AEG ChillFlex Pro AXP34

A++ cooling class, near the top for a one-box portable, with propane (R290) refrigerant

Cooling power 3.4 kW (12,000 BTU)
Room size up to about 40 m² with normal ceilings and decent shading
Energy class A++ monobloc scale, Regulation 626/2011
Noise 53 dB(A) manufacturer figure; quietest advertised mode
Refrigerant R290 propane, GWP 3
Layout Single hose
Price from about €499 indicative; moves with the season

Venting and windows

A single exhaust hose pushes hot air out through the window, which pulls a slight vacuum in the room; warm air leaks back in through every gap. The window seal decides whether you keep the rated output, so budget €15 to 30 for a cloth seal kit that matches your window type.

Tilt-and-turn venting guide · Casement venting guide · Buying guide

What stands out

  • A++ cooling class, near the top for a one-box portable, with propane (R290) refrigerant
  • Strong cooling for its price tier; the related AEG Comfort 6000 is a German best-list pick for usability
  • Runs louder at full power, so size it generously and use the sleep mode at night

Where the numbers come from

Independent backing: German best-lists (heise). Remaining figures come from the manufacturer's datasheet and the EU energy label. We have not lab-tested this unit ourselves; the methodology page explains how the shortlist is put together and what the label classes mean.

Where it is sold

Amazon.de · OTTO.de · MediaMarkt · AEG store · stocked in de. Not a live stock feed; prices move with the season.

Check price from €499

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