The equivalency of a pellet ton to a cord of wood is arbitrary. However, values range from 1 ton to 1.5 tons per cord of wood.
According to the EIA, natural gas prices in the US are reported via Therms, MMBtu, or cubic feet.
Ccf—the volume of 100 cubic feet (cf)
M—one thousand (1,000)
MM—one million (1,000,000)
Mcf—the volume of 1,000 cubic feet
MMBtu—1,000,000 British thermal units
Therm—One therm equals 100,000 Btu, or 0.10 MMBtu
$ per Mcf divided by 10.36 equals $ per therm
Please note, select the efficiency pull down to produce different comparisons
Efficiency means how much fuel is converted by a particular heating unit (wood stove, furnace, boiler, electrical wall heater, etc.) to heat. However, there are many variables that affect the efficiency rating of a specific heating unit.
Fuel oil: Average AFUE (Annual Fuel Utilization Efficiency) ratings for a new boiler or furnance are between 80% and 98%.
Pellets (quality and premium wood pellets) - 8,350 Btus/pound or 16,700,000 Btus per ton
Fuel Oil#2 - 139,600 Btus
Electricity 1 kw-hour - 3,412 Btus
Btu calculations per this Web page for a cord of wood is as follows:
(lbs/cu.ft.)1 x 852 (cu.ft./cord) = (lbs/cord)
(lbs/cord) x 62003 (btu/lb) = (mbtu/cord)
1 Weight of wood species with a 20% moisture content 2 The volume of a cord of wood (4'x4'x8') is 128 cubic feet. Because the size and shape of each piece of wood in a cord is different and air space exists between pieces this web page uses a net measurement of 85 cubic feet. 3 Low heat value
Fuel Heating Calculator
Select your wood species, climate zone, and set the square footage to heat. Fuel prices and efficiencies can be selected and adjusted below.