Immersion Heaters Quiz

What is a requirement for all immersion heaters installed today?

• A reset button or cut-out device

• A digital display

• A remote control

• A built-in timer

What is the power rating of domestic immersion heaters?

• 3kW

• 5kW

• 2kW

• 4kW

Which of the following lengths is NOT mentioned as available for immersion heaters?

• 20"

• 11"

• 18"

• 36"

Diagram showing the structure and components of an immersion heater system.

• Diagram showing the structure and components of a solar panel system.

• Diagram showing the structure and components of a wind turbine system.

• Diagram showing the structure and components of a geothermal heating system.

• Diagram showing the structure and components of an immersion heater system.

What are open vented combination units?

• Pre-plumbed units with a cylinder and cold water storage cistern joined together

• Units that require separate installation of cylinder and cistern

• Systems that are only used in commercial buildings

• Units that provide high head pressure

What is a disadvantage of open vented combination units?

• Lack of head pressure

• Complex installation process

• High maintenance cost

• Limited availability

Where are open vented combination units sometimes found?

• Flats

• Skyscrapers

• Industrial plants

• Detached houses

What is the function of the DHW cylinder in the diagram?

• To store cold water

• To heat domestic hot water

• To supply electricity

• To cool the water

Which component in the diagram is responsible for the primary flow of water?

• Hot distribution pipe

• Primary return

• Primary flow

• Cold feed

What is the purpose of the coil type heat exchanger in the DHW system?

• To cool the water

• To exchange heat between fluids

• To store hot water

• To provide ventilation