OUTSIDE COMBUSTION AIR
It is recommended that this appliance be installed with an outside
air intake. This type of installation is also required for Canadian
installations, mobile homes and in air tight houses with negative
pressure problems. You can purchase this option through your
heater dealer or at your local hardware supply store. Installation
instructions should be supplied with the air intake kit.
Outside combustion air may be required if:
1. Your appliance does not draw steadily, smoke rollout occurs,
fuel burns poorly, or back-drafts occur whether or not there is
combustion present.
2. Existing fuel-fired equipment in the house, such as fireplaces
or other heating appliances, smell, do not operate properly,
suffer smoke roll-out when opened, or back-drafts occur
whether or not there is combustion present.
3. Opening a window slightly on a calm (windless) day alleviates
any of the above symptoms.
4. The house is equipped with a well-sealed vapor barrier and
tight fitting windows and/or has any powered devices that
exhaust house air.
5. There is excessive condensation on windows in the winter.
6. A ventilation system is installed in the house.
If using outside combustion air, you can purchase a standard
4FAK from your dealer and install it on the rear of the appliance.
The inlet tubing used must be rigid and have a minimum material
thickness of 0.016 inches. Follow the manufacturer's installation
instructions for attaching the 4FAK to the home.
HEATING
Controlled combustion is the most efficient technique for wood pellet heating because it enables you to select
the type of combustion you want for each given situation. The wood pellets will burn slowly if the heater air intake
control is adjusted to reduce the oxygen supply in the combustion chamber to a minimum. On the other hand,
wood pellets will burn quickly if the air control is adjusted to admit a larger quantity of oxygen in the combustion
chamber. The air intake control on your heater is very simple. If you raise the air control lever up as far as if will go, it
is fully open. If you push it down until if stops, the combustion air is reduced to the minimum setting. Real operating
conditions may give very different results than those obtained during testing according to the overall quality of
pellets used, the average size of the pellets, the length of the chimney, altitude and outside air temperature.
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Outside Air Connection
4FAK Installation