HearthStone Craftsbury 8392 Manual page 26

must be maintained for about 20 minutes. This
ensures that the stove, catalysts, and fuel are all
stabilized and at proper operating temperatures.
Even though it is possible to have gas temperatures
reach 500 °F (260⁰C) within 2 to 3 minutes after a fire
is started, if the fire is allowed to die down
immediately, it may go out or the combustor may stop
working. Once the stove and catalytic combustor heat
up, heat generated from burning smoke keeps the
catalysts warm and active as long as fuel remains in
the stove. You stove will burn the cleanest and most
efficiently when the catalysts are in the active range.
There should be little to no visible smoke from your
chimney when the catalysts are in the active zone and
fully functional.
B R
URN ATE
This wood heater has a manufacturer-set
minimum low burn rate that must not be altered.
It is against federal regulations to alter this
setting or otherwise operate this wood heater in
a manner inconsistent with operating
instructions in this manual
LOW BURN: Move the air control lever all the way
inward toward the stove. (See figure 13). This closes
the air shutter to its minimum opening. A low burn rate
over extended periods is not advisable as it can
promote the accumulation of creosote. Inspect the
venting system frequently if using low burn rates
consistently.
MEDIUM LOW BURN: With the primary air control in
the low position, pull the air control forward (a little
less than 1/4"). A medium-low burn rate is the typical
setting and is preferable if the stove is unattended. At
this burn rate, a little goes a long way.
MEDIUM HIGH BURN: With the primary air control in
the low position, pull the air control forward (a little
less than 3/8")
HIGH BURN: Completely open the primary air control
by moving it all the way outward toward the operator.
Fully load the firebox with wood on a bed of hot coals
or on an actively flaming fire. To minimize creosote
accumulation, run the stove on high once or twice
daily for 35 to 45 minutes to fully heat the stovepipe
and chimney.
CAUTION: Do not burn fuel other than cordwood in
your stove.
O -F C
VER IRE AUTION
Over-firing means the stove is
temperatures above normal temperatures reached
Hearthstone Quality Home Heating Products, Inc ®
during High Burns outlined in the BURN RATE
section. Carefully avoid over-firing, as it will damage
the stove. Symptoms of chronic over-firing can
include warped components, short burn times, a
roaring sound in the stove or stovepipe, and
discoloration of the stovepipe. A properly installed
stove using fuel and following operating procedures
as outlined in this manual should not over-fire.
Excessive draft, inappropriate fuel, and operator error
can cause over-firing. Correct an over-fire situation as
follows:
•
•
•
If you suspect your stove is over-firing, discontinue
use and contact your dealer immediately. Damage
caused by over-firing is not covered by your
warranty. Results of over-firing can include warped
or burned out internal parts, cracked refractory
panels, discolored or warped external parts, and
damaged finish.
•
•
operating at
26
EXCESSIVE DRAFT: Contact your local dealer
to have a draft reading taken. Any draft in excess
of 0.1 WC requires a damper in the stovepipe.
Some installations may require more than one
damper.
INAPPROPRIATE FUEL: Do not burn coal; kiln
dried lumber, wax logs, compressed wood, highly
volatile fuels or combustibles, or anything other
than natural cordwood.
OPERATOR ERROR: Ensure all the gaskets are
in good condition. Replace worn out or
compressed gaskets. Only burn the stove with
the firing and ash doors in the closed position.
ANY SIGNS OF OVER-FIRING WILL VOID YOUR
WARRANTY!
THE FRONT DOOR MUST REMAIN CLOSED WHEN
IN OPERATION
Craftsbury (Model 8392)