AROUND CONDUIT WITH
NOTE: FILL ANY GAPS
MORTAR.
NON-COMBUSTIBLE).
TYPICAL PLACEMENT OF
(SEE DETAIL BELOW).
SUPPLY AIR VENTILATION
GAS OR ELECTRIC CONDUIT
FIRE BRICK SIDE
CONDUIT
GAS OR ELECTRIC
EXTERIOR
EXTERIOR AIR VENT
WITH DRESS PLATE.
WALL
FLEX DUCT TO FIREPLACE
FIREBOX, (ALL PARTS
41
Two (2) 4" Combustion air inlet kits are required by
Earthcore and may help improve fireplace operation in homes
tightly sealed and with other ventilating appliances installed.
(Figures 39 & 40)
The following is a general representation of
a combustion air kit that is required by Earthcore Industries.
41
Access Modification - Combustion Air Kits, Gas & Electrical Line Feed
The combustion air kit consist of a sliding stainless
steel access door affixed to a four inch (4”) in diameter
stainless steel sleeve approximately twelve inches (12”)
long. An exterior vent with dress plate, weather hood and
rodent prevention screen of a maximum one-quarter inch
(1/4”) wire mesh completes the kit. The MAGNUM
fireplaces will require two (2) four inch (4”) air kits.
The access door is fitted into the front 1/3 of the side
wall. The twelve inch (12”) long sleeve can be introduced
into the firebox side wall by core drilling an appropriately
sized hole at the selected firebox location. Keep the top
of the access hole no more than six inches (6”) above the
finished firebrick floor. The hole size should allow for a one-
quarter inch (1/4”) mortar joint around the air access sleeve
for heat expansion. Do not install in the rear of the firebox
because sparks will be blown into room.
The sleeve passes through the firebox side wall and
must be connected to a UL Listed Air Duct pipe that leads
to the source for outside combustion air, as directly as
possible from the fireplace. The duct cannot rise vertical
higher than the finished opening of the firebox.
We recommend not to exceed twenty feet (20’) of four
inch (4”) pipe. If you require a longer length we recommend
that you use a six inch (6”) diameter pipe for the complete
run of up to forty feet (40’).
WARNING:
Do not use combustible duct material. Avoid
installing a combustion air inlet where the opening could be
blocked by snow, bushes or other obstacles. Air inlet ducts
shall not terminate in attic, basement or garage spaces.
Gas Line Feed
For a fireplace having the provision for installation of a gas
pipe, the provision is intended only for connection to a
decorative gas appliance.
CAUTION:
When using the decorative appliance, the
fireplace damper must be set in the fully open position.
Gas line for gas log sets used in the Isokern firebox can
be routed through the side wall, by drilling an appropriately
sized hole using a masonry drill bit.
(Figure 41)
Electrical Line Feed
Can be routed through the MAGNUM firebox side walls
by drilling an appropriately sized hole using a masonry drill
bit. Be sure to follow the gas log Appliance Manufacturer’s
explicit electrical line connection instructions for vented
masonry fireplace installations. Gas line and electric line
must be fed through separate access holes.
CAUTION:
All access holes must be grouted with mortar –
after line or conduit feed - to seal any gaps or cracks around
line feed conduits.
(Figure 41)
AROUND CONDUIT WITH
NOTE: FILL ANY GAPS
MORTAR.
NON-COMBUSTIBLE).
TYPICAL PLACEMENT OF
(SEE DETAIL BELOW).
SUPPLY AIR VENTILATION
GAS OR ELECTRIC CONDUIT
FIRE BRICK SIDE
CONDUIT
GAS OR ELECTRIC
EXTERIOR
EXTERIOR AIR VENT
WITH DRESS PLATE.
WALL
FLEX DUCT TO FIREPLACE
FIREBOX, (ALL PARTS
FIGURE 39
FIGURE 40
FIGURE 41
Earthcore Industries
MAGNUM
Series Fireplace
COMBUSTION AIR VENTILATION
