Hearth and Home Technologies TIARA II-B, TIARAI-CES, TIARAI-BR-B, TIARA I-B Cathedral Ceiling, Step

2. Cathedral Ceiling

Step 1.

Follow installation Steps 1 and 2 under vertical installation section, page 16.

Step 2.

Remove shingles or other roof covering as necessary to cut the rectangular hole for the support box. Cut the hole 1/8 in. (3mm) larger than the support box outline.

Step 3.

Lower the support box through the hole in the roof until the bottom of the support box protrudes at least 2 in. (51mm) below the ceiling (Figure 5.17). Align the support box both vertically and horizontally with a level. Temporarily tack the support box in place through the inside walls and into the roof sheathing.

Figure 5.18

Level

Cathedral Ceiling

Support Box

2 in. (51mm) Min. below finished ceiling

Cut hole 1/8 in. (3mm) greater in size than pattern of support box as it is projected onto roof line

Figure 5.17

Step 4.

Using tin snips, cut the support box from the top corners down to the roof line, and fold the resulting flaps over the roof sheathing (Figure 5.18). Before nailing it to the roof, run a bead of non-hardening mastic around the top edges of the support box to make a seal between it and the roof. Clean out any combustible material from inside the support box.

Step 5.

Assemble the desired lengths of pipe and elbows necessary to reach from the appliance up through the round support box. Ensure that all pipe and elbow connections are in their fully twist-locked position. Assemble as instructed.

Step 6.

Place the support clamp (provided with the support box) inside the support box (at the bottom), and secure to the pipe section. The clamp allows the support box to support the weight of the pipe sections. Continue to add pipe sections until you are above the roof line.

Step 7.

Complete the cathedral ceiling installation by following the same procedures outlined in steps 7 through 9 for vertical installations, pages 17-18.

Step 8.

Install the black trim collar around the outside of the cathedral ceiling support box (Figure 5.19). The two pieces of the trim collar slide over one another to allow for easy adjustment around the support box. Using the six screws provided, secure the four corners and the overlapping sections of the trim collar to the ceiling. You may want to predrill the holes for the overlapped sections for ease of installation.

Trim Collar

Cathedral

Ceiling

Support Screws

Box

Figure 5.19

August 1, 2008 Heat & Glo · Tiara I B & Tiara II B · 7010-149M Page 19