 x 1,000,000)
divided by
(91,690 x .85) =
$30.67 per million BTUs
$30.67 x 100 = $3067.00 to heat this home with propane
Example
3 - Corn
• Corn $2.39 per
bushel
• Energy Content per bushel = 500,000 BTUs
• Seasonal Heating Efficiency = 85%
(2.39 x 1,000,000)
divided by
(500,000 x .85) =
$5.62 per million BTUs
$5.62 x 100 = $562
Fuel oil cost
@ $2412 (- $562) = $1850
savings using corn
Propane cost @ $3067 (- $562) = $2505
savings using corn
By burning shelled corn,
a renewable commodity, the furnaces produce an ecologically safe home heating
system while benefiting the local economy by generating business for farmers.
Your home's thermostat electronically controls the fuel feed to provide a constant
temperature and shuts down when the fuel supply is depleted.
The storage bins hold up to a 10 day supply of fuel which is automatically fed
into the combustion chamber. The absence of creosote build up also eliminates
the possibility of chimney fires