B. Constructing the Appliance Chase

A chase is a vertical box-like structure built to enclose the gas appliance and/or its vent system. In cooler climates the vent should be enclosed inside the chase.

NOTICE: Treatment of ceiling firestops and wall shield firestops and construction of the chase may vary with the type of building. These instructions are not substitutes for the requirements of local building codes. Therefore, you MUST check local building codes to determine the requirements to these steps.

Chases should be constructed in the manner of all out- side walls of the home to prevent cold air drafting prob- lems. The chase should not break the outside building envelope in any manner.

Walls, ceiling, base plate and cantilever floor of the chase should be insulated. Vapor and air infiltration barriers should be installed in the chase as per regional codes for the rest of the home. Additionally, in regions where cold air infiltration may be an issue, the inside surfaces may be sheetrocked and taped for maximum air tightness.

To further prevent drafts, the wall shield and ceiling fire- stops should be caulked with caulk with a minimum of

300ºF continuous exposure rating to seal gaps. Gas line holes and other openings should be caulked with caulk with a minimum of 300ºF continuous exposure rating or stuffed with unfaced insulation. If the appliance is being installed on a cement surface, a layer of plywood may be placed underneath to prevent conducting cold up into the room.

C. Clearances

NOTICE: Install appliance on hard metal or wood surfaces extending full width and depth. DO NOT install directly on carpeting, vinyl, tile or any combustible material other than wood.

WARNING! Risk of Fire! Maintain specified air space clearances to appliance and vent pipe:

•Insulation and other materials must be secured to prevent accidental contact.

•The chase must be properly blocked to prevent blown insulation or other combustibles from entering and making contact with fireplace or chimney.

•Failure to maintain airspace may cause overheating and a fire.

A

F

B

G

J

C I

D

E

(FROM APPLIANCE OPENING TO CEILING)

H

 

 

 

 

* MINIMUM FRAMING DIMENSIONS

 

 

 

 

 

A

B

C

D

E

F

G

H

I

J

 

 

Rough

Rough

Rough

Rough

Clearance

Combustible

Combustible

Behind

Sides of

Front of

 

 

Opening

Opening

Opening

Opening

 

 

to Ceiling

Floor

Flooring

Appliance

Appliance

Appliance

 

 

(Vent Pipe)

(Height)

(Depth)

(Width)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRUE-36

Inches

10

56

24

59-1/2

52

0

 

1

1

36

 

 

 

 

 

 

 

 

 

 

 

Millimeters

254

1422

610

1511

1321

0

 

25

25

914

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRUE-42

Inches

10

61

24

65-9/16

52

0

See Sec-

1

1

36

 

 

 

 

 

 

 

 

 

 

Millimeters

254

1549

610

1665

1321

0

tion 5.E.

25

25

914

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRUE-50

Inches

10

65

24

73-9/16

52

0

 

1

1

36

 

 

 

 

 

 

 

 

 

 

 

Millimeters

254

1651

610

1868

1321

0

 

25

25

914

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Adjust framing dimensions for interior sheathing (such as sheetrock)

Figure 5.2 Clearances to Combustibles

20

Heat & Glo • TRUE-36, TRUE-42, TRUE-50 • 2282-900 Rev. D • 8/12

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Hearth and Home Technologies TRUE-50, TRUE-42 Constructing the Appliance Chase, Clearances, Minimum Framing Dimensions
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TRUE-36, TRUE-50, TRUE-42 specifications

Hearth and Home Technologies offers a range of innovative fireplaces, and the TRUE series stands out for its exceptional design and advanced technology. The TRUE-42, TRUE-50, and TRUE-36 models are popular choices among homeowners looking for contemporary aesthetics combined with efficient heating solutions.

The TRUE-42 fireplace is designed for modern living spaces, offering a clear view of the flames from multiple angles. Its sleek, linear design allows it to be seamlessly incorporated into any room. One of its main features is the expansive glass front that enhances the visuals of the fire while promoting maximum heat output. With an input range of 27,000 to 50,000 BTUs, this model excels at warming larger spaces efficiently. Additionally, it includes adjustable flame height and various log or ember bed options, allowing users to customize their fire experience.

The TRUE-50 model takes the design and performance up a notch, providing an even larger viewing area with its 50-inch glass front. This fireplace is perfect for grand living rooms or commercial spaces, where ambiance and style are a priority. It features innovative technology such as auto ignition and an optional remote control, giving homeowners the flexibility to control the fire with ease. The TRUE-50 also allows for venting options, making it adaptable to a range of installation requirements, thus enhancing its versatility in different home settings.

Lastly, the TRUE-36 serves as a more compact option without sacrificing aesthetic appeal. It delivers the same stunning flame effect and high-efficiency heating as its larger counterparts, making it suitable for smaller rooms or cozy spaces. The TRUE-36 is designed to create a focal point in any room, featuring modern controls and customizable flame options.

All TRUE fireplaces boast advanced technologies like the Intellifire ignition system, which enhances safety and convenience by ensuring reliable lighting every time. Energy efficiency is a priority as well, with these models meeting stringent environmental standards, thereby providing heat without excessive emissions.

In summary, Hearth and Home Technologies’ TRUE series, including the TRUE-42, TRUE-50, and TRUE-36, offers cutting-edge design and performance. These models exemplify modern fireplace innovation, blending style, efficiency, and technological advancement, making them an excellent choice for any home or commercial space looking to enhance its ambiance.
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