Harman Stove Company HB 38 DV - Manual (Page 5)

When the blower is off the air
gate is in the open position
which allows air to flow freely
through the air chamber and
up through the heat exchanger.
Air Gate Open
Air Gate Closed
When the blower is turned on,
the air pressure from the
blower forces the air gate to
seal the air chamber. This
forces all the air from the
blower to travel through the
heat exchanger producing
two to three times more air
than other b rands of gas
fireplaces.
Blower Off
Blower On
Air Gate Blower System
Typically in gas fireplaces the blower (which
is usually an option) is placed to blow air up the
back of the firebox without any method to keep the
air pressure from being lost. This method allows air
to flow freely around the blower when the blower is
off but gives up a large percentage of the blowers
efficiency when it is on.
The Air Gate Blower System gives you the best
of both worlds.
200% To 300%
More Air
IMPORTANT FEATURE
5