Factory Built Fireplaces; Oil And Gas Appliances; Chimney Height - ICC EXCEL Installation And Maintenance Instructions Manual

FACTORY BUILT FIREPLACE
When Excel is approved with a factory-built fireplace, the chimney and
fireplace are tested in combination, as a complete system. It is not possible
to include specific installation instructions for each make and model of
fireplace in these instructions, you must follow the instructions included
with the fireplace you are installing.
NOTE: When EXCEL is certified for use on a factory-built fireplace it is
tested without the use of our patented radiation shield tubes (ERSF or
ERST). These radiation shields are not required for any factory-built
fireplace installations, including interior chases.
OIL AND GAZ APPLIANCES
When Excel is used to vent an oil or gas burning appliance, the ERSF or
ERST radiation shield tubes are not required, even where the chimney is
enclosed.

CHIMNEY HEIGHT

The minimum height of chimney required is the same for all support styles
and sizes. The diagram below shows minimum chimney height as required
by code. A quick way to calculate this dimension is to multiply the vertical
rise per 12" of horizontal distance (X in the diagram) by 10 and add 24".
When the chimney is installed within 10' of the peak it must clear the peak
by 24". The minimum chimney height is 3'.
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EXCEL Canada Owner's Manual