Lennox Hearth TRADITIONS T300HT - Manual (Page 6)

PLANNING YOUR INSTALLATION
PAGE 6
COMBUSTIBLE WALL CLEARANCE
WARNING: IT IS VERY IMPORTANT THAT YOU
OBSERVE THE MINIMUM CLEARANCES.
There are listed clearances for your stove which were
determined in a Laboratory test using various "classes"
of stove pipe or chimney. Minimums are first established
for the stove itself and increased based on how much
heat is transferred by each class of pipe.
Do not install the T300HT in an alcove or a confined
space, which would be a room or space with under
a 7' (foot) ceiling, and less than 77" (inches) wide.
UNITED STATES REQUIREMENTS
Residential Reduced Clearance
Use listed double wall chimney connector or Type L vent
pipe to the top of the stove.
CLEARANCES (inches)
A. 10"
D. 6"
B. 24 1/4" * E. 15"
C. 16" F.6 1/2"
RESIDENTIAL STANDARD
Using single wall connector pipe from the stove top up
to the chimney support box.
CLEARANCES (inches)
A. 18”
D. 13 3/4"
B. 24 1/2” * E. 15"
C. 19” F. 9 1/4"
PROTECTED WALL CLEARANCE
Some local codes will allow reduced clearances when the
stove is installed adjacent to a protected wall system. The
variance must be approved by your local building official.
Normally, the protected wall system is defined as a non-
combustible material with a minimum of 1" air space behind.
Check your local building codes or with a qualified installer
(Ref. NFPA 211).
VENTILATION REQUIREMENTS
THE FRESH AIR REQUIREMENTS OF THIS APPLI-
ANCE MUST BE MET WITHIN THE SPACE WHERE
IT WILL BE INSTALLED.
Ventilation is essential when using a solid fuel burning
heater. The combustion process of this heater uses
oxygen from inside the dwelling and it may be neces-
sary to open a window or install a vent to provide make-
up air into a dwelling that is well insulated (modern con-
struction standards have resulted in homes that are
highly energy-efficient and that allow little heat loss and
air transfer). Other appliances in the dwelling also con-
tribute to removing air from the dwelling (i.e. clothes
dryers, exhaust fans, fireplaces, and other fuel burning
appliances). If the available fresh air delivery in the
dwelling is insufficient to support the demands of these
appliances, problems can result (i.e. excessive negative
pressure can develop in the dwelling which will affect
the rate at which this appliance can draft [See Draft Re-
quirements, page 8], and icing can develop in some en-
vironments).
CANADA REQUIREMENTS
Residential Reduced Clearance
Use listed double wall chimney connector or Type L vent
pipe to the top of the stove.
CLEARANCES (centimeters)
A. 35.5
D. 25.5
B. 73.0 *E. 51.0
C. 43.0 *F. 18.5
Residential Standard
Using single wall connector pipe from the stove top up
to the chimney support box.
CLEARANCES (centimeters)
A.
53.5 D. 42.5
B. 73.5 *E. 51.0
C. 55.0 *F. 31.5
Corner Installation
Parallel Installation
* Note: E and F dimensions are measured to side of
stove below the projection of outer top.