1
Heatilator • WTB Refractory • 4055-186 Rev. D • 8/15
Models:
WTB30, WTB33, WTB36, WTB42
Installation
Instructions
These refractories are intended for use with the Novus
NDV and NBV Series gas appliances. Check with your
local building code agency before you begin installation
to ensure compliance with local codes, including the need
for permits and follow-up inspections. If you encounter
any problems regarding code approvals, or if you need
clari
fi
cation of any of the instructions contained here, con-
tact your Hearth & Home Technologies dealer. For the
dealer nearest you, please visit www.heatilator.com
Figure 1. WTB Refractory
CAUTION! Risk of Cuts and Abrasions.
Wear protec-
tive gloves and safety glasses during installation. Sheet
metal edges are sharp.
WARNING! Risk of Burns!
The
fi
replace shall be turned
off and cooled before installation of the refractory. Hot
surfaces may cause burns.
1. Shut off the electricity to the appliance and turn the
gas shutoff valve to the closed position. See Figure 2.
Remove the screen and glass from the appliance.
Figure 2. Gas Shutoff Valve
2.
If installing this refractory into a B-Vent Appliance,
please go to “To Convert Refractory Kit to Fit B-Vent
Appliance” on page 3 of this manual.
3.
Attach the two long hook-shaped brackets by removing
the two outside screws on the false back and reinstall
the screws. See Figures 3 and 4. Make sure to shorten
the bracket if installing in a B-vent unit. See Figure 5.
Figure 3. Location of Hook-Shaped Brackets
Figure 4. Loosen Brackets
FLUE VISOR MAY NEED TO BE REMOVED
FLUE VISOR MAY NEED TO BE REMOVED
REFRACTORY APPEARANCE
MAY VARY BY MODEL.