Desa DVF32TMHST Disassembling the Hearth and Burner System, Main Burner Orifice Conversion

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DISASSEMBLING THE HEARTH AND BURNER SYSTEM

1.Remove the grate with the logs left in place, by lifting the grate portion off of its stands and place the entire assembly outside of the unit for ease of reassembly. (Refer to figure 34 Disassembly of Hearth System)

2.Remove the two 5/16" hex type screws holding the burner in place and slide the burner forward off of the orifice mount while lifting up.

3.Remove the two side brick panels by lifting up the inner edge above the hearth pan and sliding the brick inward into the grate stand, then lifting out the outer edge over the flange of the facing. If necessary you can push the hearth pan over to one extreme side then re-center it to remove the remaining brick on the opposite side of firebox.

4.With the hearth pan centered lift the end flange of the pan off of the rear brick stand and raise it up and out of the firebox.

Figure 34 Disassembly of the Hearth System

MAIN BURNER ORIFICE CONVERSION

Figure 35

Removing/Replacing Orifices

Using a 7/8" open end or an adjustable back-up, wrench on the orifice mount remove the main burner orifice with a 11/16" open end wrench. (See figure 35).

Replace the main burner orifice with the one included with the kit and identified with the #51 stamped on the side. Apply a light amount of a Propane/LP resistant sealant to the male threads and retighten the orifice into its mount using a back-up wrench to maintain its centered position.

PILOT BURNER ORIFICE CONVERSION

1.Remove the pilot hood by pulling up until it disengages from the barrel. Do not remove the barrel clip (see figure 35).

2.Remove the pilot orifice from inside the barrel using a 5/32” allen wrench to unscrew the orifice.

3.Replace pilot orifice with LP orifice supplied with this kit. The number 30 is stamped on the sleeve for identification. Insert the small end of the new pilot orifice into the barrel and thread until tight with the allen wrench.

4.Line up the notch on pilot hood to the positioning tab on the barrel receiver and snap back into position.

IMPORTANT: Be careful not to bend or kink the aluminum tubing during conversion. Make sure the pilot hood and orifice are properly mated and aligned after finishing this conversion.

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Contents Industrial Drive Save this BookREV E Contents Minimum Clearances to Combustibles For Your SafetyCheck Local Codes Before Installing this Fireplace Selecting LocationVent Clearances ClearancesMantel Clearances Vent Termination ClearancesVent Pipe and Termination Clearances Vent Installation Vent Installation InstructionsOffset Elbow Wire WAY Electrical HOOK-UP and Remote Receiver DiagramFraming GAS Line HOOK-UP GAS Supply TestingGAS Control Valve GAS Ratings Type of GAS Natural Propane Pilot AdjustmentPilot Assembly Sediment TrapLOG a Placement LOG SET InstallationCleaning Glass Door Glass Door Cleaning and ReplacementReplacing Glass Doors Burner Removal Burner Flame AdjustmentBurner Flame Venturi / Orifice ConnectionDecorative Facing Operating Guidelines and Maintenance InstructionsPage Accesory and Replacement Parts Wiring Diagram Observed Problem Possible Cause Corrective Action Should be Done by a Qualified Technician Accessing the FireplaceMain Burner Orifice Conversion Disassembling the Hearth and Burner SystemPilot Burner Orifice Conversion GAS Control Valve Conversion Reinstalling the Main BurnerFinal Preparation Identification Label

DVF32TMHST specifications

The Desa DVF32TMHST is a sophisticated vent-free gas fireplace that stands out for its combination of elegance, efficiency, and advanced technology. Designed to provide warmth and comfort, this unit offers a reliable heating solution for both modern and traditional spaces.

One of the standout features of the DVF32TMHST is its impressive heating capacity, capable of warming areas up to 1,200 square feet. This makes it an ideal choice for living rooms, open-concept spaces, or any area where consistent warmth is desired. The unit utilizes propane or natural gas, making it versatile for various home setups while ensuring operational efficiency.

A notable characteristic of the DVF32TMHST is its vent-free technology. This means it does not require traditional flue or venting systems, allowing for flexible installation and minimizing structural modifications. The vent-free design also contributes to optimal heat retention, ensuring that more warmth stays within the room rather than being lost through a chimney.

The DVF32TMHST is equipped with an advanced burner system that simulates realistic flames, providing a captivating visual that enhances any room's atmosphere. The realism of the flames is paired with a variety of decorative media options, such as ceramic logs and glowing embers, allowing homeowners to customize the appearance to suit their taste.

Furthermore, the unit incorporates safety features such as an oxygen depletion sensor (ODS), which automatically shuts off the fireplace if oxygen levels fall below a safe threshold. This provides peace of mind for users, making it a safe choice for any living area.

Efficiency is paramount in the design of the DVF32TMHST, boasting an impressive 99% efficiency rating which translates to lower heating costs for homeowners. Additionally, the fireplace operates silently, ensuring that the ambiance of any gathering remains uninterrupted while providing warmth.

In summary, the Desa DVF32TMHST vent-free gas fireplace combines stylish design with cutting-edge technology and features, making it a remarkable heating solution for any home. Its ability to provide substantial heat without the need for venting, coupled with advanced safety features and customizable aesthetics, makes it a worthy addition for those seeking comfort and elegance in their living spaces.
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