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Five
essentials to getting the most out of your
woodpile,
continued... By
Ike Johnson , reprinted from Back
Home Magazine.
Burn
Efficiently
Another great energy saving potential lies
in upgrading your stove. While the initial
outlay is high, you can be certain that the
payback from increased efficiency will be
seen within a reasonable time. As of 1994
the EPA has required that all woodstoves sold
in this country meet emission control standards.
The way most stove manufacturers have complied
is through the use of catalytic converters,
similar to those in a car. But unlike those
in automobiles, catalytic converters in stoves
make them run more efficiently, as well as
discharge fewer pollutants into the
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atmosphere. A new woodstove with a catalytic converter
is rated at nearly 76 percent efficiency. Other stove
makers rely on "high tech"designs that are specially
insulated and engineered to use airflow and secondary
combustion to bring efficiency up and particulate
emissions down. These burners typically are compact
and not quite the performers that catalytic stoves
are, but they're not as expensive, either. Compare
the efficiency of the new models with your current
stove and decide whether it's worth the expense of
upgrading. If you're now using a home built variation
of the barrel stove, for example, as much as 75 percent
of your fuel could be going up and out of your chimney
as dirt and heat. Another robber of fireplace efficiency
is a clogging accumulation of ash. On the next warm
day, let the fire burn out so you can remove those
built up ashes. Also keep in mind that a small vigorous
fire is more efficient than a large smoldering one,
both in terms of heat output and creosote production.
Keep the Heat In
Naturally, a well insulated home requires less fuel
than a poorly insulated one. There is much you can
do to control this form of heat loss even after
the home is built. You could hire an energy auditor
with gadgets galore to come tell you where you are
losing heat, or you can try the barefoot test: the
next time a cold wind is blowing, take a stroll
barefoot around the perimeter of your interior.
Your tootsies can provide a valuable input on where
heat is escaping.The remedies are beyond the scope
of this particular article, but a local hardware
store can counsel you on what can be done at what
price. It may be as simple as stuffing loose insulation
in your attic or as involved as replacing your windows
with insulated casements. In any event, try to convert
the anticipated cost into cords of wood over the
lifespan of the improvement. If you're trying to
talk yourself into a given project, factor in convenience
and comfort. If not, leave it on a dollars and cents
basis.
Burn
the Best
Another way to get the most out of your wood is
to be a snob; all trees are not created equal. Go
for as good a grade of fuel as possible. Assuming
90 cubic feet of solid wood per cord (and remembering
that an actual 128 cubic foot cord has lots of air
space in it), dry hickory has 24.8 million Btu of
energy compared to a tepid 13 .5 million for dry
fir. A neighbor once observed that burning poplar
in the "old days" usually resulted in pregnancy,
referring, of course, to another popular method
of keeping warm on a winter's night. Nonetheless,
his point about poplar being a poor choice heatwise
was valid: given the limited amount of time I had
to spend on gathering and processing wood, and the
limited amount of storage space, the "free" poplar
I was splitting was no bargain. Ask various wood
suppliers what kinds of wood they offer (see the
heat comparison chart) and in what proportion. Insist
on a standard unit of measurement. Face cords, ricks,
racks, and tons are all in use, but for comparison
use true 4' x 4' x 8' ( 128 cubic foot) cords. Determine
what is meant by "seasoned." The dealer may mean
a single season (i.e., one winter; not much drying
time there) or a full year, which is a decent period
for split wood to cure to its full potential. Also,
consider the characteristics of the wood in regard
to cutting and splitting. The same neighbor with
his poplar observation claimed that a cord of elm
would last half a lifetime. By then, he maintained,
you'd have given up on ever getting it split.
These recommendations are not speculative. In the
nine winters we have spent in our home, we have
pared down our wood usage from a whopping 6.5 cords
to precisely 4. The mess stays down in the basement,
and the house is much more comfortable than it was
in the old days. The benefits are tangible and real
. . . in dollars, comfort, trips to the chiropractor,
and wear and tear on the saw. And best of all, our
savings no longer leave the house via the chimney.
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