![background image](http://html1.mh-extra.com/html/desa/ez18n/ez18n_owners-operation-and-installation-manual_2485859013.webp)
www.desatech.com
119678-01C
13
INSTALLATION
Continued
Installation Items Needed
• hardware package (provided with heater)
• approved flexible gas hose and fittings (not
provided) (if allowed by local codes)
• sealant (resistant to propane/LP gas, not
provided)
• electric drill with 3/16" masonry drill bit
1. Apply pipe joint sealant lightly to male
threads of gas fitting (not provided).
Connect approved flexible gas hose to
regulator of heater (see Figure 11).
2.
Position heater base assembly in fireplace.
3. Mark screw locations through holes in
front panel of base (see Figure 12). If
installing in a brick bottom fireplace, mark
screw locations in mortar joint of bricks.
4. Remove heater base from fireplace.
5. Drill holes at marked locations using 3/16"
drill bit.
6. Attach base, through holes in front panel
of base, to fireplace floor using masonry
screws provided in hardware package
(see Figure 12).
7. Connect to gas supply. See
Connecting
To Gas Supply
.
Figure 11 - Attaching Flexible Gas Hose
to Heater Gas Regulator
Figure 12 - Attaching Base to Fireplace
Floor
Masonry Screw
CONNECTING TO GAS SUPPLY
WARNING: This appliance
requires a 1/2" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualified
service person must connect
heater to gas supply. Follow all
local codes.
CAUTION: Never connect
propane/LP fireplace directly
to the propane/LP supply. This
heater requires an external regu
-
lator (not supplied). Install the
external regulator between the
heater and propane/LP supply.
WARNING: Never connect
natural gas fireplace to private
(non-utility) gas wells. This
gas is commonly known as
wellhead gas.
Installation Items Needed
Before installing heater, make sure you have
the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved flexible gas line with gas con
-
nector (if allowed by local codes) (not
provided)
* A CSA design-certified equipment shutoff
valve with 1/8" NPT tap is an acceptable al
-
ternative to test gauge connection. Purchase
the optional CSA design-certified equipment
shutoff valve from your dealer.
Heater Gas Regulator
Flexible Gas Hose
(if allowed by local
codes)