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7077-801D • September 17, 2019
17
•
Frequency: Yearly or more frequently depending on
ash build-up.
• By: Qualied Service Technician/Homeowner
Be sure the appliance is allowed to cool, has been
unplugged and the exhaust blower is o.
The products of combustion will contain small particles
of y ash. The y ash will collect in the exhaust venting
system and restrict the ow of the ue gases.
At start-up if there is incomplete combustion, or if there is
a shutdown or incorrect operation of the appliance it will
lead to some soot formation. This will collect in the exhaust
venting system.
The venting (chimney) system may need to be cleaned at
least once a year or more often depending upon the quality
of your fuel or if there are any horizontal pipe sections.
Ash will build up more quickly in the horizontal sections
and elbows.
• Frequency: Yearly
• By: Homeowner
a. Be sure the appliance is allowed to cool, has been
unplugged and the exhaust blower is o.
b. Remove all ash from the rebox and
vacuum thoroughly.
c. Paint all exposed steel, including cast-iron.
– Purchase high temperature paint from your
local retailer
.
– Must use a high-temperature paint made
specically for heating appliances.
11. Preparing Firebox for Non-Burn Season
12. Soot and Fly Ash: Formation & Need for Removal in
Exhaust Venting System.
D. High Ash Fuel Content Maintenance
• Frequency: As needed
• By: Homeowner
Poor quality pellet fuel, lack of maintenance, or if the small
dial control is set to a less than optimum setting, poor
combustion conditions that make the repot ll quickly with
ashes and clinkers.
This condition makes the appliance susceptible to
overlling the repot with pellets which may result in
smoking, sooting and possible hopper res. The gure
below shows an example where the repot overlls, pellets
back up into the feed tube and ash has accumulated in
the rebox.
An inecient and non-economical method of burning of fuel
caused by poor quality pellet fuel is shown below.
If the ash buildup exceeds the half way point in the repot
IMMEDIATE ATTENTION AND CLEANING IS REQUIRED.
Incorrect Flame Height
Tall, Lazy Flame
Orange in Color
Pellets Back-up in Feed Tube
Ash build-up in Firebox
Firepot Overfills
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