PELLET SPECS Pellet Fuels Institute
The Pellet Fuels Institute has designated the
standards listed below for pellets.
Compliance to the standards by pellet
manufacturers is voluntary.
PREMIUM GRADE: Less than 1% inorganic
COMMERCIAL GRADE: More than 3%
inorganic ash content.
DIMENSION: Diameter of 1/4 inch to 5/16 inch
LENGTH: Less than or equal to 1.5”.
FINES CONTENT: Not more than 0.5% by
weight; must pass through 1/8-inch screen.
SODIUM ADVISORY: Natural uncontaminated
wood has less than 300 ppm of water-
soluble sodium. Larger amounts may be
found in funnels made from particleboard,
agricultural residues, paper and other
materials, and wood contaminated with salt.
FUEL EMISSION LEVELS VARIOUS FUELS
Pounds per Billion Btu of Energy Input
Pollutant Natural Gas Oil Coal WOOD PELLETS WOOD CHIPS
Carbon Dioxide 117,000 164,000 208,000 0 0
Carbon Monoxide 40 33 208 707
Nitrogen Oxides 92 448 457 12 188
Sulfur Dioxide 1 1,122 2,591 23 23.5
Particulates 7 84 2,744 23 TO 141 70.5 TO 3,760
Mercury 0.000 0.007 0.016 <0.0011 <0.0011
NOTE: Burning of biomass such as wood pellets also emits CO2; however, unless there has been a
change in land use, it is considered that CO2 emitted from biomass is removed from the air by new growth,
and therefore it should not be included as a CO2 contributor.
Fossil fuels emissions data from
The United States Department of Energy
Wood pellet and Wood Chip test data reference from:
Emission factors and emissions from residential biomass combustion in Sweden
The Swedish Environmental Protection Agency
Phone: + 46 (0)8-698 10 00, Fax: + 46 (0)8-20 29 25
Address: Naturvårdsverket, SE-106 48 Stockholm, Sweden
ISBN ISSN © Naturvårdsverket 200
|Wood pellets based on 40lbs./cu.ft.
1 BUSHEL EQUALS 1.2444 CU FT.
1 BUSHEL WOOD PELLETS WEIGHS 49.776LBS.
1 TON OF WOOD PELLETS EQUALS 40.2 BUSHELS
CORN BASED ON 7000 BTU/LB @ 13% MOISTURE
WOOD PELLETS BASED ON 8500 BTU/LB.
BUSHEL CORN 392,000 BTU
BUSHEL WOOD PELLETS 423,104 BTU
PREMIUM WOOD PELLETS 2/3RDS LESS ASH
STANDARD WOOD PELLETS SAME ASH
|2015 Heating pellet test results
As you know GLRE Lumber Jack makes 2 premium heating pellets. We have settled on the exact formula and sort the
tree species to get the exact same formula each pellet run and it has paid off for us we are known for consistently
providing the same pellet product batch to batch. Again this year we have tested these formulas for both our Lumber
Jack (Green Bag) blend pellet and our 1st Choice all hardwood pellet.
Your latest test results are as follows:
USR:W215-0806-02-1st Choice hardwood
USR:W215-0806-01-Lumber Jack Blend