FIREPLACE INSTALLATION

Continued

Note: For outdoor installations, the fireplace en- closure must allow for adequate drainage and fresh air ventilation. It is recommended that a sealed, corrosion resistant catch pan with provision for drainage be installed under the fireplace within the fireplace enclosure.

HEARTH EXTENSION

A hearth extension projecting a minimum of 16" in front of and a minimum of 8" beyond each side of the fireplace opening is required to protect combustible floor construction in front of the fire- place. Fabricate a hearth extension using a material which meets the following specifications: a layer of noncombustible, inorganic material having a thermal conductivity of K=0.84 BTU IN/FT, HR. F (or less) at 1" thick. For example, if the material selected has a K factor of 0.25, such as glass fiber, the following formula would apply:

0.25x 1.0" = 0.30" thickness required

Thermal conductivity "K" of materials can be obtained from the manufacturer or supplier of the noncombustible material. If the hearth extension is to be covered, use noncombustible material such as tile, slate, brick, concrete, metal, glass, marble, stone, etc. Provide a means to prevent the hearth extension from shifting and seal gap between the fireplace frame and hearth extension with a non- combustible material (see Figure 3).

WARNING: Hearth extension

is to be installed only as shown

in Figure 3.

Seal Gap

Fireplace Front

MANTELS

 

 

 

 

 

A mantel may be installed if desired (see Figure

4). Woodwork such as wood trims, mantels or

any other combustible material projecting from

the front face must not be placed within 12" of

the fireplace opening. Combustible materials

above 12"

and

projecting more than 1

1

/2" from

 

the fireplace must not be placed less than 15"

from the top opening of the fireplace (NFPA STD

211, Sec. 7-3.3.3).

 

 

 

Mantels or any other combustible material also

may come up to the side edge of the black metal

face of the fireplace just as long as the projection

from the front face fall within the limit shown in

Figure 4.

 

 

 

 

 

 

 

 

 

 

Combustible

 

12

1

/4" Ref.

Material

 

 

 

 

 

 

Safe

6"

 

 

 

Zone for

Ref.

33°

 

Projection of

 

 

Combustible

 

 

 

 

 

3" Nom.

Materials

 

 

 

 

15" Min.

1

 

 

 

 

1

/2" Max.

 

 

 

12"

Min.

Upper

 

Section of

 

 

 

 

 

 

 

 

Fireplace

 

Fireplace

 

 

 

 

Opening

 

 

 

Top View of Fireplace

 

 

 

 

 

 

 

FIREBOX

 

 

8.0"

 

 

 

 

 

 

Ember Protector

Fireplace Front

Raised Hearth

Ember Protector

Fireplace Front

Elevated

Hearth

Extension

Seal Gap

 

2" Max.

SAFE ZONE

3.0"

33°

 

Min. to

 

Perpendicular

Combustible

Side Wall

Material Must

12"

Not Overlap

 

 

Front Face

Figure 4 - Mantel Clearances to

Combustible Material

Ember Protector

Figure 3 - Hearth Extension

111099-01C

www.desatech.com

5

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Desa VS42H(1), S42RH, VS42(1) installation manual Hearth Extension, Mantels
Page 4 Page 6

S42RH, S42R, VS42(1), VS42H(1), S42H specifications

Desa VS42(1), S42RH, VS42H(1), S42H, and S42R are part of a comprehensive line of residential heating appliances designed to offer efficient and effective heating solutions for various living spaces. These models are known for their unique features, advanced technologies, and characteristics that set them apart in the market of home heating.

The Desa VS42(1) model boasts a sleek design with an emphasis on modern aesthetics while maintaining functional excellence. It features advanced thermostatic controls that allow users to maintain their desired temperature effortlessly. The efficient combustion system maximizes fuel usage, ensuring a higher output of heat with minimal emissions, thereby promoting an eco-friendly approach to home heating.

Similarly, the S42RH model is equipped with cutting-edge safety features, including automatic shut-off systems that prevent overheating and potential accidents. Its innovative design also allows for easy installation, making it a popular choice for homeowners looking to upgrade their heating systems. The versatile design is suitable for various home styles, seamlessly fitting into traditional or contemporary settings.

The VS42H(1) variant stands out due to its compatibility with smart home systems, allowing users to control the heating remotely through smartphone applications. This level of convenience is enhanced by its energy-efficient operation, which reduces heating costs while ensuring a comfortable living environment. Furthermore, this model incorporates high-quality insulation materials that improve heat retention for longer periods.

In contrast, the S42H model emphasizes user-friendly operation without compromising performance. Its straightforward controls and efficient heating technology make it an ideal choice for families. The model also offers multiple heating settings to cater to different environments and user preferences, providing customizable comfort.

Finally, the S42R offers remarkable adaptability, featuring a flexible venting system that permits installation in various locations within the home. This versatility is complemented by its robust build quality that ensures durability and longevity. The combination of these characteristics makes the S42R an attractive choice for homeowners seeking reliability and performance.

In summary, the Desa VS42(1), S42RH, VS42H(1), S42H, and S42R models present a range of features aimed at enhancing user experience while prioritizing energy efficiency and safety. These appliances are designed to meet the diverse needs of consumers, ensuring that comfort and functionality go hand in hand.
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