Desa H18N Owner's Operation And Installation Manual page 14

5. Center heater base and logs front-to-back
and side-to-side in fireplace.
6. Carefully remove logs without moving
heater base.
7. Mark screw locations through one hole
on each side of the mounting bracket
(see Figures 13 or 14, depending on
your model). If installing in a brick-bottom
fireplace, mark screw locations in mortar
joint of bricks.
8. Remove heater base from fireplace. If
installing optional control accessories,
do so at this time (Remote-Ready Models
Only). Follow all directions provided with
accessory.
9. Drill holes at marked locations using 3/16"
drill bit.
10. Attach base assembly to fireplace floor
using two masonry screws (in hardware
package).
Vintage Oak
Log Chassis
(Variable
Manually-
Controlled
Models)
Bracket with
Screw Holes
Figure 13 - Attaching Heater to Fireplace
Floor (Variable Manually-Controlled
Models Only)
Golden Oak
Model Chassis
(Remote-Ready
Models)
Bracket with
Screw Holes
Figure 14 - Attaching Base Assembly
to Fireplace Floor (Remote Ready
Models Only)
14
INSTALLATION
Continued
CONNECTING TO GAS SUPPLY
requires a 1/2" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
vice person must connect heater
to gas supply. Follow all local
codes.
propane/LP fireplace directly
to the propane/LP supply. This
heater requires an external regu-
lator (not supplied). Install the
external regulator between the
Masonry
heater and propane/LP supply.
Screw
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)
Masonry
• sealant (resistant to propane/LP gas)
Screw
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* 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.
For propane/LP units, the installer must
supply an external regulator. The external
regulator will reduce incoming gas pressure.
You must reduce incoming gas pressure to
between 11" and 14" of water. If you do not re-
www.desatech.com
WARNING: This appliance
WARNING: A qualified ser-
CAUTION: Never connect
WARNING: Never connect
110399-01J