Heatilator NB3630M Owner's Manual page 63

Center piece is not
part of the refractory
for the 3630 model
Traditional Brick Refractory
Center piece is not part
of the refractory for the
3630 model.
Herringbone Brick Refractory
Heatilator • Novus BV-Mesh • 4031-553 Rev F • 11/07
TB33
HB33
63