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12000 BTU Air Conditioners

A 12,000 BTU unit is the size for a living room or large bedroom of 25 to 35 m². Torn between 9,000 and 12,000 BTU for a room of about 25 m²? Take the 12,000: it will run more easily and more quietly.

  • Area25 – 35 m²
  • Capacity3.5 kW
  • Pricefrom 315 €
  • Installation in Varnafrom 150 €
  • In stock72 models with prices

Showing 1–24 of 99

When 12 000 BTU is the right size

  • The room is 25–35 m²; with an open kitchen, add 10–15% to the floor area.
  • For an office, add about 400 BTU per person and per computer.
  • If you will heat with it, compare the maximum heating output, not just the rated figure.
  • Over 35 m² or a large glass wall: look at 18,000 BTU.

The power use of each size is worked out in our article how much electricity an air conditioner uses. If you will heat with it, see also the best air conditioners for heating.

Installation in Varna

Standard installation of a 12 000 BTU air conditioner bought from us is 150 €: up to 3 m of piping, vacuuming and commissioning. Choose “Air conditioner + installation” when you order.

Installation prices in Varna

Questions about 12 000 BTU air conditioners

What room size is a 12 000 BTU air conditioner for?

For a room of 25 – 35 m² with a standard ceiling height and normal insulation. It suits a living room, large bedroom, office. For a south-facing room, a top floor or a large glazed area, choose the next size up.

How much does a 12 000 BTU air conditioner cost?

Models in stock currently start from 315 €. The price depends on the brand, energy class, noise level and features such as Wi-Fi.

How much does installing a 12 000 BTU air conditioner in Varna cost?

Standard installation with up to 3 m of piping is 150 € for an air conditioner bought from us. Vacuuming and commissioning are included. A longer line or non-standard installation is agreed at the site visit.

How much electricity does a 12 000 BTU air conditioner use?

An inverter 12,000 BTU unit draws 0.45–0.8 kW on average when cooling, about 15–25 € a month. For heating, the bill is about 40–80 € a month. The bill depends on running hours, insulation and the unit's energy class. Details by BTU size are in our article “How much electricity does an air conditioner use”.