Chimney Placement; Chimney Enclosure Requirements - ECOVENT USA EV-SHT Installation Instructions Manual

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The Tee Support can hold a maximum of 50 feet of Rainbow Chimney. The
required parts and general configuration are as shown in Figures 21 and 22.

CHIMNEY PLACEMENT

When deciding the location of your chimney, try to avoid modifications to roof
beams and other structural components of the building.

CHIMNEY ENCLOSURE REQUIREMENTS

Through Rooms: Interior chimneys shall be enclosed where they extend
through closets, storage areas, occupied spaces, or any place where the
surface of the chimney could be contacted by persons or combustible
materials. The space between the outer wall of the chimney and the enclosure
shall be at least 2 inches (Fig 2).
Multi-Story: Consult local building codes
for requirements in your area. In the
U.S.,
the
National
Association
Standard
"Factory-built chimneys that pass through
floors of buildings requiring the protection
of vertical openings shall be enclosed with
approved walls having a fire resistance
rating of not less than one hour when such
chimneys are located in a building less
than 4 stories in height, and not less than 2
hours when such chimneys are located in a
building more than 4 stories in height." In
Canada, except in single-family and two
family dwellings, chimneys which extend
through another story must have an
enclosure with a fire resistance rating
equal to or greater than that of the floor or
roof assembly through which they pass.
Fig.1
Fire
Protection
#211
states:
2
Fig.2

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