The best 9000 BTU air conditioners, compared.
Top pick: Generic 9000 BTU wall split Best value: HOMILEC HL-007 9000 BTU – Lowest portable price here, at £299.99, with 900 W, R290, class A and 22 reviews you can read. Updated 20 October 2026.
A 9000 BTU air conditioner is a refrigerant cooler rated at about 2.6 kW. You tell a genuine unit by the exhaust hose or the outdoor condenser, the refrigerant (often ), a UK plug, and an energy label. For a portable, look for a hose you can seal to a British window, a stated wattage near 900–1,023 W, and reviews about cooling rather than an app that never pairs. A fixed split is quieter indoors, and fitting one is building work, covered in the split air conditioners comparison. Floor areas and decibel lines below are listing figures. Speedy BTU guide treats 9,000 BTU as about 2.6 kW, and 9000 CH page puts that size on roughly 16–26 m². Listing claims of 20–26 m² are a ceiling, not a promise.
A 9000 BTU air conditioner is a refrigerant cooler rated at about 2.6 kW. You tell a genuine unit by the exhaust hose or the outdoor condenser, the refrigerant (often ), a UK plug, and an energy label.
22 products checked · 58 hrs invested · +21,400 readers
Swipe for more
1-2 of 6
Personal buying guide
Question 1 of 2
Where does the heat leave the room?
The generic wall split is £599.99 for a unit the listing calls 9000 BTU and says needs a new outdoor unit, and amazon.co.uk shows 5.0 from two reviews. The only written review says it was fitted in an afternoon, cooled until the room was too cold, and that outdoor feet were not in the box. The title says A++ and the bullets name an inverter, heating and up to 22 m², with 22 dB printed and no test method on the listing. A capacity field says 2.6 tons, which does not match 9000 BTU (about 0.75 ton), so that field is not the cooling power. Wattage, refrigerant, weight and dimensions are missing, and the £599.99 is hardware in this capture, not an installed system. Two ratings are too small a file to place it above portables with 20 or 62 reviews.
Pros
Cons
Best for: You already have an installer lined up for a fixed 9000 BTU split and you will check the parts list on arrival.
Less suitable: You rent, you need cooling this week, or you wanted a plug-in hose unit. One afternoon fitting in a review is not a template.
Specifications
Common questions
Does this split need an outdoor unit?
Yes. The spec table says an outdoor unit is required and that it requires a new outdoor unit. It is not a window-hose portable.
What is in the box?
The listing says a remote control and an installation kit. The only review says feet for the outdoor unit were not included.
What cooling figure should you trust on this listing?
Cooling power is listed as 9000 BTU and the bullets say up to 22 m². A separate capacity field says 2.6 tons, which does not match 9000 BTU. The noise line says 22 dB and the title says A++.
The DUXMM listing is £435.98, the title says 7000/9000 BTU, the variant line is 9000 BTU, and amazon.co.uk shows 5.0 from a single review. That review describes a bedroom in a heatwave, an exhaust hose that was easy to install, and a timer, sleep mode and dehumidifying. The bullets tell you to stand the unit upright and leave it unplugged for 24 hours, and to send the hose outside before cooling will work. The page lists 19 kg, 68 × 33 × 68 cm, a drain pipe, a water-full alert and a claim of 16 °C in 8–15 minutes under suitable conditions. Wattage, voltage, refrigerant, energy class and noise are absent. One five-star text cannot show whether leaks or noise repeat, and the price sits above the HOMILEC, which publishes watts and 22 reviews.
Pros
Cons
Best for: You already accept the listed modes and you will treat the single five-star review as one bedroom anecdote.
Less suitable: You are choosing on stars, or you want a wattage and a noise figure you can compare.
Specifications
Common questions
How do you install the exhaust hose?
The listing says to connect the exhaust hose and send warm air outside through a suitable window before you use cooling. The box includes the hose and a drain pipe. The only review says the hose was easy to install.
Do you need to wait before switching it on?
Yes. The bullets say to stand the unit upright and leave it unplugged for 24 hours after delivery so the compressor oil can settle.
Does it include heating or Wi-Fi?
Neither is listed. Modes named are cooling, fan, dehumidifying and sleep, with a remote and a touch panel.
The iCAN portable is £399.99 for a 9000 BTU unit listing cooling, heating, dehumidifying, fan and sleep, and amazon.co.uk shows 4.3 from 20 reviews. Buyers report heatwave drops such as about 30 °C to 20 °C or 29 °C to 22 °C, which is a buyer’s thermometer, not a lab test. The listing prints class A, R290, 55 dB, a claimed 20 m², and a kit for sliding windows from 17 to 53 inches. A UK reviewer said that kit was the wrong type for their casement windows, and others say the hose and the mains lead are short, with instructions that said not to use an extension lead. Wattage, voltage, weight and dimensions are missing, so you cannot compare its draw with the Air Pro’s stated 1023 W. Noise comments split between white noise and a lower fan speed one buyer called fairly noisy.
Pros
Cons
Best for: You want heating as well as cooling, your window is a slider the kit can span, and you can accept a 20-review file.
Less suitable: You only have casement windows, or you need a published wattage before you compare running cost.
Specifications
Common questions
Will the included window kit fit a casement window?
The bullets say the kit fits horizontal and vertical sliding windows from 17 to 53 inches. A UK reviewer said that kit was not the type their casement windows needed.
Does the iCAN unit heat as well as cool?
Yes. The listing describes cooling, heating, dehumidifying, fan and sleep modes, and one reviewer mentioned the heating mode.
What noise figure is printed?
The listing says 55 dB. Reviews disagree: some call it acceptable, one calls the lower fan speed fairly noisy.
The Air Pro AP-E6 is a 9000 BTU portable at £449.99, with the largest review file in this comparison at 3.9 from 62 amazon.co.uk reviews. Buyers describe it cooling a living room or a bedroom through a UK heatwave, and several say setup was straightforward, including one fitted by family for elderly parents. The listing states 1023 W, 240 V, class A, R290, 23.5 kg, 65 dB, a claimed 20 m², and a window kit for sliding and hinged windows. The remote and timer are used from bed, though at least one bedroom review says sleep mode is still loud. Alexa and the app are named on the page, and more than one reviewer says they do not connect, while cooling itself still runs. The hose is a repeated weak point, called short or prone to pulling off at the outlet, and no heating mode is listed.
Pros
Cons
Best for: You want a hose portable with watts, refrigerant and a review file large enough to read, and you do not need a heating mode.
Less suitable: You are buying it for Alexa or Google Home, or you need a bedroom that stays quiet on sleep mode.
Specifications
Common questions
Does the Air Pro AP-E6 include a window kit?
Yes. The box contents list a remote and a window kit, and the bullets say the kit suits sliding and hinged windows.
Does the listing include heating?
No heating mode is listed. The stated functions are air conditioning, dehumidifier, sleep and fan modes.
Is Wi-Fi listed?
Yes. The listing says app, touch panel and remote control, and the bullets also name Alexa and Google Home. Several reviews say Alexa or the app did not connect.
The HOMILEC HL-007 is a 9000 BTU portable at £299.99, drawing a stated 900 W at 240 V, and amazon.co.uk shows 3.4 from 22 reviews. Bedroom buyers say the air feels cold near the outlet, and one ordered two units for children’s rooms, with the low fan speed described as quieter while it still cools. The listing states class A, R290, 22.5 kg and a claimed 25 m², and a UK review names a 1.5 m hose that did not reach, so a longer 150 mm hose was bought. Several texts call it very noisy, the louvres move only up and down, and one unit leaked from underneath after two uses. A reviewer says it failed after about four months and the seller refused responsibility. There is no heating mode, and one buyer found it marked unsuitable for a caravan.
Pros
Cons
Best for: You want the lowest portable price in this set, with watts and refrigerant printed, and you can vent a hose in a room you do not need to heat.
Less suitable: You need heating, a quiet night, or a seller whose reviews already show faults being put right. A review also says the unit is marked unsuitable for caravans.
Specifications
Common questions
Does the HOMILEC HL-007 need a window hose?
Yes. The listing includes a window installation kit, and a UK review names a drainage tube, a window blocker and a 1.5 m hose. One reviewer bought a longer 150 mm hose because 1.5 m did not reach.
Does it heat the room as well as cool it?
Heating is not listed. The stated modes are cooling, dehumidifier, fan and sleep.
What energy class and power does the listing give?
The listing says energy class A, 900 W and 240 V, with refrigerant R290 and no inverter.
The Air Pro AP0502 is listed at £399.99 as a 9000 BTU portable with heat and Wi-Fi, and this amazon.co.uk capture has no star rating and no review count. The bullets say cool, heat, dry and fan, while the specification operating-mode line says cooling only, so the heat claim is not consistent on the page. Stated figures include 1023 W, 240 V, class A, 65 dB, 25.5 kg and a claimed 26 m², with a hose, window slide bar, adapter and a two-year warranty line. Refrigerant is not stated, and the annual-energy field prints 2949 kWh, which you should not treat as a measured bill from this comparison. Without a customer text you cannot tell whether the Wi-Fi pairs or the hose seals. The £399.99 price is not a reason to prefer it over the Air Pro listing that does have 62 reviews.
Pros
Cons
Best for: You want a heat-and-cool portable at £399.99 and you will check the live amazon.co.uk review line before you pay.
Less suitable: You need buyer reports of cooling, noise or the app. This file has none.
Specifications
Common questions
Does this Air Pro need an exhaust hose?
Yes. The included components are a hose and an installation kit, and the bullets name an exhaust hose, a window slide bar and an adapter.
Can it heat as well as cool?
The bullets say you can switch between cool, heat, dry and fan. The spec table’s operating-mode line only says cooling.
How many reviews are on the listing?
The listing has no customer-review score or review count.
For this comparison we read six 9000 BTU air conditioner listings on amazon.co.uk, dated 20 October 2026, and checked the label, plug and fitting points against public UK sources. Editorial scores use those listing figures and review counts. Weights are Amazon evidence 25, listing fit 40, review outcome 25 and value 10. We did not run a lab test. A claimed floor area, or a decibel line with no test method, is not treated as a UK measurement.
Amazon evidence
25%Up to 20 points from the amazon.co.uk star rating, plus up to 5 for the review count. Fewer than five reviews deducts further. A listing with no review line scores 0 for this block.
Listing fit
40%One capacity, a named refrigerant, wattage, weight, dimensions, an energy class, a noise line, and a vent method that matches the type. Missing watts or mass, a 7000/9000 title, or a tons field that clashes with 9000 BTU scores down.
Review outcome
25%UK reviews that describe cooling in a heatwave score higher than a file that repeats leaks, a dead unit, an app that never pairs, or a sample of one text.
Value
10%Shelf price in GBP against a specification you can compare. The lowest price does not take the top pick when reviews describe a failure and refused support.
Confirm it is a compressor air conditioner, match about 2.6 kW to the room, then plan the hose or the outdoor unit. Heat mode and Wi-Fi come after those three.
A 9000 BTU air conditioner is a refrigerant cooler rated at about 2.6 kW. Speedy Hire’s BTU guide treats 9,000 BTU as about 2.6 kW, and Meaco’s 9000 CH page puts that size on roughly 16–26 m². Listing claims of 20–26 m² in this set are a ceiling, not a promise. You tell a genuine unit by the exhaust hose or the outdoor condenser, a named refrigerant (often R290), a UK plug, and an energy label under the retained air-conditioner rules.
Ice, a water tank, or a USB mist is an evaporative cooler or a fan. A 9000 BTU air conditioner in this set has an exhaust hose or an outdoor condenser, and usually R290.
A sash slider in the box often misses a casement or a tilt-and-turn frame. One iCAN reviewer had that mismatch. A 1.5 m HOMILEC hose was too short in one home, and a kinked hose wastes the cooling.
The wall-split listing has a capacity field of 2.6 tons next to a 9000 BTU title. 2.6 refrigeration tons would be about 31,000 BTU. 9000 BTU is about 0.75 ton. Use the 9000 BTU line.
Match the listing to a refrigerant cooler before you compare BTU. An exhaust hose or an outdoor condenser, a named refrigerant, a BS 1363 plug and an energy label are the signs. A water tank is a different product. R290 stays inside a sealed circuit.
About 2.6 kW suits a small bedroom, a home office, or roughly 16–26 m² when sun and insulation are kind. Seller areas of 20–26 m² are a ceiling. A large or heavily glazed room steps toward 12,000 BTU, about 3.5 kW. A single hose must go outside. A fixed split is notifiable building work unless a competent-person scheme installer self-certifies it.
Three typical situations, each with a recommendation from this comparison.
You need a portable this week and you cannot drill the building. The Air Pro AP-E6 has the largest review file, and buyers describe cooling a lounge or a bedroom in a heatwave. Several reviews say Alexa does not connect, while cooling itself still runs.
You will care more about noise and a window seal than about Wi-Fi. The HOMILEC HL-007 is the lowest portable price with watts and refrigerant printed, and a low fan speed is described as quieter while it still cools. Several reviews still call it very noisy.
You are comparing a portable around £400 with a fitted 2.6 kW split and the cost of an installer. The generic wall split lists an outdoor unit, an inverter and heat, at £599.99 for the hardware. Two ratings, and a 2.6 ton field that clashes with 9000 BTU, mean you book the installer before you pay.
The Air Pro AP-E6 is the top pick: £449.99, 3.9 from 62 reviews, with 1023 W, R290, class A and 23.5 kg stated. Buyers describe heatwave cooling, and the score is cut for Alexa and app failures, a 65 dB line, a hose that comes loose, and the price. The HOMILEC HL-007 is the best value at £299.99, with 900 W, R290, class A and 22 reviews. It is cut for noise, a leak, a failure at about four months, and support refused in a review. A 5.0 from one or two reviews stays off the top of the table. The wall split’s 22 dB line has no test method on the listing.
HOMILEC HL-007 9000 BTU
Lowest portable price here, at £299.99, with 900 W, R290, class A and 22 reviews you can read.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources and the Meaco page below. amazon.co.uk listings checked on 20 October 2026.
Expert source (DIY & tools): Charlie White (Charlie DIYte) (external profile) – public expert commentary used as a research source, not as a contributor to our pages.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices and star ratings are taken from those listings. We did not run a lab test.
