Whitfield Profile 20 FS Installation And Operation Manual page 18

INSTALLATION
St an d ard In st allat io n Co n f ig u rat io n s In t o an d Exist in g F irep lace – M o d el: Profile
IMPORTANT- Make sure the chimney and firebox are clean and free of soot and ashes before installation begins. Fail-
ure to do so may result in the transfer of soot into the room by way of the convection fan.
Venting Into an Existing Chimney
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The Profile 30 INS may be installed into a masonry or
factory built fireplace as illustrated on this page. When
installing into a masonry chimney, it is recommended
that the exhaust vent be extended to the top of the
chimney as shown on the following page. However, if
the vent pipe does not extend to the top of the chimney,
the starter pipe must extend a minimum of 18" above
the damper. You must seal the damper area so that the
air / exhaust in the chimney cannot communicate with
the air in the fireplace firebox (this is a positive flue con-
nection. See the following instructions for one method of
sealing flue).
Direct Connection (Positive Flue Connection)
Installation into a Masonry Fireplace without a full reline
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– Profile 30 INS
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The Profile 30 INS does not require a full reline when
installing into a masonry fireplace (however it is recom-
mended to ensure proper drafting of the appliance). As
a minimum the vent connector from the insert must ex-
tend a minimum of 18" above the damper and the
damper area must be sealed to prevent dilution air from
entering the chimney which will affect proper drafting of
appliance.
Note: Sealing the damper area so that the air / exhaust
in the chimney cannot communicate with the air in the
fireplace firebox is called a "Direct Connection" or a
"Positive Flue Connection". See the following instruc-
tions for acceptable methods for sealing chimney throat.
Positive Flue Connection Methods
A qualified installer should evaluate the existing fire-
place to determine the best method for achieving a
positive flue connection between the flue extension
(starter pipe) and the chimney.
method for achieving a positive flue connection in ma-
sonry fireplaces is to secure a seal-off plate in the fire-
place throat using masonry screws. Other acceptable
methods include packing noncombustible material
around vent pipe or using a flue adapter. Whatever
"seal off" method is used must effectively seal the area
to prevent dilution air to enter the chimney.
The most common
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30 INS