Hearth & Home Technologies WTB33 Manual De Usuario

Heatilator • WHB/WTB Refractory • 4055-186 Rev C • 03/08

4

a.  Locate the back refractory piece and lay the brick side down 

on a fl at 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.

(back of Herringbone refractory)

(bottom for b-vent)

(back of Traditional refractory)

(bottom for b-vent)

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.

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.