FireRock 3620 Avenue C, Руководство по эксплуатации продукта

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14. Enclosures: enclose chimneys where
they pass through occupied spaces, including
closets. Always maintain at least a 2-inch
clearance between the chimney and any
combustible materials. Interior enclosures
may be constructed with standard framing
and sheathed with sheetrock or plywood.
Use a Wall Strap or Stabilizer at least every 8
feet to maintain a minimum of 2 inches of air
space between the chimney and combustible
materials.
OFFSET ELBOW INSTALLATION
A 30° elbow (measured from the vertical) is
the largest that can be used in an offset. A
30° elbow may not be combined with another
elbow to make a steeper offset (e.g. two 30°
elbows are not allowed to be put together to
form a 60° elbow). Avoid elbows if possible. A
totally vertical chimney is more efficient. When
elbows are necessary to avoid obstructions
such as rafters, ridgepoles, or joists, you are
only allowed to use 1 pair of elbows in any one
chimney system
*
. horizontal runs of chimney
violate building code and are not allowed.
1. Attach Elbows: Attach elbow to Chimney
Section or other elbow by mating the male
and female ends with each other and using
the (4) sheet metal screws provided. Attach
one elbow to the Chimney Section below, and
align it for the offset. Determine the required
offset length and attach an appropriate length
(or lengths) of Chimney Section(s) above the
elbow. Attach the second elbow above the
Chimney Section to complete the offset (Fig.
17).
2. Secure Offset: Use an elbow Strap to
secure the offset. Secure the elbow Strap’s
band to chimney around the upper portion of
the top elbow, then tighten the nut and bolt
until the clamp is firm. Wrap the Elbow Strap
end over an adjacent joist or rafter and secure
it with at least two 8-penny nails or #8, 1-1/2"
screws. Add additional elbow Straps for each
section of chimney in the offset (Fig. 18).
every chimney section in the offset must be
supported. Do not add more Chimney Sections
until the elbows and the offset are supported.
Be sure that the chimney remains vertical.
CHIMNEY MAINTENANCE
1. Creosote and Soot: When wood is burned
slowly, it produces tar and other organic
vapors, which combine with expelled moisture
to produce creosote. The creosote vapors
condense in the relatively cool chimney flue
of a slow-burning fire. As a result, creosote
residue accumulates on the flue lining. When
ignited, this creosote makes an extremely hot
fire.
2. Access: Chimneys must be installed so that
access is provided for inspection and cleaning.
3. When to Clean: The chimney should be
Figure 17
30° OR 15°
ELBOW STRAP
ELBOW
Figure 18
ELBOW STRAP
1 PER
SECTION
*See supplement on page 104 that addresses changes to number of elbows permitted in single chimney system.
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