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Jøtul F 35 130074_1 6/22
5.7 Break-In Procedure
Although your Jøtul F 35 is constructed of welded, 3/16" steel
plate, it also incorporates cast iron components. This material
requires the stove to be"broken-in" gradually so that heat
expansion does not occur too quickly and cause damage. The
following steps describe the proper break-in procedure for your
stove. Use a magnetic stove-top thermometer to monitor stove
temperature, placed directly on the cookplate.
Set the Primary Air Shutter fully open, all the way to the right.
1. Light a small fire of newspaper and kindling at the front of
the stove. Gradually add small pieces of wood, but only allow
the stove to reach a maximum surface temperature of 200°F
(93° C). Continue burning at this low rate for approximately 1
hour.
2. Allow the stove to cool to room temperature.
3. Light a second fire, allowing the stove to reach a maximum
temperature of 300°F (149°C) for 1 hour.
4. Cool the stove to room temperature.
5. Light a third fire and gradually allow the stove to reach a
surface temperature of 400°F (204°C)
6. Cool the stove to room temperature. This completes the
"break-in" procedure.
Note: If the temperature exceeds the limit during any break-in
fire, move the Air Shutter all the way to the left to shut off the
air supply completely. It is normal that the stovetop temperature
will continue to climb until the fuel burns down somewhat. Once
the fire is out and the stove has cooled to room temperature,
continue the break-in procedure. Never attempt to reduce the
temperature by removing burning logs from the fire.
Break-in Odors: It is normal for a newly-painted stove
to emit odor and smoke during the first few fires,
and these may set off smoke alarms. This condition is
caused by curing of the high temperature paint and
will diminish with each subsequent fire. It is advisable
to open windows or doors to provide plenty of fresh air
and cross-ventilation during the break-in period.
WARNING:
NEVER OVER-FIRE THE STOVE. IF ANY PART
OF THE STOVE OR CHIMNEY GLOWS, YOU ARE
OVER-FIRING. A HOUSE FIRE OR SERIOUS
DAMAGE TO THE STOVE OR CHIMNEY COULD
RESULT. IF THIS CONDITION OCCURS,
IMMEDIATELY CLOSE THE AIR CONTROL.
ATTEMPTS TO ACHIEVE HEAT OUTPUT RATES
THAT EXCEED HEATER DESIGN SPECIFICATIONS
CAN RESULT IN PERMANENT DAMAGE TO THE
HEATER.
20
5.8 Starting and Maintaining a Fire
Burn only solid wood directly on the bottom of the stove
firechamber. Do not elevate the fire in any way.
See Section 8.1 of the Appendix on page 22 for detailed
information regarding the cordwood test method fire-building
procedure from a cold start to a high fire, medium fire or cold
fire.
Top-Down Fire Building - See fig. 17.
Many people find this method to be superior to the traditional
method.
1. With the primary air control lever in the full open position
(to the right), place two short 1/4-split logs on the firebox
floor, perpendicular to the rear wall, about 6 inches apart.
2. Place kindling across the base logs.
3. Place one or two smaller split logs on top of the kindling.
4. Place newspaper between the two bottom logs under
the kindling. Light the news paper and close the door.
Continue to add kindling and small logs as necessary to
build the fire. Keep the air control fully open until the fire
is well-established.
5. Add more logs as the fuel bed become fully involved and
use the stove-top thermometer to monitor progress.
When the stove has reached a surface temperature range
of between 400° and 600°, (204°C -316°C), adjust the
primary air control lever as necessary to generate the heat
output and burn time desired.
You can also monitor stove performance through the window.
Peak combustion efficiency occurs when exhaust gas is burned
at the baffle in the top of the firebox. This is apparent as
rolling yellow-orange flames appearing at the secondary air
ports in the underside of the baffle plate and forward tube.
At this stage, little or no smoke will be visible exiting the
chimney.
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