Water Cooled Air Conditioning

Pioneers of Water Cooled Air conditioner

Water Cooled Air Conditioning With Internal Condenser (no external unit)

It’s common in central London to be told you cannot have air conditioning with an outside condenser due to restrictions on your property. Our self-contained and water cooled internal condenser offers the perfect solution. 

A water cooled system requires no planning permission and is suitable for installation in apartments, listed buildings and properties with limited space.

Our water-cooled units can be installed in any type of room to match your style and needs. We offer a free consultation to help you assess what unit would work for your property’

features of water cooled air conditioning systems
bedroom air conditioning

No Outside Units

Ideal for listed buildings, apartments, offices and shop units within shopping centres, where an outside condenser box or external vents are unsuitable.

Condenser Hidden

The condensing unit is hidden within the property and uses mains water to condense refrigerant and absorb the heat drawn from the space.

Low Noise + WiFi Control

Low noise output and Wi-Fi enabled air conditioning. No planning permission required, so you can enjoy whatever the British weather.

More features of water cooled air conditioning systems

pioneers of the water cooled internal condenser in the uk

Since starting in 2002, ACS Installations has offered the best air conditioning products to London and UK based clients.

We aim to understand your needs so we can provide you with the right solution. If you are looking for an internal air conditioned system, we should be your first choice. 

We have installed hundreds of internal condensers all over London and the home counties.

What our Clients say?
Service was great, they came right away and fixed my air conditioner, and they were friendly and honest, I'm totally satisfied!
Leonie Agosto
ACS Client

Our water cooled air conditioning units


  • Reduced Water Consumption
  • Class A+++/A++
  • Gas R32
  • Maximum Silence
  • Full DC Inverter + H2O Inverter
Frequently Asked Questions about our water cooled internal condenser

Some of your questions about our water based air conditioner answered.

Yes, installing a water cooled air conditioning systems or through the wall air conditioning is the only option you have in a listed or restricted property. Contact us if you would like to discuss getting a water based AC in your home.

In most cases no, a water based AC unit has the internal condenser hidden in your own home so there is no need for permission.

A typical single split type AC unit will take 1-2 days to install. We can give you a good estimate if you contact us and inform us about your property and what you require.

Modern units are very quiet. In the workplace, you rarely notice them while in bedrooms at night time certain specific night set back settings slow the fans down to reduce the cooling requirement in line with falling ambient temperatures.

The electrical power consumption of an average size AC system will be little more than a domestic fridge. The cost of the water consumption element depends on how and what you pay for your water, and indeed the usage characteristics of the user. Water consumption rates vary on unit size and our specialists can advise you according to your requirements.

Air conditioning works by way of transferring heat from the air inside a room into the internal gas and then pumped along the pipework to an outdoor unit where the gas transfers the heat to the external air. The heat exchange process happens when the internal air is passed over a heat exchanger coil called an evaporator. Inside this evaporator is refrigerant that boils off at a very low temperature making the coil very cold. When the warm air passes over it then heat is absorbed from the air into the coil. The reverse happens with the heat exchanger in the outdoor unit.

In a water based air conditioners, water is used throughout the system. There are some water based air conditioning systems in the market, such as evaporative coolers, but they are not as efficient as a traditional air conditioning system.

A water cooled system, which we offer is a traditional AC system but with the addition of water use. The features we list above are not available through the other water based system.

Contact our specialist team

Call 020 8669 1112, email enquiries@acs-installations.co.uk or fill out the form below.