Hot Water System Design Quiz

Why is it important to calculate the correct hot water system requirements within a dwelling?

• To ensure the right amount of hot water is delivered at the right temperature and safely.

• To reduce the cost of water usage.

• To increase the pressure of the water supply.

• To minimize the use of electricity.

What are the commonly used materials for pipes in domestic properties due to their ability to withstand higher temperatures and not contaminate the water?

• PVC and steel

• Copper and polybutylene

• Iron and aluminum

• Lead and brass

What must the system be able to withstand within the system, whether open vented or unvented?

• Electrical surges

• Thermal expansion and pressures

• Chemical reactions

• Mechanical wear and tear

Why should care be taken not to install hot water pipework under or next to cold water pipework?

• To prevent electrical interference

• To avoid chemical contamination

• To prevent heat transfer from the hot water pipe warming up the cold water system

• To avoid mechanical damage

According to BSEN806 Part 2, what should be the capacity of the cold water storage cistern per person in the property?

• 45 litres

• 60 litres

• 80 litres

• 100 litres

What is the recommended capacity of the hot water cylinder per person in the property?

• 30 litres

• 45 litres

• 60 litres

• 80 litres

What is the rule of thumb for the amount of hot water a typical domestic household should allow per occupant?

• 20 to 30 litres

• 35 to 45 litres

• 50 to 60 litres

• 25 to 35 litres

What factor can cause two households of the same size to use completely different amounts of hot water?

• The number of bathrooms

• The type of water heater

• Personal habits

• The age of the house

What is considered average consumption of hot water per person per day?

• 10-20 litres

• 20-30 litres

• 30-50 litres

• 50-70 litres

What is considered high consumption of hot water per person per day?

• 10-20 litres

• 20-30 litres

• 30-50 litres

• 50-70 litres