Wednesday, 21 October 2026 · Costa del Sol 21°C ☼
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Is air conditioning or aerothermal better for running costs?

Costa del Sol (general) · Asked by Katarina · 2 answers

We're renovating and deciding between split units and an aerothermal system. Which is cheaper to run?

2 answers

9
✓ Best answer

Aerothermal can be efficient and gives hot water too, but costs more to install. Split units are cheaper upfront and fine for a few rooms. Your electricity tariff and usage matter, so ask installers for a comparison, not a headline claim.

by Dave in Mijas
4

Solar panels can offset either option, but check community rules.

by Marta R.

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