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7. The blower(s) will being to distribute warm air when
the snap-disc reached set-point.
STARTING A WOOD FIRE
Using Forced Air Draft (optional)
Shut off FAD when fuel door is open
1. Start a fi re inside the fi rebox as described above.
2. The forced air draft cycles on demand from the wall
thermostat. Setting the U.S. Stove thermostat four de-
grees higher than your existing thermostat is recom-
mended. In operation, the power draft blower will run
until the U.S. Stove thermostat temperature setting is
reached. The draft regulator on the forced air draft is
preset at the factory and should require no adjustment.
CAUTION: To avoid excessive temperatures, do not
operate with fuel door or ash pan open.
STARTING A COAL FIRE
If you burn coal, a forced air draft is required
Shut off FAD when fuel door is open
•
Open smoke pipe damper all the way. Open all draft
controls on your furnace. Pull the slide baffl e forward.
•
Place about 10-15 lb. of coal in on the shaker grates. It
should come up to about half of the fi rst fi rebrick level.
•
Place crumpled paper over the coal and crisscross a
couple handfuls of dry kindling wood 3/4" in thickness
on top of paper.
•
Ignite the paper and close loading door. Wait about
30 minutes until coal fi re is established before adding
more coal. NOTE: NEVER load coal over the level of
fi rebrick.
•
Close by-pass damper and set all draft controls to your
own needs. It may take 3 to 4 coal fi res to determine
how your local coal and the Clayton Furnace reacts
together. Adjusts drafts accordingly.
•
Loading with a good bed of coals in the morning -
Open by-pass damper.
1. In normal shaking, only rock the grates a small amount
to sift ash through. Do not agitate the fi re bed too of-
ten. This practice will waste coal. If glowing coal is vis-
ible in the ash pan, you have shaken to much.
2. Remove all ashes every day from ash pit.
CAUTION: Ashes should be placed in a metal container
with a tight fi tting lid. The closed container of ashes should
be placed on a non-combustible fl oor or on the ground
well away from all combustible materials pending fi nal
disposal. If the ashes are disposed of by burial in soil or
otherwise locally dispersed, they should be retained in the
closed container until all coals have thoroughly cooled.
3. With your poker, push hot burning embers to the rear
of the unit and add green coal in front. NEVER load
over height of fi rebrick. This can result in damage to
your furnace and home.
4. Close by-pass damper.
•
Too much draft air will cause clinkering of coal and will
waste heat up the chimney. Shut draft down to as low
a point as you can and still heat your home.
1. NOTE: Never stand in front of loading door when
opening it. Stand to the side.
2. NEVER completely cover the live fi re with fresh coal.
Always leave a generous area of glowing coal at the
top of the fi re and at the rear.
3. Always keep the ash pit clean.
•
If the fi re goes out or does not hold overnight, look for:
1. Poor draft.
2. Incorrect damper settings.
3. Improper fi ring methods for coal being used.
4. More combustion air needed.
5. Coal not sized to the furnace. We recommend 1" to 3"
diameter pieces of coal.
6. Ashes, if allowed to accumulate in the ash pit, will
not allow the passage of required air for combustion.
Keep ash pit clean.
7. This furnace is not to be used with an automatic stoker
unless so certifi ed.
•
There are ONLY two types of coal allowed for use in
this furnace: Bituminous Coal (soft coal) and Anthra-
cite Coal (hard coal). NEVER USE Cannel (or Chan-
nel) coal or Brown (Lignite) Coal.
•
See our Bulletin RC454 at the rear of this manual for
the best information available on burning coal.
OPERATING NOTES
•
Do not over draft the furnace! It is designed to operate
at .06 inches of water column and must be set with
a draft gauge to maintain a steady draft. (Barometric
Damper recommended.)
•
Do not allow ashes to build up higher than 2" above
grates.
•
Never allow the ashes in the ash pan touch the grate
section. REMOVE ASHES FREQUENTLY!
•
Be extremely careful when removing furnace ash pan;
it can get very hot.
•
With new steel, there is a small amount of oil or dirt on
the metal. You may smell an odor. This is normal dur-
ing the fi rst operation. You may want to assemble the
furnace out of doors and build a small fi re in it to "burn
off" this dirt and oil before installing the unit.
•
The furnace is designed to burn air dried wood and
coal at a predetermined fi ring rate. Over fi ring could
result in damage to the heat exchanger and cause
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