30
Conversion for Flexible Co-Axial Venting Into
an Existing Solid Fuel Fireplace
The appliance can be adapted to
fl
exible co-axial
applications using an existing
fi
replace and cavity. The
appliance must not be connected to a chimney
fl
ue
serving a separate solid-fuel burning appliance.
This requires a 590FVK2 kit.
The appliance can be partially or completely inserted
into the cavity as illustrated to the right.
If partially inserted, the appliance must be installed
within a fully framed wall, consistent with a New
Construction application as described in this document.
Firebox zero clearance stando
ff
s supplied with the heater
are not required when installing completely within a non-
combustible cavity
.
Rules for Flex Co-Axial Venting
• Maximum 40 feet vertical pipe
• Minimum 10 feet vertical
• Maximum o
ff
set 8 feet with liners at minimum
45 degrees from horizontal plane
Note:
Flexible co-axial liners must only be installed
within a solid fuel burning
fi
replace and chimney.
Flex Co-Axial installation fully inserted into existing
fi
replace -
Conversion at unit
Engine
Engine
Engine
Engine
5” minimum
bending
radius
590FVK2
co-axial
liner kit
Approved
6-5/8”x4”
co-axial
termination
Terminal
adapter
from
590FVK2
kit
Flex Co-Axial installation partially inserted into existing
fi
replace -
Conversion at unit
Approved
6-5/8”x4”
co-axial
termination
Listed
clearances to
combustible
materials apply
Framed
Wall
5” minimum
bending
radius
590FVK2
co-axial
liner kit
Terminal
adapter
from
590FVK2 kit
Any
fi
nishes
applied around
the
fi
replace’s
opening must
be non-
combustible.
Listed
clearances to
combustible
materials apply
1000CAA
fl
ex co-axial
adapter
1000CAA
fl
ex co-axial
adapter
Venting
Flexible Co-axial
Note:
See 1000CAA and 590FVK2 Installation
Sheets for further details and installation
instructions.
