INSTALLATION

Continued

For propane/LP units, the installer must supply an external regulator. The external regulator will re- duce incoming gas pressure. You must reduce in- coming gas pressure to between 11 and 14 inches 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 17. Pointing the vent down pro- tects it from freezing rain or sleet.

CAUTION:Useonlynew,black ironorsteelpipe.Internally-tinned copper tubing may be used in cer- tainareas.Checkyourlocalcodes. Usepipeof1/2"diameterorgreater to allow proper gas volume to fire- place. 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 fireplace (see Figure 18).

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 re- quirements 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 fireplace valves. Never use sealant on flare threads.

External

Propane/LP

Regulator

Supply Tank

Vent Pointing Down

Figure 17 - External Regulator on Propane/LP Supply Tank with Vent Pointing Down

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 Figure 18. Locate sedi- ment trap where it is within reach for cleaning. Install in piping system between fuel supply and fireplace. Locate sediment trap where trapped mat- ter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into fireplace gas controls. If sediment trap is not installed or is installed wrong, fireplace may not run properly.

CSA Design-Certified

Equipment Shutoff Valve

With 1/8" NPT Tap*

 

Natural Gas

 

From Gas

 

Meter

 

(5" W.C.** to

 

10.5" W.C.

3" Minimum

Pressure)

 

 

 

 

 

Propane/LP

Cap Pipe

Tee

 

From External

Nipple

Joint

 

Regulator

 

 

 

 

(11" W.C.** to

 

 

 

 

Sediment Trap

 

14" W.C.

 

 

 

 

Pressure)

Figure 18 - Gas Connection

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, pages 32 through 34.

**Minimum inlet pressure for purpose of input adjustment.

113132-01A

www.desatech.com

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Desa EFS33PRB, EFS33NRB, VSGF33PRB, VSGF33NRB installation manual Propane/LP, Gas Connection
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VSGF33PRB, EFS33PRB, VSGF33NRB, EFS33NRB specifications

Desa EFS33PRB, VSGF33PRB, EFS33NRB, and VSGF33NRB are four highly regarded heating appliances known for their efficient performance and user-friendly features. Each of these models offers a unique set of characteristics, making them suitable for different heating needs and preferences.

The Desa EFS33PRB is a prominent model designed with energy efficiency in mind. It utilizes advanced combustion technology that maximizes heat output while reducing fuel consumption. This model features a sleek, modern design complemented by a user-friendly control panel. The adjustable thermostat allows users to set their desired temperature easily, ensuring comfort throughout the space. Additionally, the EFS33PRB is equipped with an automatic shut-off mechanism for enhanced safety, providing peace of mind during usage.

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Lastly, the VSGF33NRB shares many characteristics with its counterparts but enhances its appeal with an increased focus on eco-friendliness. This model is crafted to produce lower emissions, contributing positively to environmental sustainability. It boasts a high-efficiency rating, thus not only providing effective heating solutions but also reducing energy bills.

In summary, the Desa EFS33PRB, VSGF33PRB, EFS33NRB, and VSGF33NRB collectively represent a complete range of heating options suitable for various applications. Their dedication to efficiency, safety, and user convenience makes them desirable choices for consumers seeking reliable and innovative heating solutions. Whether it be through advanced technology, enhanced safety features, or eco-friendly capabilities, these models stand out in the competitive market of heating appliances.
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