Portable AC
Inventor Chilly 9K Wi-Fi Portable AC
A 9000 BTU portable AC you can switch on from the train.
£449.99£499.99or 3 × £150.00 interest-free
- 9000 BTU
- Wi-Fi + app control
- Self-evaporative
- 950W — about 23p an hour
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13.4% slower reaction times (and 13.3% slower working-memory responses) measured in homes without cooling during a real heatwave, versus air-conditioned homes. Cedeño Laurent et al., PLoS Medicine, 2018
Running costs
What does a cool night actually cost?
8h
1h24h
Electricity rate
Inventor Chilly 9K Wi-Fi Portable AC draws just 950W — about the same as an old lightbulb.
Your cool night costs
≈ 0pper night
Per week£13.03
Per month of summer use£55.86
Same month with portable AC£70.56
Based on 950W at 24.5p/kWh (uk avg). Your tariff may vary — it'll still be pennies.
- Tank capacity
- 0 L
- Noise
- 54 dB (max)
- Power
- 950 W
- Height
- 70 cm
- Weight
- 24 kg
- Room size
- up to 0 m²
- Speeds
- 3 + sleep
- Timer
- 12 h
- Controls
- Remote & touch panel
How loud is it?
Quieter than your conversation.
Whisper
25 dB
Inventor Chilly 9K Wi-Fi Portable AC
54 dB
Conversation
60 dB
Vacuum cleaner
75 dB
Quiet enough for TV evenings; sleep mode drops it lower.
The spec sheet
What it actually does, in numbers.
23p
per hour to run
based on uk avg electricity rates
0L tank — real runtime between refills
Airflow per spec sheet
54 dB — noise at max speed
| Noise | 54 dB |
| Power draw | 950 W |
| Height | 70 cm |
| Weight | 24 kg |
| Running cost | ~23p/hour |
Every spec on this page comes from the manufacturer's data sheet. We don't invent airflow figures or noise ratings — if a unit can't meet its claims, it doesn't go in the range.
