Archgard 10-1800P - Manual (Page 22)

Chalet 1800 22
CHASE ENCLOSURE
If the chimney runs up the outside of the house, for best performance, it should be enclosed in a chase. It is
best to locate the chase away from any overhead obstructions. For best results, the chase should be con-
structed in such a way that it is part of building envelope.
It should be well insulated between the footings and the floor of the home to prevent heat loss. Insulate the
chase in order to keep the chimney (flue gases) warmer. This will work to increase draft, reduce condensa-
tion and creosote formation. Include an access door by the chimney “Tee Cap” for chimney maintenance.
MASONRY CHIMNEY
Ensure that a masonry chimney meets the minimum standards
of the National Fire Protection Association (NFPA) Standard 211
in the U.S.A. In Canada ensure that the masonry chimney
meets the minimum requirements of National or Provincial Build-
ing and Fire Codes. It must have at least a 5/8" (16mm) fire
clay liner or a listed chimney liner system. Make sure there are
no cracks, loose mortar or other signs of deterioration and
blockage. It is best to have the chimney inspected by a profes-
sional, and be sure to have the chimney cleaned before the
stove is installed and operated.
For optimal performance, masonry chimneys used to vent this
appliance should be lined with a 6" (152mm) stainless steel or
cast in place liner. Installations into a clay flue without a
stainless steel or cast in place liner may reduce draw which af-
fects performance, cause the glass to darken and produce ex-
cessive creosote.
When connecting the stove through a combustible wall to a ma-
sonry chimney, special methods are needed. The following
“Systems” are based on the NFPA 211 Standard for the U.S.A.
and it should be referenced for more detail. For Canadian re-
quirements, check the CAN/CSA B365 and your local building
codes.
System A: 12" (304.8 mm) Clearance to Combustible Wall
Member: Using a minimum thickness 3.5" (89 mm) brick and a
5/8" (15.9 mm) minimum wall thickness clay liner, construct a
wall pass-through. The clay liner must conform to ASTM C315
(Standard Specification for Clay Fire Linings) or its equivalent.
Keep a minimum of 12" (304.8 mm) of brick masonry between
the clay liner and wall combustibles. The clay liner shall run
from the brick masonry outer surface to the inner surface of the
chimney flue liner but not past the inner surface. Firmly grout or
cement the clay liner in place to the chimney flue liner.