Frequently Asked Questions

Capacity is chosen based on the floor area and characteristics of the room. As a rule of thumb:

• up to ~20 m² → 9000 BTU

• 20–35 m² → 12000 BTU

• 35–50 m² → 18000 BTU

With strong sun exposure, poor insulation or large shop windows, you may need a more powerful model.

BTU indicates cooling/heating capacity:

• 9000 BTU → small rooms, bedrooms

• 12000 BTU → living rooms, medium-sized rooms

• 18000 BTU → large rooms, open-plan spaces

The larger the room, the higher the BTU rating you need.

An inverter air conditioner adjusts its output smoothly and holds a steady temperature, which means lower power consumption and quieter operation. Standard (on/off) models are cheaper, but less efficient and prone to bigger temperature swings.

Yes. Modern inverter air conditioners heat efficiently even at low outdoor temperatures. Models with a high energy class and a good COP/SCOP rating are an excellent choice for the winter season.

Consumption depends on the energy class, operating mode and the room’s insulation. A++/A+++ inverter air conditioners can significantly reduce consumption. Actual usage varies with the set temperature and outdoor conditions.

The choice depends on the floor area, layout, orientation and insulation. For most apartments, the best option is an inverter air conditioner that holds a stable temperature and runs economically. It is important that the unit is correctly sized for the room.

Capacity is determined mainly by floor area:

• up to ~20 m² → 9000 BTU

• 20–35 m² → 12000 BTU

• 35–50 m² → 18000 BTU

Factors such as sun exposure, large windows or poor insulation may call for a higher capacity.

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Inverter models adjust their output smoothly, which reduces power consumption and noise. Standard (on/off) air conditioners are cheaper, but less efficient and prone to bigger temperature swings.

Yes. Modern inverter air conditioners heat efficiently even at low outdoor temperatures. For winter use, we recommend models with a high SCOP and a quality compressor.