Solar pool heating or heat pump

• Solar heating

  Panels on the roof, pipework to and from the pool, and a controller.

• Heat pump

  A unit beside the plant, with a supply, airflow and pipe connections.

• The controls

  Both can be controlled, but the heat pump heats on demand rather than with the sun.

Decide from the roof and the season. Solar heating needs roof area that faces the sun and heats only in sunlight; a heat pump heats on demand but needs a circuit and airflow. A pool used mainly in the warmer months suits solar; a pool kept warm through winter points toward a heat pump, with solar alongside if the roof allows.

Mistakes worth avoiding

Expecting solar alone in winter

Solar panels heat only when the sun is out, so a pool kept warm through winter needs a heat pump too.

Ignoring the roof

A shaded roof or one already full of equipment cannot carry solar panels. Check the roof before choosing.

Is solar pool heating enough in winter?

Usually not alone, because it only heats when the sun is out. A pool that must stay warm through winter usually needs a heat pump, with or without solar alongside.

Can both be used together?

Yes. Solar can do the everyday warming and a heat pump can top it up when the sun is not enough, which spreads the running cost.

Which costs less to run?

Solar costs little to run because it uses the sun, but it heats less in winter. A heat pump costs more to run but heats on demand in any weather.