Yukon Advanced Optics Oil Furnace Operating Instructions, Best Wood To Burn, BTU’s, Equivalent

Operating Instructions

BEST WOOD TO BURN

All solid fuel, whether it is coal, pine, oak or any grain has about 12,000 BTU's per pound if its moisture content is zero. Wood that has been cut, split and air dried for 2 years has about 8,000 usable BTU's per pound. Hardwood such as oak or hard maple has nearly twice the BTU's per cord as pine or aspen because it is nearly twice as heavy.

Freshly cut wood has about 50% moisture content. Wood that has been cut and split for 2 years has about 20%. Wood must reach at least 435º to ignite. High moisture content wood does not allow the gases in wood to get hot enough to provide complete combustion, thereby creating smoke and creosote, which is usable energy, but wasted because of incomplete combustion.

Yukon-Eagle furnaces are designed to wring the most energy possible from each log. Your furnace is designed to allow the primary air under the grate to create the initial burning. As the wood burns, gases, which contain 40% of the energy in the wood, escape to the top of the flame. The patented secondary air system (the round tubes between the firebrick) draws room air into the tubes and provides oxygen to the firebox to burn these gases. The result is you will use up to 75% less wood than stoves, furnaces or outdoor boilers without these features.

				BTU’s		Equivalent
		Pound		per Cord		Value #2
		Weight		Air Dried		Fuel Oil
Type		per Cord		Wood		Gallons
White Pine	1800		17,000,000		120
Aspen		1900		17,500,000		125
Spruce		2100		18,000,000		130
Ash		2900		22,500,000		160
Tamarack		2500		24,000,000		170
Soft Maple		2500		24,000,000		170
Yellow Birch		3000		26,000,000		185
Red Oak		3250		27,000,000		195
Hard Maple		3000		29,000,000		200
Hickory		3600		30,500,000		215

FIG. 31

FIG. 32

Questions? Visit www.yukon-eagle.com or call 1-800-358-0060

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