The  TL300  offers  a  unique 
stainless  steel  cooking  grill 
that  can  easily  be  taken  in 
and out of the stove for easy 
cleaning. 
   
  
The TL300 is designed to accommodate the use 
of outside air introduced directly to the stove.  The 
opening is located at the back of the stove pedestal 
base. You'll notice there is a rounded hole with the 
etching of a larger hole. The size needed depends 
on the length of pipe being used.(see below)
Check with your local building inspector to nd out 
requirements determining if outside air is needed 
when  installing  the  TL300  in  your  area.  Some 
signs to watch for that indicate a possible need for 
outside air:  Poor performance of other heaters or 
of the TL300,  including smoke roll-out  and  odor; 
the disappearance of the same symptoms when a 
window is opened near the stove; and condensation 
on windows in the winter.  Modern homes with tight 
windows and doors, vapor barriers, and particularly 
with exhaust systems are the most likely to require 
outside air.
An outside air duct less than 5' (1525 mm) long 
may  be  3"  [80mm]  in  diameter,  and  be  made  of 
masonry tile, 26 gauge (0.019) galvanized steel, or 
other approved noncombustible material; it should 
have  a  1"  (25  mm)  clearance  to  combustibles.  
Systems longer than 5' (1525 mm), or containing 
more  than  two  elbows,  should  have  a  4"  (100 
mm) diameter duct to provide an adequate ow of 
combustion air. The air duct must terminate outside 
the dwelling and be screened to keep out debris, 
birds or animals.
The optional 105 cfm blower helps 
circulate  heated  air  throughout 
the  home.  It  installs  easily  onto 
the back of the stove, using the 
included mounting plate.
The brushed stainless steel 
trim kit adds elegance to the 
TL300. The kit includes the 
door frame, ash lip trim, and 
tile frame. 
Your  Harman  TL300  can  be  burned  like  a  replace 
with the optional Cozy Screen. The Cozy Screen can 
be used with either the door in place or with the door 
removed from the stove. When using the Cozy Screen, 
the damper bypass must stay in the open position or 
smoke spillage will occur.  
The Cozy Screen can be used from the start of a re 
or can be used with an existing one. When starting a 
re with the Cozy Screen, smoke spillage may occur 
until it develops a draft strong enough to pull all smoke 
back into the ue.