Monessen Hearth BWBC400I, BWB400I manual Joist Insulate Same

INSTALLATION PREPARATION

Survey the planned location for the fireplace for overhead plumbing or electrical wires, etc., that might complicate the installation or endanger persons installing or cleaning the chimney. Avoid a location where the chimney cap will be near abrupt changes in the roof shape, nearby wall or embankments, under or near trees or above the roof of a single story wing of a two story building as shown by Figure 8. All these conditions can cause turbulence or pressure conditions that can cause poor chimney draft and smoke spillage from the fireplace opening. Elbows may be used to offset the chimney to avoid obstructions or to locate the chimney cap in a preferred location. Refer to the sections of this manual pertaining to chimney offsets for instructions on proper elbow use. Poor installation or location of the chimney cap and/or components can cause wind blown rain to enter the chimney.

Be sure the selected location will allow a 14-1/2" square combustible material-free space for the chimney to pass through. If the chimney is to pass through living or storage spaces, be sure there is adequate space to enclose the chimney to avoid personal contact with, or damage to, the chimney. If the fireplace is to be installed on an outside wall, the surrounding walls (chase) should be constructed and insulated as shown by Figure 6. Failure to insulate the fireplace from outside temperatures will cause heat loss through and around the fireplace.

FIGURE 6	JOIST INSULATE SAME
	AS CEILING

	SOLID
SEE	SURFACE
NOTES

SF FIRESTOP

SPACER

NOTES:
1. MODEL SF FIRESTOP	8' 0"
SPACER MUST BE USED.	LEVEL
2. LOCAL CODES MAY NOT REQUIRE
FIRESTOPPING AT THE CEILING LEVEL
FOR CHASE INSTALLATIONS, BUT IT IS
RECOMMENDED FOR SAFETY AND
REDUCING HEAT LOSS.
3. DO NOT INSULATE THE CHASE WITH
BLOWN OR FILL TYPE INSULATION.
INSULATION SHOULD ONLY CONTACT
THE FIREPLACE AT POINTS WHERE
THE FIREPLACE WOULD NORMALLY BE
CONTACTED BY FRAMING MATERIALS.

SCL TELESCOPING CHIMNEY CAP

FLAT CHASE FLASHING

R3672 (36" x 72")

OR

R4884 (48" x 84")

CHIMNEY SECTIONS "S" SERIES

INSULATE OUTSIDE

WALLS OF CHASE

SOLID CONTINUOUS

SURFACE

INSULATION (THERMAL BARRIERS)

OUTSIDE BASE

8

53D9032. Rev 1 03/03