When the London heat becomes unbearable, you need a powerful, effective air conditioning solution. But for many homeowners and businesses in apartments, listed buildings, or conservation areas, the prospect of installing a bulky, noisy external condenser box is simply a non-starter. This is where the Vision 4.1kW changes the game.
The Vision 4.1kW is a state-of-the-art, self-contained air conditioning unit that provides exceptional cooling and heating performance without any external components. As London’s leading specialists in condenserless technology, Innovative Air provides a complete, end-to-end supply and installation service, delivering powerful climate control with minimal fuss and maximum discretion.
Forget planning permission headaches and compromises on your building’s aesthetic. The Vision 4.1kW offers a seamless, powerful, and intelligent solution for modern comfort.
Choosing the right partner to install your air conditioning is as important as choosing the unit itself. At Innovative Air, we are not generalists; we are award-winning specialists focused exclusively on “no outside box” climate solutions. Formerly EHGE Cool Sleep, our reputation is built on over five years of dedicated experience and a perfect five-star rating across more than 32 Google Reviews.
Our in-house team of F-Gas certified engineers operates across London and the South East, including Surrey and Kent. We have become the go-to installer for complex projects, from luxury apartments in Kensington to sensitive heritage properties. Our expert-led, practical approach has even earned us the trust of demanding clients like TFL (Transport for London), who rely on us for climate control in critical environments.
When you choose Innovative Air, you choose a single, accountable partner for the entire project, delivering unbeatable value through our direct supplier-installer model.
Let’s make something great work together. Contact us
Rated excellent by over 32 happy clients, but we've done easily well over 1000 installations.
Recognised for our expertise in innovative climate solutions.
The leading supplier-installer of condenserless AC in the UK.
Approved and trusted to install systems in demanding Transport for London environments.
The Vision 4.1kW, distributed by the renowned British company Powrmatic, is the most powerful condenserless unit in its class. It’s engineered to deliver robust performance for larger rooms and open-plan living areas where smaller units would struggle.
With a formidable 4.1kW of cooling power (and 4.0kW of heating), this unit is designed for spaces up to 40 square metres. It’s the ideal choice for:
This level of output ensures your room reaches the desired temperature quickly and maintains it effortlessly, even during the most intense summer heatwaves.
The Vision 4.1kW operates using R32 refrigerant. This modern coolant has a Global Warming Potential (GWP) that is significantly lower than older refrigerants like R410A. By choosing this unit, you’re not only investing in your comfort but also making a more environmentally responsible choice. All our installations are carried out by F-Gas Certified engineers, guaranteeing compliance with the latest UK environmental and safety standards.
Take complete control of your indoor climate from anywhere. The Vision 4.1kW comes with integrated Wi-Fi connectivity as standard. The intuitive smartphone app allows you to:
Imagine cooling your apartment on the journey home from work or ensuring your office is comfortable before you arrive. This smart functionality puts efficiency and convenience at your fingertips.
A traditional “split” air conditioner has an indoor unit and a separate outdoor condenser box connected by pipework. While effective, they are often prohibited in apartment blocks and conservation areas. The Vision 4.1kW packs the entire system into one sleek indoor unit.
| Feature | Vision 4.1kW (Condenserless) | Traditional Split System |
|---|---|---|
| External Unit | None. Just two discreet grilles. | Requires a large, noisy outdoor box. |
| Planning Permission | Almost never required. | Often required, especially in London. |
| Installation | Simple, single-day internal works. | Complex, requires pipe runs and external access. |
| Ideal For | Apartments, listed buildings, restricted areas. | Houses with private outdoor space. |
| Total Cost of Ownership | Often lower due to simplified installation and no planning fees. | Higher initial cost due to complex installation. |
Our “supply and install” promise is simple: we handle everything. From your initial enquiry to the final demonstration, our in-house team manages the entire process, ensuring a flawless result with our 5-Star Guarantee. We are not just suppliers; we are installation experts.
We respect your time and your property. For a standard installation, our highly efficient workflow means we are typically in and out within a single day. Our process involves:
We begin by laying down dust sheets and protecting all surfaces in the work area.
Our engineers use a specialised wet-drilling rig with integrated dust extraction to create the two 202mm openings for the air intake and exhaust. This method is clean, precise, and minimises disruption.
The Vision unit is securely mounted to the internal wall.
The external louvred grilles are fitted flush to the outside wall.
We "make good" any internal plasterwork around the unit for a perfect finish.
Our fixed-price quote is fully inclusive. You will never be surprised by hidden costs for electricians or builders. Our service automatically includes:
This is so that the unit is installed properly and well-presented from the outside.
Connecting the unit to a suitable fused spur from a nearby power source.
We'll re-plaster the area, sand it and repaint it, so you won't even know we've been there.
We'll ensure you are comfortable with the controls before we leave, and we're always available for after-sales support. Whatever the issue, let us know.
This comprehensive approach saves you the time, cost, and hassle of coordinating multiple tradespeople.
We are so confident in the quality of our installation work that we guarantee it. This guarantee covers every aspect of our fitting, from the electrical connections to the integrity of the wall penetrations. It's our promise of long-term peace of mind. The Vision 4.1kW unit itself comes with a comprehensive manufacturer's warranty, ensuring your entire investment is protected. Get in touch to find out more about our guarantees.
The Vision Titan, powered by Powrmatic, is engineered for superior performance and efficiency.
For property owners in London’s many conservation areas or in listed buildings, installing air conditioning has long been a challenge. The Vision 4.1kW provides the definitive solution.
Because there is no external condenser unit, the system is considered a “through-the-wall” installation. In most cases, this exempts it from planning permission, as it has a minimal impact on the building’s external appearance. The two small external grilles can often be painted to match the brickwork or render, making them virtually invisible from street level.
Our team has extensive experience navigating the specific requirements of heritage properties. We can advise on the most discreet placement of the unit and grilles to satisfy conservation officers and residents’ associations. This expertise makes us the preferred installer for properties where preserving architectural integrity is paramount.
In the vast majority of cases, no. As there is no external condenser unit, the installation does not typically require planning permission. This makes it the perfect solution for apartments and other properties with restrictions. For listed buildings, while planning permission is not usually needed for the unit itself, Listed Building Consent may be required for making openings in the fabric of the building. We can provide expert guidance on this during our free site survey.
Our engineers use a professional wet-core drill with dust extraction to create two neat 202mm diameter holes through the external wall. This process is precise and minimises mess. We then install ducting and fit discreet, paintable louvred grilles on the outside, which sit almost flush with the wall.
Yes. The Vision 4.1kW is a reverse-cycle heat pump, providing 4.0kW of highly efficient heating. It's an excellent way to provide supplementary warmth during autumn and spring, often more cost-effectively than central heating for a single room. It offers a complete, year-round climate control solution.
The unit is designed to evaporate and expel most of the condensate water (moisture collected from the air) out through the external exhaust duct. In extremely humid conditions, a small amount of excess may be produced, which is collected in an internal tray. The unit will alert you if this needs emptying, though it is a rare occurrence in the UK climate.
It's recommended to service your AC at least once every 6 months to ensure optimal performance, better energy efficiency, and a longer lifespan.
Installation in a basement is possible, provided it has an external wall to the outside for the two ducts. The ducts cannot be extended over long distances, so the unit must be sited directly on a wall that leads to open air. We can confirm suitability during a site survey.
The Vision 4.1kW is remarkably quiet for its power. On its lowest fan setting, the sound level is around 34 dB(A), which is comparable to a whisper or a quiet library. This is significantly quieter and more effective than a standard portable fan, which simply circulates warm air. The unit offers powerful cooling without intrusive noise.
Posted on Adam SingerTrustindex verifies that the original source of the review is Google. Danny installed AC units in my flat in the bedrooms and the living room. Very happy with the service and the installations. There was quite a lot of drilling to get through concrete walls and he left the flat very clean.Posted on gary parravaniTrustindex verifies that the original source of the review is Google. Best cooling, best installation and best sleep ive ever had!Posted on Andrew RipleyTrustindex verifies that the original source of the review is Google. Danny was very helpful from start to finish. He even installed the air con unit on a Sunday due to an issue I had on the Saturday, very accommodating. The installation was very professional and Danny even tided up a few other things I had issues with. Looking forward to using the unit once we move back home. Would highly recommendPosted on Mohammed AhmedTrustindex verifies that the original source of the review is Google. Fantastic work done thanks DannyPosted on Barry SmithTrustindex verifies that the original source of the review is Google. Dan and Carl did an excellent job. On completion left the site clean and tidy, very professional. Have no hesitation in recommending this company.Posted on Adam WalkerTrustindex verifies that the original source of the review is Google. Thank you very much to Dan and Tony for all your hard work on Saturday. My wife was very impressed with how clean and tidy you both were, so thank you. Amazed at how clean it all was after two huge holes drilled through the wall. Vision unit looks amazing and is so super quiet. Almost looking forward to it getting hot now. Cannot say how impressed we are with Cool Sleep nothing was to much trouble and they went above and beyond. A real credit to the profession.Posted on D I • A L DirectorsTrustindex verifies that the original source of the review is Google. Extremely professional and trustworthy.Posted on Dominic JohnsonTrustindex verifies that the original source of the review is Google. Dan and his team were excellent, from the initial consultation to the installation, I would highly recommend using this company. The unit looks great too.Posted on PeterTrustindex verifies that the original source of the review is Google. Dan provided exceptional service during our AC installation. His expertise was evident throughout the process, and he took great care to ensure that the unit was not only functional but also aesthetically pleasing. The AC operates efficiently and is impressively quiet, making it possible to comfortably sleep in the same room while it's running.Posted on Steve NashTrustindex verifies that the original source of the review is Google. With the heatwaves in summer our bedroom was unbearably hot at night, so my wife and I looked around for a solution. Our house is in a conservation area so we wanted to avoid having a big air-conditioning box on the outside. We came across CoolSleep where the unit is on the inside. We got a quote, which was less than we expected, and Dan and his assistant came to install it. We are very impressed with how neat and quiet the unit is, which can either cool our bedroom, or provide heat if needed. The controls are simple to use. Dan did an excellent job, he gave us various options re exact location, finish, etc., and cleared up very well. We certainly recommend CoolSleep.
Specialists in supply and installation of condenserless air conditioning systems for apartments, listed building, homes in conservation areas, and commercial premises.
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