Masonry Chimneys; Minimum Chimney Height; The Relationship Between The Chimney And The House - Enerzone EB00002 Installation And Operation Manual

8.2.3 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.

8.3 Minimum Chimney Height

The top of the chimney should be tall
enough to be above the air
turbulence caused when wind blows
against the house and its roof. The
chimney must extend at least 1 m (3
ft.) above the highest point of contact
with the roof, and at least 60 cm (2
ft.) higher than any roof line or
obstacle within a horizontal distance
of 3 m (10 ft.).

8.4 The Relationship Between the Chimney and the House

Because the venting system is the engine that drives the wood heating system, it must have the
right characteristics. The signs of bad system design are cold backdrafting when there is no fire in
the stove, slow kindling of new fires, and smoke roll-out when the door is opened for loading. There
are two guidelines to follow. First, the chimney should be installed up through the heated space of
the house, not out and up an outside wall. Second, the chimney should penetrate the top of the
building at or near the highest heated space.
Solution 1.8 Installation and Operation Manual
35