5 Fireplace Size Requirements

A. Minimum Fireplace Opening

Minimum fireplace opening requirements for a standard 3/4 inch deep surround are shown in Figure 5.1. For smaller openings, an optional 1-1/2 inch deep surround is available and dimensions are shown in Figure 5.2.

WARNING! Risk of Fire or Burns! Provide adequate clearance around air openings and for service access.

Due to high temperatures, the appliance should be locat- ed out of traffic and away from furniture and draperies.

•The firebrick (refractory), glass doors, screen rails, screen mesh and log grates can be removed from a factory built firebox in order to gain minimum gas insert opening requirements.

•Any smoke shelves, shields and baffles may be removed

from the factory built firebox if attached with mechanical fasteners.

•The metal floor of the solid fuel firebox may be removed to facilitate the installation of the insert. The appliance may not be placed directly on the base of the outer wrap, a 1/4 inch airspace must be provided between the insert and the floor of the outer wrap. Use the levelling legs to raise the insert a minimum of 1/4 inch. The original fireplace may never be returned to solid fuel in this condition. The sidewalls and top structure of the firebox may not be altered with the exception of removable baffles and dampers.

•Cutting of any sheet metal parts of the fireplace in which the gas fireplace insert is to be installed is prohibited, except the floor as tested for and as noted above.

TOP VIEW

A

E

FRONT VIEW

C

D

SIDE VIEW

G

H

B

I

F

MINIMUM FIREPLACE SIZE

 

Location

COSMO-I35

COSMO-I30

 

 

 

 

 

 

Inches

Millimeters

Inches

Millimeters

 

 

 

 

 

 

 

 

A

Rear Width

23-1/2

597

20-1/4

514

 

 

 

 

 

 

B

Front Width

34-5/8

879

30-1/2

775

 

 

 

 

 

 

C

Glass Opening Width

31-9/16

802

27-7/16

697

 

 

 

 

 

 

D

Glass Opening Height

15-11/16

398

12-13/16

325

 

 

 

 

 

 

E

Height-Front

24

610

20-1/2

521

 

 

 

 

 

 

F

Height-Rear

21-1/16

535

17-5/8

448

 

 

 

 

 

 

G**

Unit Depth

16

406

14-3/4

375

 

 

 

 

 

 

H

Venting Depth

10-1/2

267

9-1/2

241

 

 

 

 

 

 

I

Height to Top of

22

559

18-1/4

464

Glass Frame

 

 

 

 

 

*Note: If exhaust collar on insert and fireplace damper do not line up, add 4 inches (102 mm) to minimum fireplace height for bends in vent pipe.

**Unit depth is measured to the back of the surround to give the depth needed for installation.

In addition to these dimensions, also reference Clearances and Mantel Projections (Section 5.B).

Figure 5.1 Fireplace Opening

Heat & Glo • Cosmo-I30, Cosmo-I35 • 2239-900 Rev. H • 1/11

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Heat & Glo LifeStyle COSMO-I30, COSMO-I35 owner manual Fireplace Size Requirements, Minimum Fireplace Opening
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COSMO-I35, COSMO-I30 specifications

The Heat & Glo LifeStyle COSMO-I30 and COSMO-I35 fireplaces are revolutionary additions to modern living spaces, merging outstanding design with advanced technology. Both models are designed to enhance your home's aesthetics while providing efficient heating solutions.

The COSMO-I30 is a 30-inch linear fireplace, while the COSMO-I35 is the larger 35-inch version, allowing homeowners to choose the perfect size to complement their space. These zero-clearance fireplaces can be easily installed in various locations, including existing masonry or prefabricated fireplaces, or even as stand-alone features. This versatility makes them suitable for both remodeling projects and new constructions.

One of the standout features of both models is the innovative design that emphasizes a contemporary look. The clean, linear flame provides a warm ambiance without the clutter of traditional fireplaces. You can enjoy the dancing flames through a sleek front glass panel that maintains a clear view of the fire while enhancing safety.

The COSMO series incorporates advanced technology to ensure optimal performance and energy efficiency. Both models utilize proprietary technology that allows for reliable operation and minimal emissions. The Intellifire ignition system further enhances convenience, providing instant lighting with the push of a button. Homeowners can easily control the flames and heat output, adjusting the ambiance to suit their preferences.

Customizability is another appealing aspect of the COSMO series. The fireplaces come with a range of decorative options, including different styles of media such as glass, stones, or logs, allowing you to tailor the appearance to match your interior design. The ambient lighting feature adds another layer of sophistication, providing a soft glow that can be enjoyed even when the fire isn’t lit.

Both the COSMO-I30 and COSMO-I35 are energy-efficient, boasting high-efficiency ratings that help reduce heating costs without sacrificing comfort. They are designed to function efficiently, effectively distributing heat throughout the room.

With their striking design, innovative technology, and customizable options, the Heat & Glo LifeStyle COSMO-I30 and COSMO-I35 fireplaces create the perfect focal point in any living space, combining functionality with elegance for an unparalleled home experience.
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