fuels ppt 3

What is included in the inspection and testing procedures for chimney/flue systems?

• List basic inspection and testing procedures

• Analyze the cost of installation

• Compare different heating systems

• Evaluate the efficiency of solar panels

What are the two operating principles for any chimney or flue system?

• Remove combustion products to the outside and draw in air for combustion

• Increase combustion temperature and decrease air flow

• Reduce air pressure and increase humidity

• Enhance fuel efficiency and minimize heat loss

What principle do chimneys and flue systems work on?

• Hot gases rise, creating a pressure difference called 'up draught' via convection

• Cold air descends, creating a pressure difference called 'down draught' via conduction

• Hot gases fall, creating a pressure difference called 'down draught' via radiation

• Cold air rises, creating a pressure difference called 'up draught' via diffusion

Which of the following is a type of flue design?

• Mechanical draught

• Natural draught

• Electric draught

• Solar draught

What is another type of flue design besides natural draught?

• Open draught

• Room sealed

• Closed draught

• Air sealed

How is air for combustion supplied in an open flue system?

• From a separate tank

• From the room where the appliance is located

• From the ground

• From a closed chamber

What must be supplied to the room and appliance from outside via a vent in an open flue system?

• Water

• Electricity

• Air for combustion

• Gas

What is the purpose of a fan in an open flue with forced draught?

• To create a positive up draught by blowing the products of combustion up the flue.

• To cool down the combustion products before they exit the flue.

• To reduce the noise produced by the combustion process.

• To filter out impurities from the combustion products.

How do room sealed (balanced) flues draw air for combustion?

• From inside the room.

• From a separate air supply.

• Directly from outside.

• From a central heating system.

Where are both the combustion air and products of combustion situated in a room sealed natural draught system?

• Inside the building

• In separate locations outside the building

• In the same position outside the building

• In the basement of the building