Vermont Castings • Defiant Flexburn 1975 Installation Manual_R1 • 2021 - ___ • 08/21
18
8390-035i
ST635
Encore
Install thermostat
handle
2/01
Figure 5.8
F. Attach Damper Handle
Use the 1/4"-20 x 3" screw to attach the damper handle to
the damper stub on the left side.
G. Install Catalyst Temperature Probe
To install the catalyst temperature probe, remove the hole
plug from the cast iron wall behind the rear shield, Figure 5.7.
Use two #10 sheet metal screws and bracket supplied, secure
the bracket and probe to the back of your stove, Figure 5.7.
H. Attach Primary Air Thermostat Handle
The primary air thermostat handle is the smaller of the two
black handles. Secure the handle to the stub on the right
side of the stove with an 8-32 x 2" slot head machine screw,
Figure 5.8.
WARNING
The flue collar heat shield must be installed in all vertical
installations. The flue collar heat shield is not used when
the flue collar is in the rear exit position.
D. Adjust the Leg Levelers
Lift the stove slightly so there is no weight on the leg while
making the adjustment.
E. Reverse Flue Collar (If necessary)
Remove the (4) sheet metal screws that hold the flue collar
heat shield in place. Once heat shield is removed, remove the
(2) screws that attach the flue collar to the back of the stove,
Figure 5.6. Be sure the gasket around the flue collar opening
is in position when you screw the collar back onto the stove.
Figure 5.7
1.4"
1.8"
Bracket mounting screw hole location
Fold bracket strap over
catalyst probe shaft
and secure with screw.
Insert catalyst probe
through sheetmetal and
cast iron back and twist &
push through fiber panel.
Remove hold plug
from cast iron back.
Insert catalyst probe bracket
with self-drilling screw.
C. Install the Bottom Heat Shield
NOTE:
The Bottom Heat Shield is required in most installations.
Refer to Floor Protection for further details.
1. Install (4) 1/4-20 x 3/8" hex bolts that were previously
removed from the shipping brackets and install into the
four holes located under the stove, Figure 5.5.
2. Align the bottom heat shield key holes to the four hex bolts
previously installed into base, Figure 5.5. The outside air
cutout hole should be toward the rear of the stove.
3. Attach the heat shield sides by passing the slots over the
bolt heads. Tighten the hex head bolts, Figure 5.5.
Figure 5.5
- Attach the bottom heat shield.
Bottom Heat Shield
ST857
abottom heat shield
12/05
1/10
Figure 5.6
- Install flue collar heat shield.
ST1180
flue collar heat shield
Sheet Metal
Screws
Sheet Metal
Screws
Flue Collar
Heat Shield
