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111160-01A
For more information, visit www.desatech.com
For more information, visit www.desatech.com
11
11
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 heater 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.
Figure 12 - Attaching Flexible Gas Hose to Heater Gas Regulator
INSTALLATION
Continued
7. Mark screw locations through holes in mounting brackets (see
Figure 13 and 14). 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) (see Figure 13 or 14).
Figure 13 - Attaching Base Assembly to Fireplace Floor - Dual
Burner Model
Figure 14 - Attaching Base Assembly to Fireplace Floor - Single
Burner Model
Heater Gas
Regulator
Flexible Gas Hose
(if allowed by local
codes)
Fitting
Masonry
Screw
Mounting
Bracket
INSTALLATION
Installing Heater Base Assembly (Cont.)
Connecting to Gas Supply
Masonry
Screw
Mounting
Bracket
CONNECTING TO GAS SUPPLY
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
the optional CSA design-certified equipment shutoff valve from
your dealer. See Accessories, page 26.
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 inches of water.
If you do not reduce incoming gas pressure, heater regulator damage
could occur. Install external regulator with the vent pointing down as
shown in Figure 15, page 12. 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.