What aerotermia is
Aerotermia is an air-source heat pump. It moves heat from the outside air into your home or hot-water tank, typically delivering several units of heat for every unit of electricity it uses. In summer the same system can cool.
Compared with gas and gasoil
Gas bottles and gasoil boilers need deliveries, storage and servicing, and prices move with fuel markets. A heat pump runs on electricity — and if you have solar panels, much of that electricity is your own.
Compared with electric radiators
Electric radiators and immersion heaters turn one unit of electricity into one unit of heat. A heat pump produces far more heat from the same electricity, so running costs are much lower.
Why the climate here suits heat pumps
Mild winters on the Costa Blanca mean heat pumps work at high efficiency for most of the year. Homes in the Jalón Valley and inland, where nights are cooler, benefit even more because heating matters there.
Air conditioning in Spain: one system for both
Air conditioning units are themselves heat pumps. An air-to-air system (split units) heats and cools rooms; an air-to-water aerotermia system also provides hot water and can run underfloor heating. Many villa owners replace ageing aircon and a gas water heater with a single aerotermia system running on solar.
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More guides
- How much do solar panels cost in Spain?
- Solar grants and IBI discounts on the Costa Blanca (subvenciones placas solares)
- Pool heat pumps in Spain: a buyer's guide (bomba de calor piscina)
- Electricity prices in Spain: how bills work and how to cut them
- Bought a house in Spain? Is solar worth adding?
- Solar panel maintenance and cleaning on the Costa Blanca (mantenimiento placas solares)