With the chimney draught settings correctly set the oil flow rates need to be checked. This is normally checked by the
visual size of the flame it is not usual to disconnect the feed pipe to the burner and do a timed flow test.
Flow Rates
Model
Min cc/m
Max cc/m
Belfort
3
9.7
Savoy
4
16
Burgundy
4
21
No assessment of flame size or pattern should be made until the stove and flue have reached full operating
temperature and the correct negative pressure (chimney draught) within the stove has been achieved.
All adjustments to the oil metering valve should be followed with a period of undisturbed running before making any
assessment and several minutes should be allowed for the flue draft to stabilise after adjusting the flue stabilizer.
Low Fire (Minimum flame size)
Flue draught set at the requirement for low fire No 1 setting e,g.
0.04”wg
The catalyser body will glow brightly, with the only visible flames being horizontal blue translucent jets dancing
between the catalyser and the holes in the burner cylinder wall. No flames from the top row of holes.
The following flame size diagrams are to assist with correct adjustments.
If the flame size is larger than this decrease low fire flow rate, if the flame size is smaller increase the oil flow rate.
(See adjusting screw position on the oil valve in previous pictures).
Do not adjust the low fire screw more than 1/4 turn at a time before allowing burner to settle. Check the flame pattern
again and adjust again in the same manner if required.
