Table of Contents
Advertisement
• Your appliance operated with natural draft, created by the ascension of combustion gases in the chimney.
This movement creates a suction effect in the appliance and forces ambient air to go in the burner by the
holes in its surround. These orifices let air in for combustion.
• For the appliance to function properly, it is essential to check the quality of the draft using a draft gauge.
The draft is usually measured in inches of water column.
• Check the minimum draft required of the appliance on page 1. The draft mentioned has to be reached
rapidly at a minimum settling (position #1).
• Depending on the model, the draft can be taken by the orifice on the cooking surface. The measure can
also be taken by the orifice on the draft regulator usually plugged by a rubber cap. The orifice on the
cooking surface is still the best area.
IMPORTANT : ALWAYS MEASURE THE DRAFT 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.
DRAFT REGULATOR
• An excessive draft is as bad as a low one.
• The regulator controls the draft when it is
excessive (in high winds for example).
• If the draft exceeds 0.08 in of water column, you
will have to adjust the regulator.
To adjust the draft you have to screw or unscrew the
counterweight on the regulator. Opened regulator:
lowers the draft. Closed regulator: increases the draft
THE ONLY RIGHT WAY OF MEASURING THE DRAFT IS TO USE A DRAFT GAUGE THAT GIVES A
READING IN INCHES OF WATER COLUMN. ANY OTHER METHOD (CANDLE, MATCHES, ETC.) ARE
UNRELIABLE.
INSTALLATION OF YOUR APPLIANCE SHALL 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.
ADJUSTING THE DRAFT
Figure 12:
Page 8 of 15
DRAFT REGULATOR
Advertisement
Table of Contents
