Straight-Up Chimney Installation

SR/SC Series "A" Woodburning Fireplace

To mark the centerline of the ﬂue, put the ﬁreplace in ﬁnal position and measure out from the wall: 9¹⁄₄" (235mm). Mark a spot on the ceiling directly above the ﬁreplace. Draw a line parallel to the back wall through this mark. (Fig. 11)

Using a plumb bob positioned directly over center point of ﬁreplace ﬂue collar, mark the ceiling to establish the

chimney center point. (Fig. 11)

Offset Installation

In order to clear an obstruction, it may be necessary to offset chimney from vertical. This is accomplished by using CFM Corporation elbows. Use the 30° Offset Elbow table on Page 6 to determine proper offset and parts required.

Chimney Centerline

Actual Centerpoint

9��" (235mm)

Plumb Line

Plumb Bob

Imaginary Cen- terpoint

FP556

Fig. 11 Locate centerline of chimney with plumb line.

Each offset requires two (2) elbows. The second elbow is equipped with support straps. It is very important to install the second elbow in each offset as close to the ceiling or support as possible so that the elbow straps can be secured to framing members to help support the weight of the chimney.

Determine offset distance of your chimney arrangement from centerline of ﬁreplace to centerline of chimney where it is to pass through ceiling.

Locate center point of the chimney on ceiling as though a straight up chimney arrangement is to be used. Mea- sure your offset dimension from straight up chimney center point on ceiling.

Ceiling Chimney Hole/

Possible Obstructions

The size of the hole in ceiling will vary with the angle at which the chimney passes through ceiling.

Drive a nail up through ceiling at marked chimney cen- ter point. Go to ﬂoor above and see where hole will be cut. Check to see where existing ceiling joists and other possible obstructions are located...i.e. wiring, plumbing etc... If necessary, reposition chimney and/or ﬁreplace to avoid obstructions.

Cutting the Hole

Cover ﬁreplace collar opening and cut proper sized chimney hole in chimney. The SK8 pipe allows you to run pipe through a typical 16” on center joist without cutting joists.