Skip to main contentUp to 24 months payment | discounts on selected products
Telehome buying guide

Climate technology ·

What to consider when choosing an air conditioner

Compare room size, noise level and service options with a simple rule.
What to consider when choosing an air conditioner

An incorrectly sized air conditioner reduces comfort and can increase energy use. Consider sunlight, ceiling height and heat sources as well as floor area.

01

Match BTU to the room

Floor area is a useful starting point for standard rooms, but an installer should confirm the final calculation.

  • Often 9000 BTU for 20-30 m²
  • Often 12000 BTU for 30-40 m²
  • Allow more capacity for sunny or open-plan rooms
02

Review inverter and noise performance

Inverter systems hold temperature more steadily. Low indoor noise is especially important in bedrooms.

  • Energy efficiency
  • Night and quiet modes
  • Operating range for heating
03

Treat installation as part of the purchase

Pipe length, outdoor-unit position and drainage directly affect the final result.

  • What standard installation includes
  • Extra pipe and cable cost
  • Service and filter maintenance
Home appliances5 key points when buying a washing machineRead articleTV and AudioHow to choose a Smart TV sizeRead articlePhonesA short smartphone selection checklistRead article