Installation
Instructions
Models:
WHB30, WHB33, WHB36, WHB42
WTB30, WTB33, WTB36, WTB42
These refractories are intended for use with the Novus NDV and NBV Series gas appliances. Check with your local build-
ing 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 clarification of any of the
instructions contained here, contact your Hearth & Home Technologies Inc. dealer. For the dealer nearest you, please visit
Note: An arrow (¨) found in the text signifies change in content.
CAUTION
! WARNING
Sharp Edges
Hot Surfaces
•
Wear protective gloves and safety
glasses during installation.
•
Install this refractory only after the appliance
has cooled and the gas and electricity have
been shut off..
WHB
WTB
Heatilator • WHB/WTB Refractory • 4055-186 Rev C • 03/08
1
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5. If lava rock has been placed in appliance, clean the rock 7. To secure the side refractory in place, remove either the
away from the firebox sides to make room for the side
refractory. See Figure 7.
middle or back screw in the firebox top.Attach a refractory
bracket (using the screw removed) to the firebox top. See
Figure 10.
Figure 7
Move Lava Rock to Install Side Refractory
Figure 10
Attach Refractory Bracket
6. Carefully install a side refractory. See Figures 8 and 9.
8. Repeat Step 3 to install the other side refractory piece.
See Figure 11.
Figure 8
Position Side Refractory
Figure 11
Install Other Side Refractory
9. Adjust the back and sides so no gaps are visible in the
corners where the pieces come together.
10.Repeat Step 7. to install the other side.
11. Reinstall the fixed glass assembly and screen.
12.Restore power and gas flow. Your refractory installation
is now complete.
Figure 9
Set Side Refractory in Place
Heatilator • WHB/WTB Refractory • 4055-186 Rev C • 03/08
3
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12. Convert Refractory Kit to Fit B-Vent Appliance
a. Locate the back refractory piece and lay the brick side down
on a flat surface. Locate the indicator marks on the back
of the refractory piece. Lay a straight edge on the indicator
marks and cut with a utility knife. See Figure 8.
Figure 8
b. B-Vent/Herringbone - cut at line, discard lower (smaller)
portion. Install cut side down. Refer to Figure 9.
c. Direct Vent/Herringbone - Install whole refractory.
(back of Herringbone refractory)
(bottom for b-vent)
Figure 9
d. B-Vent/Traditional - cut at line, discard upper (smaller)
portion. Install cut side down. Refer to Figure 10.
e. Direct Vent/Traditional - Install whole refractory.
(back of Traditional refractory)
(bottom for b-vent)
Figure 10
4
Heatilator • WHB/WTB Refractory • 4055-186 Rev C • 03/08
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