VENT INSTALLATION INSTRUCTIONS

1.Install pipe to fireplace collar adapter located on back of unit at a 45 deg. Angle. Connect our starting pipe to a 45 deg. Starting section by sliding it over the collar adapter on the fireplace. Twist-lock for proper installation check to insure proper connection (see figure 7).

Figure 7

VENT INSTALLATION

2.Once the elbow is properly fastened to the fireplace adapter, continue to install the remainder of the pipe for the desired installation.

3.Install every section of the pipe making sure that all joints are properly twist-locked.

4.After steps 1, 2 and 3 are completed, install the vent termination. Depending on location of termination, you may use a vertical or horizontal termination.

5.Depending on the wall thickness, allow one inch to protrude from internal wall as shown in figure 8.

Figure 8

6.An optional siding standoff may be installed between the vent cap exterior wall. Secure horizontal top to standoff and then secure the complete assembly to wall (see figure 8). The vent termination must be removable for service pipe inspection.

7.For vertical installation, use vertical termination.

The vent system serves as the “chimney” as well as the combustion air supply (air intake). The horizontal run must have a rise of ¼” (6 mm) for every 1 foot (305 mm) of horizontal run towards the termination. Never allow the vent to run downward. The maximum horizontal run depends on the vertical rise from fireplace adapter collar to the vent termination (see table below).

VERTICAL

 

HORIZONTAL

ft

mm

 

ft

mm

0

 

to

1'

305

1

305

to

4

1219

2

610

to

8

2438

3

914

to

12

3658

4

1219

to

16

4877

5

1524

to

15

4572

6

1829

to

14

4267

7

2134

to

13

3962

8

2438

to

12

3658

WARNING: Vent pipe air space clearances to combustibles are 1” on all sides except on the horizontal sections, which require 2” clearances from the top of the pipe. Where the termination cap penetrates a combustible wall, 1” air space clearance is required.

When installing length of pipe over 3 ft. (914 mm), support the pipe every 3 ft. (914 mm) using metal straps. Vertical to horizontal pipe must be kept at a one foot (305 mm) to 4 ft. (1219 mm) ratio with a maximum run of no more than 20 ft.

If an offset is necessary in the attic to avoid obstruction, it is important to support the vent pipe every 3 ft. (914 mm), to avoid excessive stress on the elbows and possible separation see figure 9).

 

 

 

 

 

 

 

 

 

Figure 9

OFFSET ELBOW

 

 

 

 

-5 -

For more information, visit www.desatech.com

Page 5 Page 7
Page 6
Image 6
Desa DVF32TMHST installation instructions Vent Installation Instructions, Offset Elbow
Page 5 Page 7

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.
Top Page Image Contents