Yukon Eagle LW-000 Series, Owner'S Manual

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1
hand firing Wood
Set the small thermostat above room temperature. Set the larger
thermostat below room temperature. The damper to the firebox
should now be open.
Place paper and kindling in the firebox as you would in a fireplace
or campfire. Add logs to top of fire once kindling is burning. Reset
small thermostat to desired room temperature.
Never leave ash drawer open, either to start fire or to provide more
heat. The furnace is designed to provide adequate heat with the
ash drawer closed.
Warning
Never operate furnace with ash drawer open. It could cause
the fire to burn at extreme temperatures, causing metal fatigue
and firebox failure.
caution
restricted use during
electric PoWer or
furnace fan failure
Furnace may be converted to a gravity system. Directions
must be followed carefully to avoid an over-fire situation.
Remove access door to blower compartment and remove
air filter. Then replace access door. Keep ash drawer tightly
closed. Do not tamper with wood primary air control. Load
wood to half the recommended normal height, approximately
4 inches above grate .
Do not overload, as no furnace fan is available to rapidly carry
away the heat. Load small amounts of wood frequently until
power is restored.
Open all air registers and remove all obstructions near them.
Keep children away from air registers or burns could result.
Primary air damper and burner will operate automatically
when electric power is restored .
iMPortant
Keep ash drawer empty. Primary air to the wood chamber
travels under the grate. Also, if ashes are permitted to build up
above the grates, the grates will warp and eventually burn out.
danger
Never burn materials other than coal or wood logs, preferably
split and dried. A chimney fire or heat exchanger failure could
result. This includes large amounts of corrugated boxes, wood
shavings, paper scraps, dried Christmas trees, coke, garbage,
tires or other burnable products.
caution
overloading With Wood
Do not overload your furnace with wood. Failure or damage to
the firebox could result. Never allow the hot coals to build up
above the lower firebricks.
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 it's 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 435Q to ignite. High moisture content wood does not allow
the gases in wood to get hot enough to provide complete combus-
tion, 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 pos-
sible 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 #
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 26,000,000 180
Red Oak 3250 27,000,000 195
Hard Maple 3000 29,000,000 200
Hickory 3600 30,500 ,000 215
caution
REMOVE AIR CONDITIONING COIL FROM WARM AIR
PLENUM IF USING FURNACE DURING FAN FAILURE OR
ELECTRIC POWER FAILURE.
If for any reason there should be an electric power failure,
either from high limit cutoff or electrical power outage, the
damper will automatically close, preventing over-fire with no
blower, thus preventing heat exchanger damage.