How to Say "heater" in Spanish
The most common Spanish word for “heater” is “calefacción” — use 'calefacción' when referring to the general system or concept of heating a space, like central heating in a house..
calefacción
Examples
En invierno siempre encendemos la calefacción.
In winter, we always turn on the heating.
estufa
/es-TOO-fah//esˈtufa/

Examples
Hace mucho frío, ¿puedes prender la estufa?
It's very cold, can you turn on the heater?
Nos sentamos frente a la estufa de leña.
We sat in front of the wood-burning stove.
Esa estufa eléctrica consume mucha energía.
That electric heater uses a lot of energy.
Functional Naming
Spanish often uses the same word for different objects that provide heat. The context (kitchen vs. living room) tells you which one is meant.
Air vs. Water Heaters
Mistake: “No hay agua caliente porque la estufa no funciona.”
Correction: No hay agua caliente porque el calentador no funciona.
General System vs. Specific Device
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