Installing The Chimney Connector - Enerzone Harmony 2.3 Installation And Operation Manual

Contrary to commonly expressed concerns, almost all tightly sealed new houses have enough
natural leakage to provide a 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 25: 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.

8.6 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.
Double wall chimney connectors are tested and certified. The rules for double wall pipe are
found in the manufacturer's installation instructions. These rules will be very different than those
for single wall.
Page 40 Installation and Operation Manual - Harmony 2.3