Burn Only the Fuel for which the Heater is Equipped
the clarity Direct vent is built for use with Propane
but can be converted to burn natural Gas.the label on the
burner system module indicates the fuel for which it is
equipped, and must be marked upon installation of the stove
or conversion kit. a second label, located near the rating
plate, also indicates the fuel type.
For fuel conversion information, see APPENDIX A
(page 28)
Making The Connection
the gas inlet is located at
the bottom right rear of the
stove. The inlet fitting is a 1/2"
female flare flexible pipe.
a separate gas shut-off valve
and a 1/8" n.P.t. plugged
tapping should be installed
immediately upstream of the
connection to the appliance.
the clarity Direct vent Gas heater must be discon-
nected from the gas supply piping during any pressure
testing of that system at pressures in excess of 1/2 psig
(3.5 kPa).
the clarity gas control valve must be in the oFF posi-
tion during any pressure testing of the gas supply system at
pressures equal to or less than 1/2 psig (3.5 kPa).
WARNING: To avoid pipe compounds from enter-
ing into the gas train, apply compounds only to male
pipe threads and do not apply compound to the first
two threads.
caution: test aLL Joints For LeaKs Be-
Fore oPeratinG
Gas Pressure Requirements
Correct gas pressure and the use of a properly sized
gas supply line are essential for the safe and efficient per
-
formance of this appliance. Make sure that the plumber or
gas supplier checks the gas supply line and gas pressure at
installation.
note: improper gas pressure can affect heater perfor-
mance, flame color, or cause pilot outage.
WARNING: This product must be installed by a li-
censed plumber or gas fitter when installed within the
Commonwealth of Massachusetts.
Natural Gas:
Maximum inlet pressure 7.0" w.c. (1.74 kPa)
Minimum inlet pressure 5.0" w.c. (1.25 kPa)
Gas manifold pressure 3.5" w.c. (0.87 kPa)
LPG Gas:
Maximum inlet pressure 13" w.c. (3.24 kPa)
Minimum inlet pressure 11" w.c. (2.74 kPa)
Gas manifold pressure 10" w.c. (2.49 kPa)
CONNECTING THE HEATER TO A GAS SUPPLY
NATURAL GAS
PROPANE
Pipe Length schedule 40 Pipe
tubing, type L
(Feet)
inside Diameter
outside Diameter
n.G.
L.P.
n.G.
L.P.
0-10
1/2”
3/8”
1/2”
3/8”
1.3 cm
1.0 cm
1.3 cm
1.0 cm
10-40
1/2”
1/2”
5/8”
1/2”
1.3 cm
1.3 cm
1.6 cm
1.3 cm
40-100
1/2”
1/2”
3/4”
1/2”
1.3 cm
1.3 cm
1.6 cm
1.3 cm
100-150
3/4”
1/2”
7/8”
3/4”
2.0 cm
1.3 cm
2.3 cm
2.0 cm
recoMMenDeD Gas PiPe DiaMeter
note: never use PLastic PiPe. checK to conFirM
Whether Your LocaL coDes aLLoW coPPer
tuBinG or GaLvaniZeD PiPe.
installer Fuel Label shown below. note that when
converting to natural Gas, the appropriate label must be
installed.
