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The air flow up your chimney that carries the products of combustion (flue gases) out of your house.
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∙ 15y ago
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What is a balanced draft and how is it controlled?
furnace equipped with FD(force draft) and ID(induced draft) fan /blower are called balanced draft system.Fd used to regulate combustion airflow while ID used to regulate furnace pressures type of furnace operate slightly below ATM pressure .
What removes the combustion gases from a balanced draft furnace?
A balanced draft has both ID and FD fans. ID Fan works by pulling the gases through the furnace hence creating the required draft. Where as FD fan pushes the gases into the furnace. Hence in a balanced draft frunace, the ID fan can said to be removing the combustion gases.
What is furnace draft control?
A valve that brings atmospheric air into the furnace exhaust to help expel the exhaust gases.
What is Difference between natural draft and forced draft in modern furnace technology?
natural draft depends on:ambient air conditionsconditions of the leaving gaschimney height
What is the purpose of the draft diverted on a gas furnace?
It protects the Pilot Light from being blown out
What is the purpose of a draft diverter on a gas furnace?
It protects the Pilot Light from being blown out
What is the purpose of the draft diverter on a gas furnace?
It protects the Pilot Light from being blown out
Down draft kiln?
A down draft kiln is a furnace where the flue (exit for burned gases) is the located near bottom of the fire box. This type of furnace requires a tall chimney to produce enough draft (or air flow) and typically produces even heat distribution through out the fire box.
Why induced draft fan operate first instead of a forced draft fan?
The procedure for starting draft plant (fans) in a boiler is to start the ID Fan first. Remember that the purpose of the ID Fan is so that the Furnace operates at a slight vacuum. (See Related Link: FD Fan vs ID Fan.) Any casing or furnace leaks then allow air to leak in, rather than allowing air with pulverised fuel and fly ask to leak out.
What is draft control?
A valve that brings atmospheric air into the furnace exhaust to help expel the exhaust gases.
Forced draft fan vs induced draft fan?
In a balanced draft boiler, you actually have both: forced draft (FD) fans supplying air to the furnace, and induced draft (ID) fans removing flue gas. Typically, the FD fans control airflow, while ID Fans control furnace pressure to slightly below atmospheric pressure. In general though, the choice between forced draft and induced draft is based on how "tight" the system is - if you have leaks, it is better to use ID, as FD will cause product loss.
Can a down draft furnace be mounted on its side or back?
I'm assuming that by "down draft furnace" you mean a counterflow or downflow furnace. This furnace takes its "cold air return" at the top, and blows the warm air out the bottom (typically, into ductwork that runs under the floor).Older downflow furnaces were dedicated to that configuration, and could not be mounted in other positions.Nowadays, most furnace manufacturers make "multi-poise" furnaces. They can be mounted in downflow, upflow, or side-flow positions, when they are installed according to the manufacturer's certified instructions.The HVAC Veteran
