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CHIMNEYS
Your chimney is a critical component of your wood heating system. A properly designed and constructed chimney will
help to provide safe and efficient woodstove operation. Hot exhaust rising up through the chimney also pulls combus-
tion air into the stove through the air damper. If a chimney is too short, or the flue too large, the hot exhaust will cool
and slow down. This can lead to poor stove performance, smoke spillage, back puffing, and even creosote build up in
the chimney itself. An excessively tall chimney could lead to a strong draft, which may make the fire difficult to control
with the stove damper. This could result in over firing the stove and lead to damage to the cast iron components as well
as the catalytic combustor. Whether you are installing a new chimney, or adapting an existing chimney to your wood-
stove, close attention to chimney height, flue size, and location should be considered.
Chimney Flue Sizing:
The Model 205 Fireview Wood Stove has a 6” flue collar and a 6” chimney is considered
ideal. If upsizing needs to occur due to an existing chimney the following general rules
apply:
1. Interior Chimney (no walls of the chimney exposed to the outside below the roofline):
the inside cross-sectional area of your chimney should be no more than 3x the cross-
sectional area of the woodstove flue collar.
2. Exterior Chimney (if there are one or more walls exposed to the outside below the
roofline) - The flue should be no more than 2x the cross-sectional area of the flue collar.
Recommendation: Woodstock Soapstone recommends, for the Fireview wood stoves, a
maximum of 8 inch x 10 inch rectangular or 10 inch round flue tile for an inside chimney.
For an outside chimney, an 8 inch x 8 inch square or 8 inch round would be the largest rec-
ommended. The smallest size we recommend is 6 inches round. DO NOT VENT THE
FIREVIEW INTO A CHIMNEY OF LESS THAN 6 INCHES IN DIAMETER.
Note: For flues that exceed the recommended area, a stainless steel chimney liner is recom-
mended.
Height Requirements:
The chimney must extend 3 ft. above the point where it passes through the roof and must also be 2 ft. higher than any
roof surface or obstruction within 10 feet (measured horizontally) of the chimney. You should check your local building
codes for any other requirements.
The recommended minimum
chimney height is 15 feet from the flue collar of the stove to the top of the chimney. This
includes connector pipe and chimney pipe. There may be other factors to conform to code for clearances on the roof,
high wind, high altitude, etc., that may make the minimum height undesirable or a violation of
building codes. Woodstock Soapstone does not list a maximum chimney height requirement,
but it is important to know that a tall chimney (often at or over 30’), can overdraft.
Overdrafting chimneys can cause internal firebox damage. Often the draft can be controlled with
the use of a pipe damper. If you think your chimney may be overdrafting, call us at 1-800-866-4344.
CHIMNEY TYPES
There are two acceptable types of chimneys: Lined Masonry Chimneys and Class A, Pre-fabricat-
ed Metal Chimneys rated to 2100° F. Masonry chimneys must meet all applicable codes for a
safe installation.
Lined Masonry Chimneys:
Always have the chimney inspected prior to your stove installation. If your chimney is not lined
with appropriately sized clay flue tiles, or the clay tiles are old, cracked, damaged or otherwise
compromised, a stainless steel chimney liner or poured liner will be required. Depending on the
condition of your flue or clay tiles, the stainless steel liner may need to be wrapped in a high
temperature insulation blanket. A liner may also be recommended if your flue is too large for the
draft to flow properly (please refer to the section on chimney sizing). Our customer service
department can answer any questions regarding the use of a liner and/or insulating blanket.
Call 1-800-866-4344.
Existing chimneys should be checked twice a year for obstructions, creosote deposits, surface
Installing a Stainless Steel
Liner in a Masonry Chimney
Chimneys must
extend a minimum
of 3’ above roof
penetration...
... and a minimum of 2’
above the highest point
within 10’.
Terra Cotta Tile Lined
Masonry Chimney
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
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