12
Earthcore Industries
Vent-Free Gas Firebox
12/2016
Assembly Instructions
3.
Continue with the sequential assembly of the second
and third courses of the side walls and back wall by first
applying grout to the top of the previous layer, setting
the next course above into grout already applied to the
horizontal contact surface of the component below.
Again be sure to grout the vertical joints of the side wall
to back wall connection as each component is joined to
its mate. Look for some mortar to squeeze out along all
joints as a sign of proper sealing of the joint.
(Figure 10)
4.
Once the third, or top course of side walls and back
wall are set in place their top surfaces are to be grouted
with mortar to receive the Vent-Free firebox top plate.
Set the top plate upon the completed side wall/back wall
assembly seeing to it that the grouted contact surfaces
are properly sealed. This completes the assembly of the
Vent-Free firebox rough box components.
(Figure 11)
NOTE:
Make sure that the rough box assembly has
been set level and square. Adjust to level and square,
as necessary, while mortar is still wet. Make a final
inspection of all contact joints to be sure they are properly
sealed. Re-grout any and all gaps as necessary.
The manufacturer requires a minimum one and one
eighth inch (1-1/8”) thick fire brick as a liner to the inside of
the Vent-Free firebox. Thicker rated fire brick may be used
as an option. Also, the pattern for the fire brick interior
lining is not specified and is to be at owner option.
FIGURE 10
FIGURE 11
