Heat Pumps

Solar or heat pump first which pays back

Published 3 Jun 2026

What this video covers

Solar or heat pump first — which pays back faster?

Solar usually pays back faster — around 7 to 10 years. A heat pump is the bigger long-term saver, especially with the £7,500 grant. But the cheapest win of all is insulating first.

In this video

  1. 0:00 The short answer
  2. 0:16 Solar usually pays back faster
  3. 0:30 A heat pump is the bigger long game
  4. 0:47 But insulate before either
  5. 1:04 What this means for you