Supporting floor systems installation

Continued

Model

A

MM33

32 ¾"

MM39

38 ¾"

MM44

43 ¾"

MM49

48 ¾"

MM63

62 ¾"

A

4"

10"

Figure 29 - Anchorage Dimensions

 

 

 

Figure 30 - Hardware

 

 

 

 

 

 

 

 

2” min

Fireplace

 

EXAMPLE ONLY

 

 

 

 

 

 

clearance

outline

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10”

SECTION VIEW

ROTATED 90CW

Figure 31 - Typical Anchorage Layout

combustible floor Installation

8" Metal Base (MMB63)

 

 

 

Ember protector strips:

The Metal Base (MMB63) ensures the minimum

Ember protector strips (included with Metal Base Kit)

8" clearance above combustible flooring is main-

are required between the front of the Fireplace Hearth

tained with Grand Meridian Model MM63.

and Hearth Extension. A minimum thickness of 26

A layer of 1/2" minimum Cement Board (Not Includ-

gauge metal strip at least 4" wide can be used. The

ed) is required on the top and mid section below as

length needs to extend 2 inches beyond each side

shown in Figure 32, page 21. The required sizes are

of the fireplace opening. If two strips are used, make

shown in the table below.

 

 

 

 

sure they overlap at least two inches in the middle.

 

 

 

 

 

 

 

 

The strip is placed about 2" into the underside of the

 

1/2" Thick Cement Board Dimensions

 

platform at the front (Figure 10, page 10).

 

Model

A1

 

A2

B1

B2

 

Note: When using an on-site constructed hearth ex-

 

MM63

67"

 

28"

60"

23"

 

 

 

 

tension, you may use a sand-cement grout between

 

 

 

 

 

 

 

 

IMPORTANT: Remember to tighten up nuts below

the hearth and extension instead.

the floor after fireplace installation in order to take up

 

any slack in the threads.

 

 

 

 

 

20

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