12,000 BTU portable air conditioners
12,000 BTU suits a room of roughly 35m² at 340 BTU per square metre. Live Amazon and eBay stock, updated every 2 hours.
Checked across UK retailers · 71 units tracked
In stock now · cheapest
71 of 71 products
Air Conditioner Tower 12000 BTU, Portable Air Conditioning Fan Ducted Pipe New
Tower
In stock
£499.99
eBay · 2h ago
TCL 12000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat TAC-12CHSD
TCL
In stock
£449
eBay · 6h ago
Air Conditioner 12000BTU Elecci KY-29B1 4-in-1 Dehumidifier Fan Dryer
Air
In stock
£499.99
eBay · 2h ago
12000BTU Wall Split Air Conditioner WiFi Heat Pump Cooling A+++ Installation Kit
12000BTU
In stock
£429.99
eBay · 2h ago
Brand New Portable Air Conditioner 12000 BTU Includes Accessories
Brand
In stock
£429.99
eBay · 4h ago
12000 BTU Mini Split Air Conditioner & Heater A+Energy Efficient Inverter Split
12000
In stock
£379.99
eBay · 14h ago
TCL 12000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pum TAC12CH
TCL
In stock
£449
eBay · 6h ago
Portable Air Conditioner 12000 BTU With Accessories BRAND NEW
Portable
In stock
£429.99
eBay · 12h ago
electriQ EcoSilent12WAP 12000 BTU Portable Air Conditioner WiFi,READ DESCRIPTION
electriQ
In stock
£229.50
eBay · 14h ago
SERENELIFE PORTABLE AIR CONDITIONER SLINV12CHPDUK 12,000 BTU
SERENELIFE
In stock
£399.40
eBay · 12h ago
12000 BTU Wall Split Air Conditioner WiFi Heat Pump Cooling A+++ Remote Control
12000
In stock
£379.99
eBay · 14h ago
Temprium 12000 BTU Portable Air Conditioner Wi-Fi App/Remote 24hr Timer White
Temprium
In stock
£373.90
eBay · 6h ago
12000 BTU Portable Air Conditioner Quiet Mobile 4 in 1 Unit 5-7 Day Dispatch
12000
In stock
£306.73
eBay · 12h ago
12000 BTU Portable Air Conditioner, Dehumidifier 24hr Timer, Black
12000
Low stock
£255.50
eBay · 4h ago
Princess Smart Air Conditioner 12000BTU
Princess
In stock
£104.70
eBay · 8h ago
portable air conditioner 12000 btu, 4-in-1 ac unit with 24h timer
portable
In stock
£239.90
eBay · 34 min ago
12000 BTU Portable Air Conditioning Unit / Cooling & Heating 5-7 Day Dispatch So
12000
In stock
£249.99
eBay · 14h ago
Pro Breeze OmniCool 12,000 BTU Wi-Fi
Pro Breeze
Sold out
£399.99
12000 BTU · 58dB · Amazon · 6h ago
eBay · Sold out
Pro Breeze 12,000 BTU 4-in-1 Smart AC
Pro Breeze
Sold out
£249
12000 BTU · 62dB · eBay · 6 Jul, 14:00
eBay · Sold out
MeacoCool Pro Series 12,000 BTU Wi-Fi
Meaco
Sold out
£449
12000 BTU · 58dB · Amazon · 34 min ago
electriQ Heavy Duty 12,000 BTU Commercial AC
electriQ
Sold out
£349
12000 BTU · 66dB · Amazon · 34 min ago
eBay · Sold out
3-in-1 Portable Air Conditioner 12000 BTU, ELECCI Mobile Air Conditioning for Ho
ELECCI
Sold out
£494.99
12000 BTU · Amazon · 34 min ago
Dreo Smart 3-in-1 Portable Air Conditioner 12000 BTU
Dreo
Sold out
£599.99
Amazon · 34 min ago
eBay: Meaco Cirro 12000 BTU Portable AC — Cooling & Heating
Meaco
Sold out
£724.99
eBay · 6h ago
eBay · Sold out
Other capacities in Portable AC
Room sizing
Will 12,000 BTU suit your room?
As a rule of thumb, air conditioning needs roughly 340 BTU per square metre. A 12,000 BTU unit will cool approximately 35m² comfortably on the hottest days. South-facing rooms and high ceilings need more capacity. Undersized units run flat-out and never quite bring the room temperature down.
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