Operating instructions
8
Installation Instructions and Owner’s Manual
Unvented Natural Gas Fired Room Heater
 Figure 10
2.  Mark screws locations on wall.
3.  Remove heater from mounting bracket.
4.  If installing bottom mounting screw into hollow 
or solid wall, install wall anchors. Follow steps 1 
through 4 under Attaching to Wall using Anchor. 
If installing bottom mounting screw into wall 
stud, drill holes at marked locations using 9/64” 
drill bit.
5.  Re-place heater onto mounting bracket.
6.  Place spacers between bottom mounting holes 
and wall anchor or drilled hole.
7.  Hold spacer in place with one hand. With the 
other hand, insert mounting screw through 
bottom mounting hole and spacer. Place tip of 
screw in opening of wall anchor or drilled hole.
8.  Tighten both screws until heater is rmly se-
cured to wall. Do not over tighten.
Note: Do not re-place front panel at this time. Re-
place front panel after making gas connections and 
checking for leaks.
FLOOR MOUNTING AWAY FROM WALL:
Installing Support Feet (see gure 11)
1.  Lay heater onto table on its back with bottom 
edge overhanging table edge.
2.  Securely attach feet to bottom of heater using 
2 – self-tapping screws each.
Figure 11
Note: Feet should have long end going out the 
front of heater, and the edge coinciding with side of 
heater. If feet overhang side of the heater, switch 
leg location.
3.  Place heater on non-combustible surface (see 
Locating Heater, page 6) before proceeding 
with gas connection. If this will be a permanent 
location, heater may be locked into position us-
ing anchoring holes in mounting feet.
Note: Use of oor mounting feet will require you to 
use a 3/8 NPT street elbow to make gas connec-
tion.
CONNECTING TO GAS SUPPLY
WARNING: A qualied service person must con-
nect heater to gas supply. Follow all local codes. 
WARNING: This appliance requires a 3/8” NPT 
(National Pipe Thread) inlet connection to the 
pressure regulator. Use of oor mounting feet will 
require you to use a 3/8 NPT street elbow to make 
gas connection. 
CAUTION: Never connect heater to private (non-utility) 
gas well. This gas is commonly known as well-head 
gas. 
IMPORTANT: Check your gas line pressure before 
connecting heater to gas line. Gas line pressure 
must be no greater than 14 inches of water. If gas line 
pressure is higher, heater regulator damage could 
occur.
CAUTION: Use only new black iron or steel pipe. 
Internally-tinned copper tubing may be used in cer-
tain areas. Check your local codes. Use pipe of larger 
enough diameter to allow proper gas volume to heater. 
If pipe is too small, undue loss of pressure will occur. 
Installation must include an equipment shutoff valve, 
union and plugged 1/8” NPT tap. Locate NPT tap within 
reach of test gauge hookup. NPT tap must be upstream 
from heater (see gure 12).
*A CSA/AGA certied equipment shutoff valve with 
1/8” NPT tap is an acceptable alternative to test gauge 
connection. Purchase the CSA/AGA certied equipment 
shutoff valve from your dealer. 
IMPORTANT: Install an equipment shutoff valve in an 
accessible location. The equipment shutoff valve is for 
turning on or shutting off the gas to the appliance.
Apply pipe joint sealant lightly to male threads. This will 
prevent excess sealant from going into pipe. Excess 
sealant in pipe could result in clogged heater fuel train.
CAUTION: Use pipe joint sealant that is resistant to 
natural gas. 
Install sediment trap in supply line as shown in gure 
12. Locate sediment trap where it is within reach for 
cleaning. A sediment trap traps moisture and con-
taminants. This keeps them from going into heater. If 
sediment trap is not installed or is installed improperly, 
heater may not run correctly.
IMPORTANT: Hold pressure regulator with wrench 
when connecting it to gas piping and/or ttings.
Screw 
hole
Screw 
hole










