Wood bricks are an excellent alternative, or supplement, to firewood. Much like how wood pellets are made, wood bricks are manufactured by densely compacting bark-free wood fibers into a uniform shape. But first, the wood fiber is kiln-dried to hold less than 10% moisture. Because of this extremely low moisture rate and absence of bark and insects, the buildup of creosote is significantly lower than standard wood burning.
Wood bricks are most commonly packaged in bundles of 15-20 bricks. Bundles are sold individually and also in bulk, stacked neatly on on a shrink-wrapped wood pallet.
Comparing Firewood and Wood Bricks
A full cord of firewood is about 8 feet long, 4 feet deep and 4 feet high – which takes up about 128 cubic feet of space and can weigh over 3,700 pounds. A typical pallet of wood bricks is approximately 4 feet long, 3 feet deep and 4 feet high – which takes up about 48 cubic feet of space and weighs about 2000 pounds.
On average, dry firewood produces about 6,500 BTUs/lb of heat. Although wood bricks are typically about 6 x 2.5 x 3.5 inches in size – they pack a serious punch, producing up to 8,000 BTUs/lb of heat. In comparing the two heating sources by equal weight, 3700 pounds of wood bricks produces 29.6 million total BTUs, and 3700 pounds of firewood produces 23.4 million total BTUs.
Therefore, 2,000 pounds of dry firewood (1 ton) is equal in heat output to approximately 1,625 pounds of wood bricks (13/16 of 1 ton).
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*Product availability varies by region.