Offset Elbow Installation - ECOVENT USA EV-SHT Installation Instructions Manual

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Flashing. Always insure the chimney remains vertical (use level), and that at
least a 2-inch clearance to combustible materials is maintained all around.
Install the upper edge of the Flashing under the roofing. Nail to the roof along
the upper edge and down each side with 1-inch roofing nails. Do not nail the
lower edge of the Flashing (Fig 11). Be sure to follow local building practices,
as needed. Seal all nail heads with a non-hardening waterproof sealant. On
flat or tarred and graveled roofs, nail and seal the Flat Roof Flashing to the roof
on all sides with roofing compound. Do not put screws through the Flashing
into the Chimney Pipe.
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10. Finish Top: Apply a high-temperature (500
F), non-hardening waterproof
sealant around the chimney at the point where the Storm Collar will meet the
chimney just above the Flashing 1/2 INCH. (Figures 11 and 12). Slide the
Storm Collar down over the chimney to the tab of the Flashing. Tighten and
seal the Storm Collar against the sealant. After installing sufficient Chimney
Sections to meet the height requirement (Fig 1), attach the Chimney Cap onto
the top of the chimney by holding the collar of the cap and twist locking it
clockwise onto the chimney. Do not hold upper portion of the cap and twist, as
this may damage the cap. The Chimney Cap can be removed for chimney
cleaning as described in the Chimney Maintenance section of the instructions.
Use a Roof Brace if the chimney extends more than 5 feet above the roof
(Figures 14 & 15 in the Roof Brace).
Fig 12
Fig 11
11. 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 Wall Brackets as needed to maintain a minimum of 2 inches of air space
between the chimney and combustible materials.

OFFSET ELBOW INSTALLATION

Elbows are manufactured in 15° and 30° angles measured from the vertical. A
30° Elbow is the largest that can be used in an offset. A 30° Elbow may not be
combined with a 15° Elbow to make a 45° offset. Avoid Elbows if possible,
since a totally vertical chimney is more efficient. When Elbows are necessary
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