Chimney Installation Instructions - HearthStone WFP-75 Owner's Manual

3.2 CHIMNEY INSTALLATION INSTRUCTIONS

1. Cut and frame the holes in the ceiling, floor and roof where the chimney will pass
and install rafter protectors (see figure 43). Use a plumb bob to line up the center of
the holes. Make sure that the size of the floor and ceiling holes are in accordance
with the chimney manufacturer's instructions.
2. From below, install a firestop supplied by the chimney manufacturer in each ceiling/
floor separation through which the chimney will pass. At the attic level, install an attic
radiation shield from above (see figure 44).
3. Follow the chimney's manufacturers' instructions and place the first chimney length
on the fireplace. For all chimneys, you must use an anchor plate supplied by the
chimney manufacturer before installing the first chimney length (see figure 44).
Continue installing chimney lengths making sure to lock each length in place.
4. Every time the chimney passes through a ceiling or a wall, install the appropriate
firestop.When you reach the desired height, install the roof support. (Refer to
instructions included with the support.).
5. Then, put the roof flashing in place and seal the joint between the roof and the
flashing with roofing pitch (see figures 44). For sloping roofs, place the flashing
under the upper shingles and on top of the lower shingles. Nail the flashing to the
roof, using roofing nails.
6. Place the storm collar over the flashing, and tighten it with the bolt supplied. Finally,
seal the joint between the storm collar and the chimney, using silicone caulking.
7. Install the chimney cap.
8. When a ventilated roof flashing is installed, precautions are to be taken not to caulk
or seal the ventilating openings.
Hearthstone Quality Home Heating Products, Inc ®
Figure 43
38 WFP-75 Model 8410