Topic 02 · 20 min

How heat pumps work

Understand the refrigeration cycle in plain language, COP and SCOP, flow temperature, defrost and what happens in cold weather.

1. 1Understanding efficiency3 min · 3 questions · How can something be 350% efficient?
2. 2The refrigeration cycle4 min · 3 questions · What's actually happening inside the box?
3. 3COP and SCOP3 min · 3 questions · Which efficiency number should I actually believe?
4. 4Flow temperature and lift4 min · 4 questions · Why does 45°C water beat 65°C water?
5. 5Defrost and cold weather3 min · 3 questions · What happens on the coldest night of the year?
6. Learning checkOpens after the 5 remaining lessons · 80% to pass · credits £10+£10