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Heatilator • WHB/WTB Refractory • 4055-186 Rev C • 03/08
3
5. If lava rock has been placed in appliance, clean the rock
away from the fi rebox sides to make room for the side
refractory. See Figure 7.
Figure 7 Move Lava Rock to Install Side Refractory
6. Carefully install a side refractory. See Figures 8 and 9.
Figure 8 Position Side Refractory
Figure 9 Set Side Refractory in Place
7. To secure the side refractory in place, remove either the
middle or back screw in the fi rebox top. Attach a refractory
bracket (using the screw removed) to the fi rebox top. See
Figure 10.
Figure 10 Attach Refractory Bracket
8. Repeat Step 3 to install the other side refractory piece.
See Figure 11.
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 fi xed glass assembly and screen.
12. Restore power and gas fl ow. Your refractory installation
is now complete.
Figure 11 Install Other Side Refractory