Wood Fuel Cost Calcutator
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This calculator is offered as a means of converting logs priced by volume to price per kWh so that prices can be compared with that for other fuels such as gas, electricity or heating oil (using our Heating Oil Cost Calculator ).


Enter the number of cords of wood that you have been offered and the total cost and the price per kWh will be calculated.

Alternatively enter the volume of wood in the next section.

Units
Quantity

Price£
Load Size x x metres
Type of Wood
Burner Efficiency%
  
Cubic Metresm3
Cost per Cubiic Metre£
Cost pence per kWh
EnergykWh

Wood SpeciesHeat Value (MMBTU/Cord)kWh/m3
Red Oak16.81355.728
Paper Birch14.211146.720
Cherry141129.774
Elm13.651101.529
Norway Pine11.97965.956
Apple18.551496.950
White Ash16.521333.132761
Generic Softwood11.5928.028
Generic Hardwood181452.566

Source

MMBTU/Cord = Million BTU = 293.071 kWh

Cord - the amount of tightly piled wood in a stack 4 feet wide and 4 feet high by 8 feet long (128 cubic feet).

= 1.22 x 1.22 x 2.44 meters

= 3.631696 m3

1 MMBTU/Cord = (293.071/3.631696) = 80.698109 kWh/m3

Efficiency of wood burning stove = about 70%

Source:http://www.chimneysweeponline.com/wscompe.htm