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Hearth and Home Technolgies • Oxford Direct/Natural Vent Installation Manual_R3 • 02/19
E. Gas Supply Line Connection
Check the Rating Plate attached by a steel cable to the
firebox, to confirm that you have the appropriate firebox for
the type of fuel to be used. The Oxford may be converted
from one gas to another using the appropriate Fuel
Conversion Kit.
This appliance should only be connected by a
qualified gas technician. Test to confirm manifold
pressures as specified below.
The heater and its individual shutoff valve must be
disconnected from the gas supply piping during any
pressure testing of that system at test pressures in
excess of 1/2 psig (3.5 kPa).
The heater must be isolated from the gas supply
piping system by closing its individual manual
shutoff valve during any pressure testing of the gas
supply piping system at test pressure equal to or
less than 1/2 psig.
There must be a gas shutoff between the stove and
the supply.
In order to connect Natural Gas, use a fitting with
3/8” NPT nipple on the valve side and 1/2” natural
gas supply line with an input of 28,000 BTUs at a
manifold pressure of 3.5” and minimum inlet supply
for adjustment of 5.5” w.c.
In order to connect Propane, use a fitting with 3/8”
NPT nipple on the valve side and 1/2” propane
gas supply line with an input of 28,000 BTUs at a
manifold pressure of 10.0” and minimum inlet supply
for adjustment of 11.0” w.c.
CAUTION
!
In the U.S.;
Gas connection should be made in accordance
with current National Fuel Gas Code, ANSI Z223.1/NFPA
54. Since some municipalities have additional local codes,
be sure to consult your local authority.
In Canada;
consult the local authority and CSA-B149.1
installation code.
Air Shutter Adjustment
The Oxford is shipped from the factory with the air shutter
adjusted to the minimum allowed opening. Refer to Table 1.
Based on the altitude where the stove is located, a shutter
adjustment is acceptable to provide a mixed balance of
flame color/glow. To adjust the shutter opening, follow the
steps below.
NOTE:
The air shutter may only be adjusted to a more open
position. The factory setting is the minimum allowable air
shutter opening, Figures 4.3 and 4.4.
Table 1. Air Shutter Adjustment
Minimum rear injector inlet openings.
Model
Natural Gas
Propane
Direct Vent
1/2"
1/2"
Natural Vent
1/2"
1"
Light the pilot according to the directions before going to the
next step.
F. Burner Information
The appliance must only use the gas specified on the
rating plate, unless converted using a Fuel Conversion Kit.
Conversion instructions are provided with each kit.
CAUTION
!
Always check for gas leaks with a mild soap and
water solution. Do not use an open flame for leak
testing.
To adjust the air shutter, the following procedures should be
followed:
1. Remove barrier screen first by pulling out and up.
Remove stove front. Lift stove front up and then swing
bottom out and away to disengage from the stove body,
Figure 4.1.
2. Swing open the swiveling latches at the top left and right
corners of the glass frame.
ST1125
remove front
Figure 4.1
- Remove stove front.