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DESA INTERNATIONAL
UNVENTED PROPANE/LP GAS FIREPLACE
INSTALLATION
Continued
Mantel Clearances for Built-In
Installation
If placing mantel above built-in fireplace,
you must meet minimum clearance between
mantel shelf and top of fireplace opening.
If your installation does not meet the above
minimum clearances, you must:
• raise the mantel to an acceptable height,
OR
• remove the mantel.
Wall board or facing
material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments or
other similar projec-
tions off of the facing
material.
Framing
Material
Firebox
Wire-mesh
Screen
Figure 16 - Minimum Mantel Clearances for Built-In Installation
INSTALLING GAS PIPING TO
FIREPLACE LOCATION
NOTICE: A qualified service per-
son must connect fireplace to
gas supply. Follow all local codes.
CAUTION: Never connect
heater directly to the propane sup-
ply. This heater requires an exter-
nal regulator (not supplied). Install
the external regulator between the
heater and propane supply.
Mantel Shelf
10"
8"
6"
1
2
"
/2
Non-combustible
Material May
Project Off this
Surface above
the Firebox Hood
13" 16" 19" 21"
Note: All vertical
measurements are
from top of fireplace
Supplied Firebox
hood opening to bottom
Hood Must Be
of mantel shelf.
Used at All Times
These minimum
clearances replace any
other recommended
clearances supplied with
your ANSI Z21.11.2
approved gas logs.
Installation Items Needed
Before installing fireplace, make sure you
have the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to LP/propane gas)
• manual shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved flexible gas line with gas con-
* An A.G.A. design-certified manual shutoff
valve with 1/8" NPT tap is an acceptable
alternative to test gauge connection. Pur-
chase the optional A.G.A. design-certified
manual shutoff valve from your dealer. See
Accessories, pages 22 and 23.
The installer must supply an external regu-
lator. 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 incom-
ing gas pressure, heater regulator damage
could occur. Install external regulator with
the vent pointing down as shown in Figure
17. Pointing the vent down protects it from
freezing rain or sleet.
External
Regulator
Figure 17 - External Regulator with Vent
Pointing Down
10
nector (if allowed by local codes) (not
provided)
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of 1/2"
diameter or greater to allow
proper gas volume to fireplace. If
pipe is too small, undue loss of
pressure will occur.
Vent
Pointing
Down
Propane
Supply
Tank
104353
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