Cheapest Heating for Expats in Spain

Why Spanish Homes Feel So Cold in Winter

One of the biggest shocks for new expats arriving in Spain is how freezing the houses can feel inside during the winter. Coming from Northern Europe, you might be used to snow outside but a cozy 21°C inside thanks to central heating and double-brick insulated walls.

Spanish houses, particularly older ones on the coast, were built to survive 40°C summers. They have marble floors, single-pane windows, and walls designed to let heat escape. When winter arrives, the inside of the house can actually feel colder than the outside air.

Common Heating Mistakes Expats Make

• Buying expensive electric radiators: Thinking AC is too expensive to run, expats buy cheap plug-in heaters. These consume massive amounts of electricity.
• Ignoring their electricity tariff: Using any electric heating on an expensive Spanish tariff is a recipe for a €300+ monthly bill.
• Buying a pellet stove to save money: Salesmen pitch them as the cheap eco-option. At current pellet prices, they are far more expensive to run than a modern AC unit.

The Truth About AC Heating in Spain

Air conditioning units don't create heat; they pump it from outside. This makes them incredibly efficient (often 300% to 400% efficient). For every €1 you spend on electricity, you get €3 to €4 worth of heat.

Gas Bottles, Pellets, Wood, and Electric Heaters

Here is the quick breakdown of alternatives:

• Gas bottles (Bombonas): Very common in Spain. They throw out a lot of heat quickly, but they add immense amounts of moisture to the air, which causes mold on your walls. They are also annoying to replace.
• Olive Wood: Very cheap to buy by the cubic metre. It provides lovely radiant heat. The downside is the massive physical effort of stacking, carrying, and cleaning up ash every day.
• Pellet Stoves: Convenient and look nice, but the bags of pellets are heavy, need dry storage, and the running cost is high.
• Standard Electric Heaters: Avoid unless absolutely necessary. They are the most expensive way to heat a room.

What to Do Before Buying Another Heater

Before you spend €1,500 on a pellet stove or €200 on fancy electric radiators, do two things:

• Check your electricity tariff. Ensure you are paying around €0.10 - €0.12 per kWh with no nasty evening spikes.
• Turn on your existing air conditioning unit, set it to "Heat" (the sun symbol), set the temperature to 21°C, and leave it running.

You will likely find that your home is perfectly warm, and your bill is lower than you expected.