Notes to Plan Drawings:

• Temp-Cast fireplaces are "site-built" masonry fireplaces, constructed of refractory parts installed with refractory mortar. When faced with the minimum 4" (100 mm) of solid masonry and connected to an approved chimney system, they conform to building codes across North America.

• Combustion air is fed into the fire from an air slot in the bottom of the door frame. The mason must create this air slot, by slicing the masonry or stepping it out from the core. Combustion air, from the basement or from outside, is supplied via a 15" x 2" (380 mm x 50 mm) air slot in the concrete floor pad. (Care must be taken to ensure that the air slot in the concrete floor pad is not obstructed by the foundation below.)

• The 6" (150 mm) outside air supply can be connected to a fresh air intake where required by code and controlled with an optional electrically operated damper. Note: in the case of See-Through units, an 8" outside air supply is required, and half of the air provided must be directed to the air intake slot of each door frame.

• In a basement installation, where outside air is not required, an optional air supply door will be needed, to feed air in behind the masonry facade and into the air slot in the bottom of the door frame.

• If an open foundation plan is used, as shown in drawings, then a metal "boot" must be custom fabricated on-site to connect the air supply to the air slot formed in the concrete floor pad.

• Recommended minimum clearances from masonry facing to combustible materials are 4" (100 mm) on the sides, 4" (100 mm) at the back, 2" (50 mm) from the chimney and 10" (250 mm) above.

• Chimneys are connected at the base of the fireplace (in the first course) and are supported on the concrete floor pad, or on the footing.

• A minimum expansion gap of approximately 1/4" to 1/2" (6 mm to 12 mm) should be maintained between chimney facing and fireplace facing. (This space can be hidden with a facade that encloses both chimney and fireplace.)

• Chimney connections can be made at either side or rear of a Standard fireplace, or at the rear or on any of the 4 angled facets of a Corner fireplace.

• Plan dimensions are based on a 4" (100 mm) thick masonry facade. (Facade thickness can be increased up to 6" [150 mm] of solid masonry.)

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