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Vermont castings ewf30, Mantels, Side wall protection – Vermont Casting EWF30 User Manual

Page 15: Hearth installation

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15

Vermont Castings EWF30

20008662

FP531

Fireplace surround detail

1/29/99 djt

Must be sealed with

noncombustible material

Mantel Shelf

Side View

Finished Wall

2 x 4 Stud

Standoff

Cast Front

See mantel drawing for

shelf-to-grille dimension

1” (25mm)

Fireplace

Front (Steel)

2 x 4 Stud

FP1200

Fig. 20 Finishing materials placement.

Brick Ledge

Noncombustible Finish Mate-

rial Only in this Area

Top View

Mantels

The height that a combustible mantel is fitted above the
fireplace is dependent on the depth of the mantel. This
also applies to the distance between the mantel leg (if
fitted) and the fireplace.
For the correct mounting heights and widths, refer to
Figures 21 and 22. When using paint or lacquer to finish
the mantel, such paint or lacquer must be heat resistant
to prevent discoloration.

Side Wall Protection

Adjacent combustible side walls that are within mini-
mum dimensions shown in Figure 24 of the fireplace
opening must be protected with CFM Corporation Wall
Shield Model SP40 or a specifically built wall shield
described in Figure 19.
The special wall shield design described in Figure 19 is
an alternate method of adding protection to side walls
and can be used in place of the SP40 with the same
wall clearances specified for the SP40. Rt must =1.85
minimum.
Examples of wall shield insulation:

1. Manville - CERAFORM 126, K=.27,
1/2 inches thick
2. EH2416, K = .458,
1 inch thick required.

Hearth Installation

A hearth extension is required to protect a combustible
floor in front of the fireplace. Refer to Figure 25 for mini-
mum dimensions and mounting detail.
NOTE: Hearth Extension must not cover the air
inlet opening of a fireplace.
The hearth extension described in Figure 25 must be a
durable noncombustible material with a minimum (total)
Rt value of 1.09; see Figure 23 for examples. The over-
all height (above a combustible floor), depth and width
must be as indicated, with the extension centered to the
fireplace opening.

FP1398

Fig. 21 Combustible mantel minimum opening.

FP1398

wood mantels

8/18/03 djt

6"

(159mm)

Min.

12"

(305mm)

Min.

1���"

(38mm)

12"

(305mm)

Max.

Combustiible

Mantel and

Trim

Finished Wall

Header

Standoff

Noncombustible

Material

Brick Ledge

GrilleOpening

Fireplace

Front

MA81

Fig. 22 Combustible mantel clearances.

MA81

rev. 8/5/97

*

1���"

Ref.

**

Combustible materials

are permitted within a

shaded area shown in

Figure 25 titled

Minimum Wall

Clearances

* 12” (305 mm) from top of grille opening.
** 6” (152 mm) from top of grille opening.