Whitfield Advantage II-T C FS, Installating And Operation Manual

CARE AND OPERATION 

PAGE 24 

Continued from last page… 
 
Any adjustments for combustion air should be made at 
the damper by varying the spacing between the side of 
the stove and the inside of the damper set collar.  The 
factory setting on the damper, as noted above, should 
correspond with the model you have. 
 
If the fire goes out on the #1 setting, you will want to de-
crease the combustion airflow.  Loosen the set collar and 
push the damper in by 1/4” intervals.  Tighten the collar 
at its new position (2 1/2” – 2 3/4”). 
 
If the fuel is building up in the UltraGrate

TM

 at the higher 

heat output settings, you will want to increase the 
amount of available combustion air.  Loosen the set col-
lar on the damper rod and pull the damper out.  Do this 
1/4” at a time.  Tighten the collar at its new position 
(1 3/4” – 2”). 
 
After making any adjustment to the damper set collar, 
pull the damper rod out fully and re-check the dimension 
between the stove side panel and the inside of the set 
collar. 
 

NOTE:  If the proper flame cannot be achieved with 
the damper control, adjustment of the trim controls 
may be necessary.  See 

Control Board Operation

 on 

Page 21 for information

. 

DAMPER ADJUSTMENT GUIDELINE 
Lack of Combustion Air: 

By opening the damper, this 

will increase combustion air delivery. Symptoms of insuf-
ficient combustion air include; unburned fuel, lazy smoky 
or red / orange flame, excessive ash or soot, excessive 
buildup on glass.  

Contributing factors: 

• 

High Altitude – Lack of oxygen 

• 

Restrictive Venting (elbows, horizontal runs, 
cold external chimneys, etc.). 

• 

Dirty / Poor Quality Fuel. 

Note: Excessive amounts of fly ash built-up in the Ultra-
Grate

TM

, clinkers in the UltraGrate

TM 

or leakage of air (if 

the UltraGrate

TM

 is not properly seated) will starve the 

fire for air. See 

Routine Maintenance

, on pages 26 

through 30 for information on cleaning the stove.  
 

Excessive Combustion Air: 

By closing the damper, this 

will reduce combustion air delivery. Symptoms of exces-
sive air include; fuel burns too quickly (results in smoking 
or smoldering pellets), white to yellow flame, etc. If the 
damper is open too much, the burning pellets will lift off 
the UltraGrate

TM

 and fly up into the air much like popping 

corn does. 

Contributing 

factor: 

• 

Venting system providing excessive draft. 

Correct

Combustion Air / Proper Burn Characteris-

tics: 

When the damper is correctly set, the burning pel-

lets should move (wiggle) around slightly and the flame 
should be bright yellow.  

 
AUTOMATIC SAFETY FEATURES  
Power Outage: 

During a power outage, the stove will shut down safely. It 
will not automatically restart when power is resumed un-
less the exhaust temperature is still hot enough.  A small 
amount of smoke may leak from the top of the window 
glass, the hopper and from the exhaust air intake, if the 
stove is vented horizontally with no vertical pipe. This will 
not persist for more than 3 to 5 minutes and will not be a 
safety hazard.  

It may set off your smoke alarm. 

To re-light the stove, follow the normal procedure for 
starting your stove. 
 
Note: If the area in which you live is prone to frequent 
power outages, it is recommended that a minimum of 8 
feet (2 1/2 meters) of vertical vent pipe be included in a 
freestanding installation to induce a natural draft in the 
event of a power failure. 
 

Overheating: 

A high temperature switch will automatically shut down 
the stove if it overheats. The stove will need to be manu-
ally re-lit.  Allow up to 45 minutes cooling time before re-
lighting. Keep enough convection air (room air blower) 
going through stove to keep it cooling properly, this will 
ensure long life of the stove. If the overheating continues, 
contact your authorized Lennox Hearth Products dealer 
for more information. 
 

www.PelletKing.com