Monessen Hearth WC500, WC400 Positioning, Safety Strips Securing the Fireplace, Size of Chimney

The following table gives firestop spacer model num- bers:

	Angle of Chimney at Ceiling
Size of Chimney
	Vertical	30°
8" Flue	SKFS2A	SKFS6A
"SK" Series	14¹⁄₂" x 14¹⁄₂"	14¹⁄₂" x 25¹⁄₂"
	(368mm x 368mm)	(368mm x 648mm)
8" Flue	FS2A	FS6A
"S" Series 3-Wall	17¹⁄₂" x 17¹⁄₂"	17⁷⁄₈" x 29⁵⁄₈"
	(445mm x 445mm)	(454mm x 753mm)

Fig. 13 Ceiling chimney hole sizes necessary for installing firestop spacer.

The inside dimension of the frame must be the same as the hole size selected from Figure 13 in order to provide required the 1¹⁄₂" (38mm) of air space between the outside diameter of the chimney and the edges of the framed ceiling hole.

Positioning, Safety Strips,

Securing the Fireplace

Slide fireplace into position.

Lift the fireplace front slightly and slide the metal safety strips under front bottom edge about 1¹⁄₂" (38mm), al- lowing the remainder to extend in front of firebox. Over- lap strips at least 1/2" (13mm) to provide a positive joint. (Flat safety strips are packed with fireplace.) (Fig. 14)

WR / WC Series Woodburning Fireplace

NOTE: Safety strips are not required over noncom- bustible floors where all supports at the base of the fireplace are noncombustible.

Four (4) nailing flanges are incorporated on each cor- ner of the surround. Bend the nailing flanges out, level the box, then secure it firmly in place by nailing the flanges to the framing members as shown in Figure 15.

Nail Top

Standoffs

Nail Side-

Nailing

Flanges

FP549

Fig. 15 Fasten fireplace in position.

Installing Outside Air Kit

	1/2" Min.
	Overlap
FP557	156O"

Metal Safety Strips

(1, 2 or 3 pieces)

	"Z" Safety
Fire-	Strip
	(not sup-
place
	plied)

Plat-
form	Hearth Ext.

An outside air kit is installed in all WR/WC Series Fire- places. If desired, or if local codes mandate the use of an air kit, then an AK-MST is required to complete the installation (from air kit to the outdoors). If the outside air kit is to be used, the AK-MST MUST be installed BE- FORE the fireplace is enclosed. Refer to the AK-MST instructions for field installation.

Installing the Chimney System

Start by attaching the first chimney section to the collar on top of the fireplace.

Install the pipe as pictured in Figure 16. When you get a good lock, you will hear the pipe clearly snap together. Once sections are snap-locked in place, it is extremely difficult to get them apart. Make sure the

Fig. 14 Safety strip installation.

Safety strips are used to ensure that any combustible materials in front of the fireplace are protected even though a noncombustible hearth extension is required.

If fireplace is to be elevated above the floor, a “Z” shaped metal safety strip must be fabricated and used to protect combustible surfaces in front of the fireplace. This “Z” shaped safety strip is not provided but must be fabricated of metal with each horizontal leg at least 1¹⁄₂" (38mm) wide and equal in length to the metals strips provided with the fireplace.

pipe is firmly snapped and locked together as each pipe section is mounted.

When installing elbows, only outer pipe will snap- lock. Middle pipes simply slide into position. Be sure to always attach straps on upper elbow to a structural framing member. (Fig. 17)

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