Hearthstone Quality Home Heating Products, Inc
® Green Mountain 40 (Model 8640)
24
M
AINTENANCE
C
ATALYTIC
C
OMBUSTOR
I
NSPECTION AND
R
EPLACEMENT
P
ROCEDURES
•
WARNING: THIS WOOD HEATER CONTAINS A
CATALYTIC COMBUSTOR, WHICH NEEDS
PERIODIC INSPECTION AND REPLACEMENT FOR
PROPER OPERATION. IT IS AGAINST FEDERAL
REGULATIONS TO OPERATE THIS WOOD
HEATER IN A MANNER INCONSISTENT WITH
OPERATING INSTRUCTIONS IN THIS MANUAL, OR
IF THE CATALYTIC ELEMENT IS DEACTIVATED
OR REMOVED
It is important to periodically monitor the operation of
the catalytic combustor to ensure that it is
functioning properly and to determine when it needs
to be replaced. A non-functioning combustor will
result in a loss of heating efficiency, and an increase
in creosote and emissions. Following is a list of
items that should be checked on a periodic basis
-Combustors should be visually inspected at least
three times during the heating season to determine if
physical degradation has occurred. Actual removal
of the combustor is not recommended unless more
detailed inspection is warranted because of
decreased performance. If any of these conditions
exists, refer to Catalyst Troubleshooting section of
this owner’s manual.
-This catalytic (or hybrid) heater is equipped with a
thermometer to monitor catalyst operation. Properly
functioning combustors typically maintain
temperatures in excess of 500 °F, and often reach
temperatures in excess of 1,000 °F. If catalyst
temperatures are not in excess of 500 °F, refer to
the
Catalyst Troubleshooting section of this owner’s
manual.
-You can get an indication of whether the catalysts
are working by comparing the amount of smoke
leaving the chimney when the smoke is going
through the combustor and catalysts light-off has
been achieved, to the amount of smoke leaving the
chimney when the smoke is not routed through the
combustor (bypass mode).
1.
Light stove in accordance with operator’s
instructions
2.
With smoke routed through the catalysts, go
outside and observe the emissions leaving the
chimney.
3.
Engage the bypass mechanism and again
observe the emissions leaving the chimney.
Significantly more smoke will be seen when the
exhaust is not routed through the combustor
(bypass mode)
I
NSPECTING THE CATALYSTS AND
REMOVING
/
REPLACING THE BAFFLE
1.
Allow the stove and ashes to fully cool.
2.
Remove the metal baffle protector by sliding it
to the left or right, and then rotating it towards
you.
3.
Lift up on the right side baffle, and gently pull
the left side baffle down and out of the stove
CAUTION - Do not force the baffle pieces. Gently
adjust the baffle orientation until each side can
be removed freely from the stove.
Figure 17 - Removing/Replacing the Baffle for
Inspection
4. Use a small vacuum nozzle or soft bristled
brush to remove any accumulated ash or
soot on the face of the catalyst.
5. Inspect the catalyst for any unusual warping,
corrosion, or plugged openings.
Figure 16 - Removing/Replacing the Baffle for Inspection
