How are drafts measured?
Similarly, you may ask, what is a draft test?
Performing a Draft Test. Draft is required to remove the flue gasses from the heat exchanger or draft hood on all atmospheric and draft induced appliances, and most power burner equipped appliances. All appliances requiring draft are required to have and maintain draft during operation.
Similarly, how does a draft regulator work? Draft regulators or barometric dampers are devices used to regulate the draft on oil-fired furnaces, boilers, and water heaters. You adjust the weight to control the amount of the opening of this damper which in turn controls the amount of excess air that can enter the flue and chimney when the oil burner is operating.
Also to know, what is positive and negative draft?
A positive draft means the angle of the face, with respect to the direction of pull, is more than the reference angle. A negative draft means the angle of the face, with respect to the direction of the pull, is less than the negative reference angle.
What is a draft gauge used for?
draft gage. [′draft ‚gāj] (engineering) A modified U-tube manometer used to measure draft of low gas heads, such as draft pressure in a furnace, or small differential pressures, for example, less than 2 inches (5 centimeters) of water.