Heat & Glo MISSION-BAY Owner's Manual page 18

Figure 5.18
Step 6.
Complete the cathedral ceiling installation by following the
same procedures outlined in steps 7 through 9 for vertical
installations, pages 16-17.
Step 7.
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 roofline.
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.
CATHEDRAL
CEILING
SUPPORT
BOX
Figure 5.19
Page 18
TRIM COLLAR
SCREWS
Heat & Glo · Mission Bay · 250-7512F
3. Class A Metal Chimney
EXISTING ME TAL
CHIMNE Y SYSTE M
DIRECT VENT PIPE
Figure 5.20
CAUTION
Ensure that existing chimney is functionally sound and clean.
• Have inspection done by qualified chimney sweep or
professional installer BEFORE converting to direct vent
appliance.
Step 1.
Remove existing chimney cap.
Step 2.
Measure the distance from the top of the chimney to the
bottom of the ceiling support box, add 3 in. (76mm) to this
measurement, and cut a section of 4 in. (101mm) flex pipe
to that length (the flex should be fully extended).
Step 3.
Connect the end of the flex pipe section to the underside
of the top adapter, using four sheet metal screws (Figure
5.21).
Flex
Pipe
Figure 5.21
TERMIN ATION
CAP PART #SLK-991D A
TOP ADAPTE R
FLASHING
4 in. (102mm) FLEX PIPE
RETRO CONNEC TOR
Top Adapter
Sheet Metal Screws
July 12, 2006