Installation

Continued

Wall board or facing material (above fireplace) may be of combustible material, including decorative mantel ornaments or other similar projec- tions off of the facing material.

Fireplace

Fireplace Insert

Mantel Shelf

10"

8"

6"

2 1/2"

Noncombustible Material May Project Off this Surface above the Insert Hood

13" 16" 19" 21"

Wire-mesh Screen

Supplied Hood Must Be Used at All Times

Note: All vertical measurements are from top of insert hoo opening to bottom of mantel shelf.

Figure 12 - Minimum Mantel Clearances for Fireplace Insert Installation

Installing Gas Piping to Fireplace Location

WARNING: A qualified service person must connect fireplace Insert to gas supply. Follow all local codes.

CAUTION: Never connect propane/LPheater directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the exter- nal regulator between the heater and propane/LP supply.

WARNING: Never connect natural gas fireplace insert to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

Installation Items Needed

Before installing fireplace insert, 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 connector (if allowed by local codes) (not provided)

*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 34.

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 reduce incoming gas pres- sure, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 13, page 13. Pointing the vent down protects it from freezing rain or sleet.

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Desa GS38 installation manual Installing Gas Piping to Fireplace Location, Installation Items Needed

GS38 specifications

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