Specifications

18
BFC36 Balanced Flue Heat-Circulating Fireplace
7412647
Installing Line for Gas Logs
MHSC replaces are designed to accept a 1/2” (13 mm)
gas line for installation of an approved gas appliance.
(MHSC manufactures a wide variety of gas logs for use
in MHSC replaces.)
Be sure to have the appliance installed in accordance
with building codes.
Gas connection may enter from either left or right side
of the replace.
Locate appropriate gas line in the outer casing of re-
place and remove insulation from gas line tube. (Fig.
24)
From inside the replace, locate the knockout on the
rebrick -- be sure you are on the appropriate or “gas
line” side of the replace. Using a at bladed screw-
driver or small chisel and hammer, carefully tap around
the knockout until it loosens and falls out.
Install 1/2” (13 mm) certied gas pipe through opening.
After gas pipe installation is complete, use insulation
that was removed from gas line tube to repack space
around the pipe. Material should be inserted from
outside of the replace and packed tightly to totally seal
between the pipe and tube.
NOTE: Gas pipe should not come in contact with
any wood structures until it has reached a point at
least 1” (25 mm) away from replace side.
1"
Min.
FP560a
BFC
Gas line knockout
8/00
1/2"
Hole in Outer Casing
Gas Line
Tube
Ceramic
Knockout
Supply
Line
Repack Insu-
lation
Hole in
Outer Cas-
ing
Ceramic Knockout
(both sides)
FP560a
Fig. 24 Gas line access.
Fireplace Top View
Operation
Before the rst re, the location of the upper refractory
bafe (ceiling panel) should be checked. This part oats
intentionally and may move out of place during ship-
ping or installation of the replace. If the bafe is out
of place, the resulting improper air ow will cause dirty
glass and improper combustion. The bafe should be
centered side-to-side between the refractory sidewalls
and be pulled forward (toward the glass doors) until it
rests on the front sheet metal ledge.
Refer to the publication “How to Enjoy Your Woodburn-
ing Fireplace” for starting and maintaining a wood re.
Note that the BFC36 does not have a damper to open
or close. This is a tremendous efciency increasing
advantage since there is no damper to potentially leave
open after a re dies down. House air will not escape
up the chimney. Note also that the doors should remain
closed at all times except when starting or reloading a
re.
Burn only seasoned rewood. Typically, only two or
three burning logs are needed to provide efcient sup-
plemental heat and a bright decorative re. In general,
fresh wood should not be loaded higher than about 2/3
the height of the rebox.
BTU input of a gas appliance installed in replace
should be rated less than 100,000 BTU/Hr.
Gas pipe installation is intended for connection to a
decorative gas appliance only when (1.) incorporating
an automatic shutoff device and (2.) complying with the
Standard for Decorative Gas Appliances for Installa-
tion in Vented Fireplaces (ANSI Z21.60) or CSA draft
requirements for Gas-Fired Log Lighters for Woodburn-
ing Fireplaces (Draft No. 4, August 1993).
Decorative gas appliance should be installed in accor-
dance with the National Fuel Gas Code, ANSI Z223.1/
NFPA 54 (latest edition).
CAUTION: When using decorative gas
appliance, ue damper must be set in fully
open position. Glass doors on the replace
must also be fully opened.
WARNING: Do not operate an unvented gas
log set in this replace with the chimney
removed.
WARNING: When installing an unvented
gas log set, the model CABL or CABR 4”
adjustable hood must be used.