Drolet Fox Small Owner's Manual page 23

6.3.1 Factory-Built Metal Chimneys in Mobile Homes
For use in a mobile home (if allowed), this stove is
to be connected to a 6" double wall factory built
chimney pipe conforming to ULC-S629 or UL 103HT
standards for 650°C Factory-built chimney. The total
length of the flue system should be at least 12 feet
including elbows, from the top of the stove.
To maintain an effective vapour barrier, insulation
and waterproof at the chimney and outside flue pipe,
a roof flashing must be installed and sealed with
silicone adhesive.
6.3.2 Masonry Chimneys
The stove may also be connected to a
masonry chimney, provided the chimney
complies with the construction rules found
in the building code enforced locally. The
chimney must have either a clay liner or a
suitably listed stainless steel liner. If the
masonry chimney has a square or rectangular
liner that is larger in cross-sectional area
than a round 6" flue, it should be relined with
a suitably listed 6" stainless steel liner. Do
not downsize the flue to less than 6" unless
the venting system is straight and exceeds
25 feet in height. When passing through a
combustible wall, the use of an insulated
listed thimble is required.
Wood Stove - Owener's Manual Page 23