111347-01B
For more information, visit www.desatech.com
For more information, visit www.desatech.com
11
11
Propane/LP
Supply Tank
External Regulator
INSTALLATION
Continued
Figure 13 - External Regulator With Vent Pointing Down
Vent Pointing Down
the optional CSA design-certified equipment shutoff valve from
your dealer. See Accessories, page 28.
For propane/LP units, the installer must supply an external regula-
tor. The external regulator will reduce incoming gas pressure. You
must reduce incoming gas pressure to between 11 and 14 inches of
water. If you do not reduce incoming gas pressure, heater regulator
damage could occur. Install external regulator with the vent point-
ing down as shown in Figure 13. Pointing the vent down protects it
from freezing rain or sleet.
CAUTION: Use only new, black iron or steel pipe.
Internally-tinned copper tubing may be used in certain
areas. Check your local codes. Use pipe of 1/2" diam-
eter or greater to allow proper gas volume to heater. If
pipe is too small, undue loss of volume will occur.
Installation must include an equipment shutoff valve, union, and
plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook
up. NPT tap must be upstream from heater (see Figure 14, page 12).
IMPORTANT:
Install equipment shutoff valve in an accessible
location. The equipment shutoff valve is for turning on or shutting
off the gas to the appliance.
Check your building codes for any special requirements for locating
equipment shutoff valve to fireplaces.
Apply pipe joint sealant lightly to male NPT threads. This will
prevent excess sealant from going into pipe. Excess sealant in pipe
could result in clogged heater valves.
WARNING: Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
We recommend that you install a sediment trap in supply line as shown
in Figures 14, page 13. Locate sediment trap where it is within reach for
cleaning. Install in piping system between fuel supply and heater. Locate
sediment trap where trapped matter is not likely to freeze. A sediment trap
traps moisture and contaminants. This keeps them from going into heater
controls. If sediment trap is not installed or is installed wrong, heater may
not run properly.
CONNECTING TO GAS SUPPLY
WARNING: This appliance requires a 1/2" NPT
(National Pipe Thread) inlet connection to the pres-
sure regulator.
WARNING: A qualified service person must con-
nect 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 regulator (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
* A CSA design-certified equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge connection. Purchase
Figure 12 - Attaching Heater to Fireplace Floor
Masonry
Screw
Screw Holes
in Base
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
base (see Figure 12). If installing in a brick-bottom fireplace,
mark screw locations in mortar joint of bricks.
8. Remove heater base from fireplace.
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).
INSTALLATION
Installing Heater Base Assembly (Cont.)
Connecting To Gas Supply
