INSTALLATION

Installation and Clearances For Vent-Free Operation (Cont.)

9

INSTALLATION

Continued

Carefully follow the instructions below. This will ensure safe installation into a masonry, UL127-listed manufactured fireplace, or listed vent-free firebox.

Minimum Clearances For Side Combustible Material, Side Wall, and Ceiling

A.Clearances from the side of the fireplace cabinet to any com- bustible material and wall should follow diagram in Figure 4.

Example: The face of a mantel, bookshelf, etc. is made of combustible material and protrudes 3 1/2" from the wall. This combustible material must be 4" from the side of the fireplace cabinet (see Figure 4).

Note: When installing your gas logs into a manufactured firebox, follow firebox manufacturer’s instructions for minimum clear- ances to combustible materials.

B.Clearances from the top of the fireplace opening to the ceiling should not be less than 42 inches.

Example

*

*Minimum 16 inches from Side Wall

Figure 4 - Minimum Clearance for Combustible to Wall

If Using Mantel

You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombustible material must extend at least 8 inches up. If noncombustible material is less than 12", you must install the fireplace hood accessory. Even if noncom- bustible material is more than 12", you may need the hood accessory to deflect heat away from your mantel shelf. See Figure 5 and Figures 6 and 7, page 10, for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Install- ing Damper Clamp Accessory for Vented Operation, page 11.

Noncombustible

Requirements for

Material Distance (A)

Safe Installation

 

 

12" or more

Noncombustible material OK.

Between 8" and 12"

24" or 30" Models: Install

 

fireplace hood accessory

 

(GA6050, GA6052, or

 

GA6053 see Accessories,

 

page 34).

Less than 8"

Noncombustible material

 

must be extended to at least

 

8". See Between 8" and 12",

 

above. If you cannot extend

 

material, you must operate

 

heater with flue damper open.

 

 

NOTICE: Manual control heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fire- place opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 11.

Heat Resistant

Material

(A)

Minimum Noncombustible Material Clearances

If Not Using Mantel

Note: If using a mantel proceed to If Using Mantel. If not using a mantel, follow the information on this page.

You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombustible material must extend at least 8" up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). See Figure 5 for minimum clearances.

Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace

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Desa RL24NR, CTB3924NT, CSG3924NR, CTB3924NR, VRL24PR, VRL30PR Minimum Noncombustible Material Clearances, See Between 8
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CSG3924NR, CTB3924NR, VRL24PR, VRL30NR, RL24NR specifications

Desa VRL30NR, CSG3924PR, RL24NR, CSG3924PT, and CTB3924NT are advanced heating units developed by Desa, a brand recognized for its innovation in heating technologies. These models cater to a variety of consumer needs, offering efficient, reliable, and cost-effective heating solutions for residential and commercial applications.

The Desa VRL30NR is a powerful model known for its exceptional performance and efficiency. It features an intuitive digital thermostat for precise temperature control, ensuring optimal comfort. The unit is designed with an advanced airflow system that maximizes heat distribution throughout the space, making it ideal for larger rooms or open-concept spaces. The VRL30NR is also equipped with safety features such as an automatic shut-off mechanism that activates in case of overheating or tip-over, providing added peace of mind.

In contrast, the CSG3924PR and CSG3924PT models offer versatility with a sleek design and robust functionality. Both models come with an adjustable flame height feature, allowing users to customize their heating experience based on preference and room size. These units are designed for easy installation and operation, often incorporating wall-mounted options to save floor space. The incorporation of energy-efficient technologies ensures that they consume less power while still delivering powerful heating output, making them an environmentally friendly choice.

The RL24NR model stands out with its compact design, making it suitable for smaller spaces. This model prioritizes aesthetics without compromising on performance. It is equipped with a quiet operation mode, making it perfect for bedrooms or offices where noise levels need to be minimal. The RL24NR also boasts a quick heat-up time, providing instant warmth when needed.

Lastly, the CTB3924NT model offers the best in technology and features. It includes a built-in air purification system that not only heats but also improves indoor air quality. This model is equipped with Wi-Fi connectivity, allowing users to control their heating remotely via a smartphone app. Its smart technology integrates with home automation systems, enhancing convenience and user experience.

Overall, each of these Desa models provides reliable heating solutions tailored to diverse needs and spaces. Their combined focus on efficiency, safety, and user-friendly features makes them standout options in the competitive heating market.
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