BLACK+DECKER Review UK 2026
Quick verdict
Score: 6.5/10
Best for: Moveable cooling in a heatwave without fitting a fixed unit, plus dehumidifying year-round
Not for: Anyone wanting silent running or the lowest possible electricity use - a fan is cheaper but doesn't truly cool
Bottom line: A practical portable air conditioner (12000 BTU, 3-in-1) for proper, portable cooling around the home.
The BLACK+DECKER BXAC40035GB is a portable air conditioner with a 12,000 BTU cooling capacity and 3-in-1 functionality for cooling, fan and dehumidifying. It is positioned as a single unit that can cover multiple comfort tasks, reducing the need for separate appliances.
Key specifications
| Feature | Details |
|---|---|
| Cooling output | 12,000 BTU |
| Modes | Cool, fan, dehumidify |
| Control | Wi-Fi/app |
| Colour | White |
Pros
- 12000 BTU of cooling power
- 3-in-1 (cool, fan, dehumidify)
- Wi-Fi/app control
- Proper cooling you can move between rooms
Cons
- Needs a window for the exhaust hose (unlike an air cooler)
- Uses more electricity than a fan
- Makes some compressor noise, and is bulky to store
Cooling Power (BTU)
With 12,000 BTU of cooling power, the BLACK+DECKER BXAC40035GB is designed to cool a room using its portable AC setup, so it suits situations where a fixed unit is not possible. The rated BTU figure indicates how much heat the unit can remove. The 3-in-1 functionality means cooling can be used alongside fan and dehumidifier modes, which can improve comfort as conditions change.
Room Size and Coverage
Room size and coverage for a portable air conditioner are often guided by its cooling capacity. For the BLACK+DECKER BXAC40035GB, that rating is 12,000 BTU, which indicates suitability for small to mid-size spaces where a portable unit is practical. Results depend on factors such as ceiling height, room layout, and insulation quality. For best performance, position the unit so airflow is not blocked, keep doors and windows mostly closed, and minimise disruptive drafts from other appliances and vents. Where a room is unusually large or poorly insulated, cooling can feel uneven and take longer to reach a consistent comfort level.
Modes and Dehumidifier Function
The BLACK+DECKER BXAC40035GB provides 3-in-1 operation, with cooling, fan mode, and dehumidification. The dehumidifier function is designed to remove moisture from the room, which can help maintain comfort in damp conditions without focusing solely on lowering the temperature. Switching to fan mode provides air circulation when airflow is the priority, which can reduce the need for continuous cooling.
Noise Level and Energy Use
Noise and energy use matter because portable air conditioners can affect sleep, phone calls, and general comfort, especially in smaller rooms. For the BLACK+DECKER BXAC40035GB, the brand and title confirm 12,000 BTU output and 3-in-1 cooling, fan, and dehumidifier functionality. Noise can vary by mode, because fan and compressor operation change with demand, and dehumidifier use can extend compressor runtime compared with cooling alone. Energy use depends on how long and how often the unit runs, and smart app control may help adjust settings if supported.
Installation, Hose and Setup
Installing the BLACK+DECKER BXAC40035GB is usually straightforward, but it still needs careful setup so the exhaust air is vented correctly and the unit can work efficiently. Place it on a flat, stable surface with clear space around the sides. Connect the hose to the outlet, then fit it to a window or vent kit using the included adapters if supplied. If heavier seals are available for the window or vent connection, they can help reduce warm air leaks. In dehumidifier mode, the unit must vent or drain as required, and the hose should be kept free of sharp bends.
Who Is This Portable Air Conditioner For?
Who is the BLACK+DECKER BXAC40035GB best suited for, and what kinds of spaces will it handle well? It suits people who want portable spot cooling, particularly where fixed air conditioning is impractical, such as bedrooms, small living rooms, or home offices. The 12,000 BTU cooling capacity is designed for moderate spaces, and the 3-in-1 modes - cool, fan, and dehumidify - cover different comfort needs across the day. It also suits users who want remote adjustments, since it includes Wi-Fi and app control.
Where to Buy in the UK
Where to buy in the UK for the BLACK+DECKER BXAC40035GB typically comes down to checking major retailers and UK electrical and home-improvement stores, where portable air conditioners are commonly stocked. Shoppers can search online for the exact model code BXAC40035GB, then compare listings that mention 12,000 BTU and 3-in-1 functions for cooling, fan and dehumidify. In-store checking also helps as availability can change and colours may vary. Since it is a Smart air conditioner with dehumidifier mode and app control, buyers should confirm the retailer notes Wi-Fi compatibility. Delivery and returns vary by seller.
Frequently Asked Questions
Is the BLACK+DECKER BXAC40035GB worth it?
For cooling a room in a heatwave without fitting a fixed unit, the BLACK+DECKER BXAC40035GB (12000 BTU) gives you proper, moveable cooling that a fan can't. Check the current Amazon UK price, as these spike in summer.
How much cooling power does the BLACK+DECKER BXAC40035GB have?
The BLACK+DECKER BXAC40035GB is rated at 12000 BTU. As a rough guide, around 5,000-7,000 BTU suits a small bedroom, 8,000-10,000 BTU a living room, and 12,000+ BTU larger or open-plan spaces.
How many BTU do I actually need?
Match BTU to room size: roughly 5,000-7,000 BTU for a small bedroom, 8,000-10,000 for an average living room, and 12,000+ for large or sunny rooms. Too few BTU won't cool the space; too many wastes money and can leave it clammy.
Does the BLACK+DECKER BXAC40035GB need a window or exhaust hose?
Yes - like all portable air conditioners, the BLACK+DECKER BXAC40035GB vents hot air out through an exhaust hose, which needs to reach a window (a window-sealing kit is usually included). This is normal and the key difference from an air cooler, which doesn't cool as effectively.
Can the BLACK+DECKER BXAC40035GB do more than just cool?
Yes - the BLACK+DECKER BXAC40035GB is a 3-in-1 (cool, fan, dehumidify) that also works as a fan and a dehumidifier, so it earns its space year-round, not just in summer.
Are portable air conditioners expensive to run?
They use more electricity than a fan, since they have a compressor like a fridge. Running cost depends on the wattage, how long you run it and your tariff - use it to cool a room then switch to a lower fan mode to keep costs down.
Where is the BLACK+DECKER BXAC40035GB best used?
The BLACK+DECKER BXAC40035GB suits any room where you want moveable cooling without a permanent installation - bedrooms, home offices and living rooms. You can wheel it between rooms, as long as each has a window for the exhaust hose.