Installing The Chimney Connector - Osburn Beyond Fire 1700 Installation And Operation Manual

9.5.2 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 29: 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.
9.6

Installing the Chimney Connector

The chimney connector is the single or double wall pipe installed between the stove flue collar
and the chimney breech. Single wall pipe components are available from most hardware and
building supply stores. These components are not usually tested to a particular standard and
certified as compliant. Therefore, a list of rules found in solid fuel installation codes apply to the
installation of a single wall pipe.
Installation and Operation Manual - 1700 Page 43