Great resource. Easiest to use that I have seen online.
Big Picture BTU Online Calculator
Calculate BTUs used and fuel costs saved in your browser!
Select wood species from menu. Fill in and edit anything in white to suit your needs.
Wood Type | Cords Burned | MMBTU Burned |
Assumed Wood Burn Efficiency: | Assumed Oil Furnace Efficiency: | Assumed Propane Burn Efficiency: | Local Oil Price (per gal): | Local Propane Price (per gal): |
Total Cords Burned: | Total MMBTU Burned: |
Avoided Oil Use (in gals): | |
Avoided Oil Cost: | |
Avoided Propane Use (in gals): | |
Avoided Propane Cost: |