Straightforward answers to the questions we get asked most, from running costs to which brand to choose.
No physics degree required — the real mechanism behind how one unit cools in summer and heats in winter.
Read the guide →A clear, hour-by-hour breakdown of Haier running costs, using the current Ofgem price cap.
Read the guide →What the relief actually covers, who qualifies, how much it saves, and when it ends.
Read the guide →The physics behind why a reversible heat pump can heat a room efficiently even on a cold day.
Read the guide →