INSTALLING
FURNACE
(Continued)
CREATING WALL OPENING AND MOUNTING FURNACE
Remove furnace front cover. Remove the two screws at the lower edges of front
cover. Lift front cover away.
Installing in Normal Frame Wall
The 25,000 Btu/Hr model is designed to fit between two wall studs set at 16 inch
on center. The 40,000 Btu/Hr model will not fit between wall studs. Follow the
steps below to install.
1. Turn off electrical circuits that pass through mounting wall. Make sure there are
no pipes or electrical wires in area you intend to cut.
2. Use stud locator or small finishing nail to find wall studs. When you locate
studs, drive a small finishing nail into each stud. This provides a visual refer-
ence for stud locations.
3. 25,000 Btu/Hr Model: Cut an opening in wall between the two studs. Make
opening 14 t/4" wide by 13 5Is" high (see Figure 2). iMPORTANT: You must
install furnace horizontally. Do not install furnace vertically.
40,000 Btu/Hr Model: Cut a 20 5h6" wide by 14 3Is" high opening in wall (see
Figure 2). Start your cut right next to stud you are going to anchor cabinet to.
Cut across wall and through the next stud. Stop cut at proper width. IMPOR-
TANT: You must install furnace horizontally. Do not install furnace vertically.
4. 25,000 Btu/Hr Model: Mark screw locations on wall (see Figure 2). Make sure
screws will anchor into studs. Make sure screw locations match screw holes on
cabinet flange.
40,000 Btu/Hr Model: Mark screw locations on wall (see Figure 2). Make sure
screws on one side will anchor into studs. Screws on other side will only anchor
in wall material. Make sure screw locations match screw holes on cabinet
flange.
5. 25,000 Btu/Hr Model: Use a proper-sized drill bit, Drill holes through wal! and
into studs at marked locations.
40,000 Btu/Hr Model: Use a proper-sized drill bit. On wal! stud side of opening,
drill holes through wail and into studs at marked locations. On other side, drill
holes through wall material.
6. Insert furnace into opening. Do this from inside the room. Secure furnace to
wall with four large screws provided.
7. On outside of wall, caulk opening between the cabinet and the rough edges of
opening.
Wall Studs Wall Studs
I
14 1/4" 20 5/16"
Screw _ Screw
Locations Wall _ Well Opening _"
Opening
!
25,000 Btu/Hr Model 40,000 Btu/Hr Model
Figure 2 - Wall Openings and Screw Locations
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201842
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