Hi Duncan,
This is the advice given in the user manual (which can also be downloaded from the product page on our website):
"1) Primary Air - lever is under the door of the stove and controls the primary air allowing air into the stove. You would normally open this
when starting a fire to allow air into the stove for maximum combustion
2) Secondary Air (Airwash) - lever is under the door of the stove and controls the secondary air. This allows a film of air to pass over the glass
which in turn keeps the glass clean. Please note the glass may become visibily darker when the stove is cold.
3) Tertiary Air - lever is under the door of the stove and controls the Tertiary air that further compliments the cleanburn system as a third air
intake. The air is drawn up the back of the stove via a series of chambers and is then injected into the back of the upper fire chamber through
small steel jets. The jets of superhot air ignite the remainder of gases that will only burn off at very high temperatures"
These do not control air flow or draw up the chimney, for which you would probably want a stove pipe with a damper.
Please feel free to contact our sales team via 0161 376 4181 or
[email protected] if you need any assistance regarding this
