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18000 BTU Air Conditioners

An 18,000 BTU unit suits a large living room with a kitchen, an open space or an office with up to about 6 workstations, 35–50 m². The outdoor unit is bigger, so the mounting spot is checked in advance.

  • Area35 – 50 m²
  • Capacity5.0 kW
  • Pricefrom 540 €
  • Installation in Varnafrom 180 €
  • In stock70 models with prices

Showing 1–24 of 119

When 18 000 BTU is the right size

  • The space is 35–50 m², often with an open kitchen or two connected zones.
  • If the zones are separate, a multi-split with two smaller indoor units spreads the heat more evenly.
  • The power supply is single-phase, but check the circuit breaker: more powerful models draw more current.
  • Over 50 m²: 24,000 BTU or two separate air conditioners.

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 18 000 BTU air conditioner bought from us is 180 €: up to 3 m of piping, vacuuming and commissioning. Choose “Air conditioner + installation” when you order.

Installation prices in Varna

Air conditioners by capacity: 9,000–24,000 BTU

The size is chosen by the floor area of the room. Prices and availability come from our catalogue.

Not sure about the area? How many BTU do I need: calculator and table

Questions about 18 000 BTU air conditioners

What room size is a 18 000 BTU air conditioner for?

For a room of 35 – 50 m² with a standard ceiling height and normal insulation. It suits a large living room, open space, office for up to 6 people. For a south-facing room, a top floor or a large glazed area, choose the next size up.

How much does a 18 000 BTU air conditioner cost?

Models in stock currently start from 540 €. The price depends on the brand, energy class, noise level and features such as Wi-Fi.

How much does installing a 18 000 BTU air conditioner in Varna cost?

Standard installation with up to 3 m of piping is 180 € 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 18 000 BTU air conditioner use?

An inverter 18,000 BTU unit draws 0.8–1.3 kW on average when cooling, about 29–45 € 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”.