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13
Masonry or Prefabricated Chimney
Conversion
The GF 400 DV Sebago is approved for use with listed
chimney conversion kits from any of the manufacturers
listed on page 8. These kits are for use in a masonry
chimney or a prefabricated solid fuel listed chimney. See
fig. 15.
These installation requirements must be followed:
1. Use the guidelines for Coaxial Vent Termination
appropriate for your gas type on pages 11 - 12.
2. In masonry chimney, a fireclay liner or listed steel
liner, must be present the entire length of the chim-
ney.
3. Chimney height should not exceed 35 ft. (10.66 m).
4. The liner must have an inside dimension of 6” round
or greater.
5. Prefabricated chimneys must be UL 103 or ULC S-629
listed and have a minimum INSIDE diameter of 6
inches, (150 mm). Prefabricated chimneys must be
listed for the specific Chimney Conversion Kit you
choose.
Figure 15. Vent System through a masonry chimney using a
chimney conversion kit. May also be used in listed
prefabricated chimneys. Drawing is for illustrative purposes
only - DO NOT VENT TWO APPLIANCES INTO A SINGLE
CHIMNEY.
Vertical
Termination
Cap
Cap Adaptor-
included in
#934 Kit
Support/Wall
Thimble Cover
Exhaust
Gas
Intake Air
Use standard
vent pipe from
stove to
thimble from
the same
manufacturer
4” Flex Pipe
not included
in kit
IMPORTANT NOTICE
THE USE OF AN EXISTING CHIMNEY
AS AN AIR INTAKE IS NOT COVERED
UNDER THE ANSI Z21.88-1999-CSA
2.33-M99 TEST METHODS AND RE-
SULTING ITS/WHI PRODUCT CERTIFI-
CATION. THE CODE AUTHORITY
HAVING JURISDICTION MUST BE
CONSULTED PRIOR TO PROCEEDING
WITH THIS INSTALLATION METHOD.