FireplaceXtrordinair 44 DV XXL EF Manual page 48

Optional Equipment
4 8
3 Follow the directions below to replace the orifices.
Slide the three air
a
shutters all the way to
the left.
b
Use a 1/2" open end wrench
to unscrew all three orifices.
1/2" Wrench
d
Screw the LP orifice in so the
orifice shoulder protrudes 5/16"
(indicating full insertion).
Travis Industries
Manifold
Rear Orifice
Middle Orifice
Front Orifice
5/16"
4050114
(for qualified installers only)
c
Apply thread sealant to the LP
orifices prior to installation. Use
the chart below to identify the
correct orifices.
Look here for the orifice identification
LP
#55
Front
#55
Middle
#55
Rear
1 0 0 - 0 1 1 4 9
NG
#45
#43
#44