15
Purevision LPV Freestanding
Issue 01 02/21
7.4
Air Controls
Keep air controls and inlets/outlets clean and free from ash or debris at all times. Keep direct
outside air inlet grille (if fitted) clean and clear at all times.
Do not leave air control fully open unless monitoring the fire as over firing damage can result
which is not covered by any warranty.
7.4.1
Single Air Control Operation
Primary (behind fuel), secondary (air wash) and tertiary air is automatically controlled by the single
control lever at the bottom, underneath the stove door. The IN position is the OFF position and
closes off combustion air to the firebox. The off position should only be used if absolutely necessary
for very slow burning and when burning wood will cause the glass to become blackened, the
chimney to gradually become tarred and smoke to be emitted from the stove.
Wood burning:
Move the lever fully OUT for maximum air to start or revive a wood fire. Returning
the lever towards the IN position will reduce the air supply progressively to reduce the burn rate.
The nominal burn rate is usually achieved when the stove is fully warmed up (2-3 loads of logs) and
burning dry hardwood logs by having the lever very approximately 18-20mm from the IN position.
This is only a rough guide as flue and fuel conditions will vary the required position. The fire will
automatically be supplied with the correct mix of secondary and tertiary air for complete
combustion. The maximum OUT position conveniently provides a boost of primary air as well to get
new fuel burning quickly in order to minimise smoke. Do not leave on maximum setting unless
monitoring the fire to ensure over firing damage does not occur.
7.4.2
Air Wash
All Fireline
stoves are provided with a sophisticated “air wash” system
to assist in keeping the fire as
visible as possible and reducing cleaning intervals. This secondary air supply to the stove is
controlled through the main single air control. The Clean Air Act air restrictor bracket will
deliberately prevent full closure of this control.
7.4.3
Tertiary Air
This appliance is also fitted with a patented tertiary air combustion system that burns otherwise
uncombusted gasses in the products of combustion thereby improving efficiency, increasing heat
output and decreasing unwanted atmospheric emissions. The Tertiary air supply to the stove is
controlled automatically by the draught in the flue and firebox and the single air control. At certain
stages of burning you will notice “jets” of
swirling flame emerging near the air holes to the rear of
the firebox.
