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Large Air Conditioners

Shop large air conditioning units to keep your home or office cool

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11 products

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  • 18k BTU: For large spaces like homes and commercial use
  • 4-in-1: Air con, heater, fan and dehumidifier mode
  • Cheap to run: A rated energy efficiency
  • Heat pump: Heating function for year-round use
  • For rooms up to: 46sqm
Energy Label
SAVE 21%
SAVE £170
£799.98
£629.97
Refurbished from £519.98£ » View product
electriQ iQool 24000 BTU WiFi Smart A++ Wall Split Air Conditioner with Heat Pump and 5-Meter Pipe Kit Included
Best buy banner
  • 3-in-1: Cooling, heating and dehumidifying
  • Powerful and quiet - for home, office & commercial use
  • Control the temperature and schedule from your smartphone
  • A++ ultra energy efficient Air Conditioner
  • For rooms up to: 60sqm
Energy Label
SAVE 15%
SAVE £130
£749.98
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  • Cooling, dehumidifying and fan functions
  • Great for bedrooms and offices
  • Auto-swing function for maximum cooling
  • Low power consumption saves you money on your bills
  • For rooms up to: 30sqm
Energy Label
SAVE 19%
SAVE £135
£579.98
Refurbished from £479.98£ » View product
Free Delivery
  • For rooms up to: 21sqm
  • Timer: 24 hours
  • Warranty: 1 year warranty
Energy Label
SAVE 25%
SAVE £151
£599.98
£449.00
FREE Delivery to most of the UK
Refurbished from £379.98£ » View product
electriQ iQool 24000 BTU WiFi Smart A++ Wall Split Air Conditioner with Heat Pump and 5-Meter Pipe Kit Included - Black
Black
White
  • A++ ultra energy efficient Air Conditioner
  • Perfect for home, office and commercial use
  • EasyFit: Pre-gassed with 5m pipe and cable kit
  • Really powerful but quiet in operation
  • For rooms up to: 60sqm
Energy Label
SAVE 9%
SAVE £80
£799.97
View product
  • 3 in 1 unit with Cooling, Fan, Dehumidifier function
  • 18,000 BTU air conditioner - great for rooms up to 46 sqm
  • Multi protective functions to prevent damage and protect the service life of the machine
  • For rooms up to: 46M2
  • Timer: 24 hours
Energy Label
SAVE 6%
SAVE £80
£1349.98
View product
  • For rooms up to: 60sqm
  • Warranty: 1 year warranty
Energy Label
£1795.95
View product
Grade A1

  • For rooms up to: 30sqm
  • Timer: 24 hours
  • Warranty: 6 month warranty
Energy Label
SAVE 10%
SAVE £60
£579.98
£519.98
Other grades and new from £479.98£ » View product
Grade A1

  • For rooms up to: 46sqm
  • Timer: 24 hours
Energy Label
SAVE 30%
SAVE £240
£799.98
£559.97
View product
Grade A1

  • For rooms up to: 60m²
  • Smart: WiFi Built-in
  • Timer: 24 hours
  • Warranty: 6 month warranty
£879.98
View product
Grade A2

  • For rooms up to: 60m²
  • Smart: WiFi Built-in
  • Timer: Programmable
£734.98
Other grades from £699.98£ » View product

Air Conditioner Calculator

Use our handy calculator, which will help you figure out exactly what size of unit you require for your office or home.

What are the room dimensions?

How many people and heat sources are in the room?

What is BTU?

A BTU (British Thermal Unit) is a rating used to determine the heating or in the case of an Air Conditioner unit the cooling capacity of an appliance.

Typically a minimum of 7000 BTU is needed to cool a small room, whereas commercial units can reach up to 25,000 BTU and beyond. Simply, the greater the BTU, the larger the space that the unit can cool.

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