Buying a portable air conditioner in France: the 2026 guide

🗓 Updated July 17, 2026 · EcoBack editorial team

France's 2026 summer has already brought repeated heatwaves, and most French homes still have no air conditioning at all. A portable AC (climatiseur mobile) is the fastest fix: no installation, no landlord permission, plugged in the day it arrives. Here's how to pick the right size for a French flat, solve the window problem, and time your order so you're not shopping when everything is sold out.

Why 9,000 BTU suits most French rooms

Portable AC sizing is mostly about floor area. A useful rule of thumb is around 340 BTU per square metre of room. That maps like this:

• Up to ~15 m² (small chambre, home office): 5,000–7,000 BTU is enough.
• 15–25 m² (typical French bedroom or salon): 9,000 BTU (~2.6 kW) — the sweet spot, and the size with the widest choice of models.
• 25–35 m² (large salon, open kitchen-living area): 10,000–12,000 BTU.

Most French apartment rooms fall in that middle band, which is why 9,000 BTU is the size to default to unless your room is unusually small or large. If your salon faces south with big windows, or sits under the roof, treat it as one size class bigger. For the full calculation, see our BTU sizing guide.

The window problem in French flats — and how to solve it

Every portable AC needs to push hot air outside through an exhaust hose, and that's where French windows cause hesitation. Two common cases:

• Fenêtres oscillo-battantes (tilt-and-turn): very common in newer buildings. A fabric window seal kit (roughly €15–30) zips around the tilted sash and the frame, and the hose exits through a zip opening. It takes about 15 minutes to fit and comes off without a trace — rental-friendly. We cover the setup step by step in our tilt-and-turn window guide.
• Classic French casement windows (opening inwards or outwards on hinges): the same cloth kits work here too — the fabric wraps around the open casement instead of a tilted sash. Check the kit's stated dimensions against your window before ordering.

Whatever you do, don't just hang the hose out of a wide-open window: hot outside air streams straight back in around it and can cancel half of the cooling you're paying for in electricity.

Stock reality: order before the peak

This is the part most buyers learn the hard way. When a heatwave hits France, demand for portable ACs explodes within 24–48 hours — and the well-reviewed models are the first to go. In recent heatwave summers, popular units sold out at major retailers within days, leaving only obscure brands at inflated prices. The pattern repeats every summer.

The practical rule: buy in late spring or early summer, before the first big spike. If a heatwave is already in the forecast for next week, order now — not on the first 35°C afternoon, when everyone else has the same idea and delivery slots stretch out.

Prices, models and where to order

For a decent 9,000 BTU portable AC, expect roughly €250–450. Below €250 you're usually looking at weaker 5,000–7,000 BTU units; above €450 you're paying for extras like app control or lower noise. Two models we point to on the site, both regularly well-reviewed in public tests:

• De'Longhi Pinguino PAC EX105 — the all-rounder: strong cooling for rooms up to ~25 m², from a brand with wide service coverage in France.
• Comfee MPPH-09CRN7 — the value pick: a 9,000 BTU workhorse that usually sits at the lower end of the price band.

Note: we haven't tested these units ourselves — we summarise public test results and user feedback.

An honest logistics note: many amazon.de listings ship to France, and our links point there. But during a heatwave, cross-border delivery can be slower than usual — and amazon.fr sometimes has the same model in local stock. It's worth comparing both storefronts for price and delivery date before you order; the model advice above applies either way.

What doesn't work

• Waiting for the first 35°C day to order. That's exactly when stock disappears and delivery estimates jump from days to weeks. You end up overpaying for a leftover no-name unit — or sweating through the wave with nothing.
• Buying an undersized 5,000 BTU unit for a 25 m² salon. It will run flat out all day, barely move the temperature on a 38°C afternoon, and still consume electricity the whole time. Sizing down to save ~€100 upfront is the most common and most expensive mistake.
• Running the AC with an unsealed window. Without a seal kit, warm air re-enters around the hose and the room barely cools. The €15–30 kit is not optional — it's part of the purchase.

Frequently asked questions

What size portable air conditioner do I need in France?
For most French bedrooms and salons of 15–25 m², a 9,000 BTU (about 2.6 kW) portable air conditioner is the right size. Smaller 5,000–7,000 BTU units only manage rooms up to roughly 12–15 m², while rooms above 25–30 m² or with big sun-facing windows need 10,000–12,000 BTU. As a rule of thumb, allow around 340 BTU per square metre.

Can I use a portable AC with French tilt-and-turn windows?
Yes. Tilt-and-turn windows (fenêtres oscillo-battantes) work well with a fabric window seal kit (about €15–30): the cloth zips around the tilted sash and frame, and the exhaust hose passes through a zip opening. Classic French casement windows that open inwards or outwards can use the same cloth kits fitted around the open casement. Without a seal, hot outside air flows straight back in and cancels much of the cooling.

When should I buy a portable AC in France?
Before the first major heatwave — ideally in late spring or at the start of summer. During recent French heatwaves, popular portable AC models sold out within days and prices on remaining stock rose. If a heatwave is already forecast, order immediately rather than waiting for the first 35°C day, and compare amazon.de and amazon.fr, since delivery times stretch when demand spikes.