species that truly makes a difference. A premium quality wood pellet will have
approximately 8000 BTUs per pound with up to 8% moisture and a minimum bulk density
of 40 lbs per cubic foot.
The pelletizing process removes many of the differences between hardwood and
softwood. In the pelletizing process wood chips are ground into sawdust and dried to a
consistent moisture level. The sawdust is then compressed into a pellet. The compression
equalizes the density of the wood pellets whether the fiber is softwood or hardwood. The
pellets are compressed to the same density, approximately 40 lbs per cubic foot.
A premium quality wood pellet will have less than 1% ash content. Although with all wood
pellets you will have some ash, the characteristics of the ash and amount of ash content
will vary depending on quality. With some wood pellets you may have a light fly ash that
will collect in your heat exchanger or settle in your vent, or a heavy ash that collects in
the ash pan. Some ash is high in minerals that it can melt and harden into what is known
as a clinker. It is highly suggested to regularly maintain you appliance for it to perform at
its optimal level.
A premium quality wood pellet will range between .25 – 1.5 inches in length. The shorter
the pellets the faster they feed. Increasing / decreasing your feed rate on your appliance
will help you adjust for the length of the pellet. For shorter wood pellets you may have to
decrease your feed rate. Despite the slight change in feed rate the burn characteristics
and BTUs will be the same.
Curran Renewable purchases 100% of the necessary wood chips from their sister
company Seaway Timber Harvesting. Seaway Timber Harvesting has been in the forestry
management business for decades. Because of this relationship we control the supply of
wood, the species of the trees, the balance of hardwood and softwood as well as what
parts of the trees end up in our products. This results in a higher quality wood pellet being
produced to meets the demands of our customers. To ensure our wood pellets meet the
requirements of the PFI’s super premium and premium grades we have our pellets tested
on a regular basis by a third party testing lab.
For more information about our wood pellets, please visit www.curranpellets.com