Adjusting the draught – Drolet DH04200 User Manual

Page 8

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ADJUSTING THE DRAUGHT

• Your stove operated with natural draught, created by the ascension of combustion gases in the

chimney. This movement creates a siphon effect in the stove and forces ambient air to go in the
burner by the holes in its surround. These orifices let air in for combustion.

• For the unit to function properly, it is essential to check the quality of the draught using a draught

gauge. The draught is usually measured in inches of water column.

• Check the minimum draught required of the unit on page 1. The draught mentioned has to be

reached rapidly at a minimum settling (position #1).

• Depending on the model, the draught can be taken by the orifice on the cooking surface. The

measure can also be taken by the orifice on the draught regulator usually plugged by a rubber cap.
The orifice on the cooking surface is still the best area.

IMPORTANT : ALWAYS MEASURE THE DRAUGHT WITH ALL VENTILATION EQUIPMENT
INSTALLED IN THE HOUSE (RANGE HOOD, BATHROOM FAN, AIR EXCHANGER, DRYER, ETC
IN OPERATION.)

ref. : standard CAN/CSA B-139 art. 4.1.5.

DRAUGHT REGULATOR

• An excessive draught is as bad as a draught

to low.

• The regulator controls the draught when it is

excessive (in high winds for exempla).

• If the draught exceeds 0.08 in of water

column, you will have to adjust the regulator.

• To adjust the draught you have to screw or

unscrew the court weight on the regulator.
Regulator open lowers the draught regulator
closed increases the draught.

Figure 12:

DRAUGHT REGULATOR



THE ONLY RIGHT WAY OF MEASURING THE DRAUGHT IS TO USE A DRAUGHT GAUGE THAT
GIVES A READING IN INCHES OF WATER COLUMN. ALL OTHER METHOD (CANDLE,
MATCHES, ETC.) ARE UNRELIABLE.

INSTALLATION OF YOUR STOVE HAS TO BE IN ACCORDANCE WITH CAN/CSA B-139
INSTALLATION CODE FOR OIL-BURNING EQUIPMENT IN CANADA AND STANDARD NFPA 31
NATIONAL FIRE PROTECTION ASSOCIATION STANDARD FOR OIL-BURNING EQUIPMENT IN
THE U.S..

THE INSTALLATION SHALL BE MADE BY A QUALIFIED PERSON MEMBER OF THE
CORPORATION IN FORCE IN YOUR AREA.

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