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6.6.1 Mobile Home
If your stove is 'mobile home approved', It must have a supply of combustion air from outdoors.
The air intake must not draw air from the attic, from the basement, from a garage or any
enclosed space. Air must be drawn from a ventilated crawl space under the floor or directly from
outside. Install a flexible or rigid, insulated pipe (HVAC type, must comply to ULC S110 and/or
UL 181, Class 0 or Class 1) to the fresh air intake.
Where a mobile home has been converted to a standard house by mounting it on a permanent
basement foundation, the supply of outdoor air is not required.
It is prohibited to use this wood stove with a fire screen in a mobile home.
6.6.2 Conventional House
The safest and most reliable supply of combustion air for a wood stove is from the room in which
it is installed. Room air is already preheated so it will not chill the fire, and its availability is not
affected by wind pressures on the house. Contrary to commonly expressed concerns, almost
all tightly sealed new houses have enough natural leakage to provide the small amount of air
needed by the stove. The only case in which the wood stove may not have adequate access to
combustion air is if the operation of a powerful exhaust device (such as a kitchen range exhaust)
causes the pressure in the house to become negative relative to outdoors.
Figure 5: Air supply in conventional houses
If an air intake is installed through the wall of the house, its pressure can vary during windy
weather. If there are changes in wood stove performance in windy weather, and in particular if
smoke puffs from the stove, the air duct should be disconnected from the stove to determine if
it is the cause of the problem. In some windy conditions, negative pressure at the duct weather
hood outside the house wall may draw hot exhaust gases from the stove backwards through the
duct to outdoors. Check the outdoor air duct for soot deposits when the full system is cleaned
and inspected at least once each year.
Page 24
Wood Stove - Owner's Manual
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