Bixby Energy MaxFire Installation & Operating Manual page 18

HORIZONTAL THROUGH-THE-WALL-INSTALLATION
The flue exit is on back of the Room Heater, and if a horizontal through-the-
wall installation is desired:
1. Place the Room Heater according to installation instructions. See
Figure 7 for vent locations.
2. Locate vent termination per the NFPA rules. See Figure 7 (page 11).
3. Cut and frame a 10 in. X 10 in. (25cm x 25cm) square opening in the
wall (the hole in the wall board may need to be larger). See Figure
12 (page 15). The telescoping Wall Thimble is to be installed in
the interior and exterior portion of the wall. (Wall Thimble adjusts
from 4 ¼ in. to 7 in. (11cm to 18cm) to accommodate most wall
thicknesses). See Figure 16.
- The Wall Thimble flanges are to be attached to the supports with
four screws, one in each corner. Use of 1/2 inch or longer screws are
recomended.
- The Wall Thimble may be covered on the inside by the Decorative
Collar, see venting parts list for color options. It is important to slide
the collar on before adding additional venting.
4. Attach the outside vent flashing to the exterior wall with four screws.
Seal the outside section of the Horizontal Flashing and Wall Thimble
to the exterior wall with non-hardening sealant. Top tab is to be
placed under wall siding.
5. Connect the Starter Collar to back of Room Heater and attach sufficient
pipe to the Room Heater to extend 4 in. - 8 in. (10-20cm) beyond the
Flashing. See Figure 16.
6. Anchor the pipe to the Horizontal Flashing with the three
brackets using the self tapping sheet metal screws shipped
with the flashing.
6 - 12 inches (15-30 cm) from the flashing. See Figures 15 and 17.
7. Attach the Vent Cap, note orientation of embossment, to the extended
pipe. Use high temperature (500 F/260 C) silicone sealant between
all pipe joints. See Figure 17.
NOTE: Some amount of soot and discoloration may occur on the outside of
the house.
NOTE: If ice forms on the Vent Cap in cold weather, run the Room Heater on
high for a couple of hours to clear.
16
The back/base of the cap is to extend
Thimble
Starter
Collar
Decorative Collar
Figure 15
2 inch air gap around pipe.
Do not fill with insulation!
Figure 16
Flashing
Decorative
Collar
Figure 17
2020866 REV A
6"-12"
15-30cm
Vent Cap
Flashing
Wall
Wall Thimble - Outside
Clips