Owner`s manual
29007-0-0911 Page 5
HowtoStarttheHeater–OneBurnerOnly
1. Turn either the Rear or Front burner switch to the “ON” posi-
tion. If the Rear burner is powered, the Rear display light
will be illuminated. If the Front burner is powered, the Front
display light will be illuminated.
Rearburneronly
Frontburneronly
2. The light for the Exhaust Fan will illuminate as the heater pre-
pares to ignite.
3. In 15 to 20 seconds, the appropriate igniter will glow red, and
the burner will light.
4. The Blower light will become illuminated after 3 to 5 minutes.
The blower will automatically advance to a higher speed if it is
needed. The blower speed will be indicated on front control
panel.
HowtoChangeBurners–SwitchingBurners
If the heater is being operated on one burner, and it is desired to
change and operate the other burner, rst turn the other burner
“ON” before turning the original burner “OFF”.
The table below outlines the input rate of both front and rear burn-
ers.
Model
Front Burner
Input(BTUH)
Rear Burner
Input(BTUH)
Bay Window Mantis 9,000 19,000
Fireplace Mantis 13,000 15,000
Example: If the front burner is operating and then you would like
more heat in the room and would like to change to the rear burner,
rst turn the rear burner switch “ON”, wait a second, then turn the
front burner switch “OFF”. If this sequence is not followed, the
control in the heater will lock up, and will need to be reset.
HowtoResettheHeater
If for any reason the heater needs to be reset, remove the front
louvered cover from the heater, then turn the Main Power Switch
to the “OFF” position. The heater must remain off for 5 minutes.
Note: If the blower is running, allow it to complete its cycle and
shut down automatically before turning the main power switch to
the “OFF” position. This will ensure that the heater has been prop-
erly cooled down.
After waiting 5 minutes, the Main Power Switch can be moved to
the “ON” position. Burner operation will resume.
HumidierOperation
The Mantis Power-Vent High-Efciency Fireplace has an auto-
matic humidier designed into the heater. As the heater operates,
condensate is created and collected inside the heater. The con-
densate is then transferred to a pan where it evaporates into the
air stream. The humidier does not operate with every cycle.
While the condensate is being transferred to the pan, it is normal
to hear a slight hissing sound. The Humidier light will be illumi-
nated while the condensate is being transferred.