Argo 12000 BTU Smart Portable Air Conditioner with Heating
Quiet, intelligent, and highly efficient—the Argo MiloEvoSilent 4-in-1 air conditioner is the ultimate home comfort solution. Designed to effortlessly regulate medium to large rooms up to 30 sqm (322 sqft) without dominating your floor space, it provides powerful cooling in summer, a cosy heating boost in winter, and a handy dehumidifier mode to banish damp and dry laundry faster.
Finished in a modern matte casing with a sleek silver accent, it features an incredible Class A+ energy rating, costing as little as £1.30 per day to run. With built-in smart Wi-Fi control, a dual-wrapped compressor for whisper-quiet operation, and motorised louvres, you get a premium, tailored climate with minimal running costs.
4-in-1 Year-Round Comfort
Perfect for spaces up to 30 sqm. Seamlessly switch between air conditioning, heating, an energy-saving 3-speed fan mode, and a powerful dehumidifier to keep your home feeling perfectly balanced and fresh all year round.
Whisper-Quiet Technology
Ideal for bedrooms and home offices. The innovative dual-wrapped compressor is heavily insulated with sound-absorbing materials, significantly minimising vibration to deliver powerful cooling at a remarkably low noise level.
Smart Smartphone Control
Take complete command from anywhere. Connect the unit to your home Wi-Fi and use your smartphone to adjust settings, monitor temperatures, and schedule routines before you even step through the front door.
Class A+ Energy Efficiency
Enjoy elite comfort without the high energy bills. Rated an impressive Class A+ for efficiency and utilising eco-friendly R290 refrigerant, this intelligent system can cost as little as £1.30 per day to run.
Motorised Air Distribution
Eliminate hot and cold spots. The motorised top louvres deliver a wide automatic oscillation, smoothly and evenly distributing air across the entire room. Alternatively, lock the louvres into a fixed position for a direct breeze.
Restful Sleep Mode
Experience a completely undisturbed night's sleep. Engaging Sleep Mode gradually adjusts the ambient temperature to match your body's natural resting state, whilst keeping operating noise to an absolute minimum.
Downloads
User manualWhat's in the Box
- 1 × Argo MiloEvoSilent Air Conditioning Unit
- 1 × Backlit LCD Remote Control
- 1 × 1.5m Flexible Exhaust Hose
- 1 × Sash Window Installation Kit
- 1 × Window Adapter
- 1 × Quick-Release Washable Air Filter (Pre-installed)
Key Dimensions & Specifications
- Dimensions (H×W×D): 694 × 423 × 348 mm
- Capacity: 3.5 kW Cooling / 2.9 kW Heating (12000 BTU)
- Airflow: 360 m³/h
- Energy Rating: Class A+ Efficiency
- Refrigerant: Eco-Friendly R290
- Noise Level: Max 65 dB(A) / Pressure 48-53 dB(A)
- Total Weight: 28.5 kg
Installation & Setup Advice
Quick & Easy Venting All portable air conditioners require warm exhaust air to be vented outside to cool your room effectively. The Argo MiloEvoSilent includes a 1.5-metre flexible exhaust hose and a sash window kit in the box, giving you the essentials to set up and start cooling in minutes, entirely tool-free.
UK Window Adaptability The included window kit is perfectly designed for sliding or sash windows, neatly blocking the gap. However, if your home features standard push-out casement windows (the most common type in the UK), we highly recommend adding a Universal Window Seal Kit to your order. This clever addition completely seals the gaps around your open window, vastly improving cooling efficiency and stopping warm outdoor air from creeping back in.
Effortless Everyday Maintenance Keeping your unit running at its best is remarkably simple. Thanks to automatic condensate evaporation in cooling mode, there is rarely any need to empty water tanks. Plus, the quick-release washable air filters ensure dust and allergens are easily trapped and rinsed away in seconds.
What stands out
This stylish 4-in-1 air conditioner is one impressive model. It packs enough power to cool or heat rooms up to 30 sqm (322 sqft) without taking up too much floor space. Switch to fan-only mode and control the output with the 3 fan speeds, the unit also has a dehumidifier mode to enable you to dry laundry faster or tackle damp and mould in your home. Best of all, it's smart! - So you can take control of all the functions from anywhere, at any time, using your smartphone.
With the simple and easy installation kit, set up your portable AC unit in minutes using the included hose and window kit.
The details
- Smooth & powerful airflow with low noise
- Great for bedrooms, home offices and any space where quieter operation matters
- Quieter cooling from a Dual Wrapped Compressor, insulated with sound absorbing materials minimising vibration without reducing cooling power
- A+ Energy Efficiency: pnly £1.30 per day*
- Modern look with a matte finish, silver accent strip and a clear backlit LCD display
- Motorised top louvers delivers wide automatic oscillation for better air distribution, or can be set to a fixed position
- Easy control options including a soft touch panel, backlit LCD remote or via app control
- Night time comfort with Sleep Mode, reducing noise and adjusting temperature gradually
- Memory function automatically restores your last settings after a power cut
- Easy maintenance with a washable, quick release air filter.
- No drain cooling thanks to automatic condensate evaporation in Cooling Mode
- Designed for portability with multi directional wheels and integrated side handles.
Essential Info
- Daily Cost: £1.30*
- Airflow: 360m³ per hour
- Cooling/Heating Capacity: 3.50/2.9 KW
- Eco-Friendly R290 Cooling
- Removable filters for easy cleaning
- Digital LED display
- Tube length:1.5meters
- Energy Efficiency Class A
- Sound Power Level: 65 dB(A)
- Sound Pressure Level at 1 m (Low-High Fan): 48-53 dB(A)
- Input Power: 220-240V-50Hz
- Rated Power Input: Cooling 1.35KW/Heating 1.11KW
- Dimension: W423xH694xD348mm
- Weight: 28.5Kg
*Based on typical daily use of 4 hours
Included: exhaust hose, window adapter and a kit for sash window installation
Downloads
User Manual »








Question from Rupert: Asked on 18/06/2026 what is the diameter of the hose for this unit ??
Hi Rupert,The Argo MILO EVOSILENT 12HPW portable air conditioner uses a 150 mm (6-inch) diameter exhaust hose.Thanks!
Question from Tracy: Asked on 15/06/2026 Can you put the hose into a loft space rather than out the window?
HI, The hose must be vented externally. Venting into a loft, attic, or any internal void is not recommended and will significantly reduce performance and may risk overheating or damage.
Thank you.