Instructions / Assembly

Installing Your Furnace
Attaching Your Furnace
Clear the wall recess of all debris, remove any wood or plaster.
Stand the furnace in front of recess, holding the furnace body at
an angle. Insert flue collar into the opening in the header plate
and raise furnace carefully (Figure 9). Swing bottom of furnace
into wall recess with front edges of legs flush with 2x4 floor plate.
In the holes provided, nail through the legs into studs or floor plate
(Figure 10).
Do not damage gasket glued to underside of header plate when
placing furnace in wall. Avoid nailing the legs so tightly that it
disturbs the inner furnace casing. Do not try to force the furnace
into a smaller-than-specified recess.
REAR OUTLET KIT INSTALLATION (OPTIONAL)
If a Rear Outlet Register Accessory is used, the following
procedure must be completed before placing furnace body into
wall recess. (Figure 11). Attach speed nuts to outer shield and
remove knockout plates from both the outer and inner shields as
follows:
1. Punch in the lower corners with a screwdriver blade.
2. Break the knockout side and bottom connecting tabs by
holding a screwdriver blade sideways against the tab and
striking the head of the screwdriver lightly with a hammer.
3. Swing the plate outward; bend it back and forth to break the
top tabs. Use caution when handling sharp metal edges.
25,000 & 35,000
Btu/hr. Models
Attaching Your Furnace
FIGURE 9 – Insert Furnace
FIGURE 11- Remove Knockout Plates11 -
Remove Knockout Plates
CAUTION: Do not install rear outlet kit where
grille may be blocked by a door, curtains, or any
other obstruction.
FIGURE 10 – Nail Placement
WARNING: Never shear or cut the furnace legs.