The low-carbon-ready system

1 Typically what temperature difference between the flow and return do you design for a heat pump installation?

A: 12°C

B: 20°C

C: 5°C

D: 15°C

2 What standard is used for calculating radiator heat outputs?

A: EN 554

B: EN 445

C: EN 442

D: EN 767

E: None of the above

3 What is the maximum temperature of a low-carbon-ready heating system

A: 45°C

B: 50°C

C: 35°C

D: 55°C

E: 75°C

4 Without changing the pipe size, if I increase the flow rate and consequently reduce the temperature difference between the flow and return pipework, the pipe velocity and pressure loss increases.

A: True

B: False

5 Which standard is used for correctly designing an underfloor heating system?

A: BS EN 1246

B: BS EN 1265

C: BS EN 1624

D:BS EN 1642

E: None of the above