The most renter-friendly options
Portable AC, fans, blackout curtains, removable window film, and temporary window seals are the usual shortlist. A dehumidifier can also help in damp, sticky homes, though it is not an air conditioner.
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Portable air conditioner
Compact Portable Air Conditioner
Best for: bedrooms, home offices, and short heatwaves
Key features
- Exhaust hose for a window
- Sleep or quiet mode
- Timer and remote control
Approx price
£250-£550 / €300-€650
Pros
- Fastest renter-friendly cooling
- Can move between rooms
- No permanent installation
Cons
- Needs a window seal
- Noisy compared with split AC
- Uses more electricity than a fan
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Powerful fan
High-Airflow Circulator Fan
Best for: moving cooler night air and improving comfort without AC
Key features
- Directional airflow
- Several speed settings
- Compact footprint
Approx price
£40-£160 / €45-€180
Pros
- Low running cost
- Works with open windows at night
- No installation
Cons
- Does not lower room temperature
- Can dry eyes
- Limited help during very hot nights
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Blackout blinds/curtains
Thermal Blackout Blind or Curtain
Best for: south-facing rooms and bedrooms that overheat before evening
Key features
- Light-blocking fabric
- Thermal lining
- Made-to-measure or temporary options
Approx price
£30-£180 / €35-€210
Pros
- Prevents heat gain
- Improves sleep
- Useful all year
Cons
- Works best if closed before sun hits
- Can make rooms dark
- Fitting may matter
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Reflective window film
Reflective Solar Window Film
Best for: hot windows where curtains are not enough
Key features
- Solar heat rejection
- Cut-to-size sheets
- Removable options available
Approx price
£20-£90 / €25-€110
Pros
- Reduces radiant heat
- Keeps daylight
- Good for loft and balcony doors
Cons
- Can affect window appearance
- Lease rules may apply
- Installation takes patience
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Dehumidifier
Bedroom Dehumidifier
Best for: humid flats where sweat does not evaporate well
Key features
- Humidity target setting
- Laundry mode
- Drain hose option
Approx price
£120-£300 / €140-€350
Pros
- Can make warmth feel less sticky
- Helps damp homes
- Useful outside summer
Cons
- Adds some heat while running
- Not a cooling device
- Needs emptying
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What to ask your landlord
Ask before drilling into walls, changing windows, installing external shading, or placing outdoor equipment. Keep the question specific and written. A vague conversation is less useful than a clear email with what you want to install and how it will be removed.
Flat and apartment tactics
If you have only one usable window, plan around it. Seal the AC hose carefully, close internal doors, and avoid cooking or running appliances in the hottest part of the day. In shared flats, agree which room becomes the cool room during heatwaves.
Good for / not good for
Renter-friendly cooling is about compromise.
Good for
- short leases
- deposit protection
- quick setup
- one-room cooling
Not good for
- silent operation
- whole-home cooling
- major south-facing glass without shading