Immersion Heaters Quiz

What is a common requirement for all immersion heaters installed today?

• A) A reset button or cut-out device

• B) A digital display

• C) A remote control

• D) A solar panel

What is the power rating for domestic immersion heaters?

• A) 2kW

• B) 3kW

• C) 4kW

• D) 5kW

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

• A) 27 inches

• B) 14 inches

• C) 22 inches

• D) 36 inches

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?

• They are difficult to install

• They provide a lack of head pressure

• They are very expensive

• They require frequent maintenance

Where are open vented combination units sometimes found?

• In large industrial complexes

• In flats

• In outdoor settings

• In skyscrapers

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

• To store cold water

• To heat domestic hot water

• To supply gas to the system

• To cool the water

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

• Hot distribution pipe

• Primary flow

• Cold feed

• Open vent

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 vent air from the system

What is the primary function of a cylinder in a heating system?

• To store cold water

• To heat water

• To circulate air

• To generate electricity