12,000 BTU air conditioning units in stock
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 · 4 units tracked
4 of 4 products
| Status | Unit | BTU | Room | Noise | Price | Retailer | Checked | Buy |
|---|---|---|---|---|---|---|---|---|
| In stockRestock alert |  12V Truck Air Conditioner Mini Split A/C For Semi Trucks Bus RV Caravan 12000BTU 12V | — | — | — | £499 | eBay | 3 Oct, 08:40 | |
| In stockRestock alert |  12V 12000BTU Air Conditioner Mini Split A/C For Semi Trucks Bus RV Caravan Vans 12V | — | — | — | £549.99 | eBay | 24 Sept, 09:00 | |
| Sold outRestock alert |  Samsung AR40H12 12000 BTU A++ Wall Mounted Air Conditioner Heat Pump WiFi Samsung | — | — | — | £515.68 | eBay | 4 Oct, 08:50 | |
| Sold outRestock alert |  12000 BTU Mini Split Air Conditioner & Heater Inverter Split AC Indoor only 12000 | — | — | — | £100 | eBay | 22 Sept, 15:00 | eBay · Sold out |
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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