Hot Water Systems Quiz

What is a component connected to hot water pipework?

• Radiator

• Heater

• Valve

• Pump

According to BS 6700, what is the main purpose of the cold feed pipe in a hot water storage system?

• To cool the water

• To allow expansion of water when heated

• To drain the system

• To filter impurities

What is the benefit of using a superduty cylinder with condensing boilers?

• Increases boiler cycling

• Maximizes time in condensing mode

• Decreases energy efficiency

• Increases installation cost

Which type of immersion heater installation uses a twin element?

• Single element immersion heater

• Twin element immersion heater

• Bottom installed immersion heater

• Side-entry immersion heater

How much fully heated water can a cylinder supply on a 1-hour boost during the day?

• 30 litres

• 40 litres

• 50 litres

• 60 litres

What is the capacity range for gas-fired storage water heaters?

• 50 to 200 litres

• 75 to 285 litres

• 100 to 300 litres

• 150 to 400 litres

What is one of the advantages of a gas-fired storage water heater system according to the Building Regulations?

• High initial cost

• Requires a flue

• Fully compliant with Document L

• Siting of the heater can be difficult

What is a challenge when installing a gas-fired storage water heater system?

• Siting of the heater can be difficult

• Quick turnaround of hot water

• Low initial cost

• No need for a flue

What material is used for insulating cylinders?

• Polyurethane foam

• Fiberglass

• Styrofoam

• Rubber

What is the purpose of secondary circulation in hot water systems?

• To increase water pressure

• To reduce water temperature

• To prevent cold water from being drawn off before hot water arrives

• To decrease pipe length