Info from Deep Portage, which heats the Main Lodge with a Garn WHS3200 and Wood Gun E500, and saved over $1000 in one week:
This week at Deep Portage Saturday Dec. 7-Friday 13 we burned seven cords of wood to heat the Main Lodge (54,000 square feet plus). It was between -20F and 6 F for most of this period. Cost $170 per cord x 7= $1190, we used $157 dollars of electricity, $360 in labor ( night and evening burners), for a total of $1707.00.
If we had been using propane -- We used 126 million BTUs of wood - a gallon of propane has 91,502 btus at 100% efficiency, we are at 60% with our slant fins; therefore we would have used 1928 gallons of propane X $1.42 a gallon (with all charges) = $2738 dollars. We saved over 1000 dollars in one week. CO2:1928 X12.69 lbs 12.23 tons of CO2 not released (electricity no subtraction because of the green credit program). Local job ramifications [local wood, local jobs vs propane, most $ goes elsewhere]. Using renewables and saving fossil fuels for future generations… Priceless.
This week at Deep Portage Saturday Dec. 7-Friday 13 we burned seven cords of wood to heat the Main Lodge (54,000 square feet plus). It was between -20F and 6 F for most of this period. Cost $170 per cord x 7= $1190, we used $157 dollars of electricity, $360 in labor ( night and evening burners), for a total of $1707.00.
If we had been using propane -- We used 126 million BTUs of wood - a gallon of propane has 91,502 btus at 100% efficiency, we are at 60% with our slant fins; therefore we would have used 1928 gallons of propane X $1.42 a gallon (with all charges) = $2738 dollars. We saved over 1000 dollars in one week. CO2:1928 X12.69 lbs 12.23 tons of CO2 not released (electricity no subtraction because of the green credit program). Local job ramifications [local wood, local jobs vs propane, most $ goes elsewhere]. Using renewables and saving fossil fuels for future generations… Priceless.