How Does Our Water Cooled Air Conditioning Work?

Water cooled air conditioning systems operate in a similar way to conventional split-type air conditioning systems that have an external 'unit'. However, rather than using the outside air to cool the heated gas refrigerant, our system is designed to use water instead.

This means that the system is fully internal as it does not need an outdoor condenser, just a water supply and waste drain to connect to the indoor condenser.

Features of Water Cooled Air Conditioning:

An icon of air conditioning pulling in warm air from a room

Compact Indoor Condenser Design

Our water cooled condenser unit is purposefully designed to be concealed out of view for aesthetic reasons and space efficiency. Our smallest condenser measures just 500mm x 500mm x 295mm, allowing it to be conveniently stored in cupboards or under a sink. This makes it ideal for properties where space is at a premium.

Icon of existing pipework

Integrates With Existing Pipework

Our air conditioning systems utilise the latest refrigerant pipework, all of which is contained within your property. This means nothing needs to be installed externally and we don’t need access to the outside of your property to fit your system.

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WiFi
Enabled

All our indoor units are WiFi enabled allowing you to control your air conditioning from your phone. This enables you to set the temperature remotely so you'll never have to worry about leaving your air conditioning on or having to arrive home to a hot and stuffy apartment.

Icon for customisable indoor unit options

Customisable Indoor Unit Options

Just like with a conventional split system, our water cooled condenser units can be connected to a range of different indoor units. This includes multiple customisable wall unit options, as well as floor mounted and ducted units hidden behind a grill, as long as you have sufficient void space above your ceiling.

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Quiet Operation
(19dBa)

Our internal wall-mounted room units are the quietest on the market, with our Urban Designer model operating at just 19dBa. While our condensers operate at a similar volume to a quiet washing machine (additional noise absorption is available by lining the inside of a utility-cupboard door with acoustic egg-shell foam).

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Energy Efficient
(AAA Rated)

Our internal water cooled air conditioning systems are rated AAA for electrical energy efficiency.

Where To Install A Water Cooled Air Conditioning System?

Our water cooled air conditioning solutions are able to be installed in a variety of residential and small commercial properties:

Modern brick apartment block with balconies and large windows for urban living.

Apartments

Ideal for properties with restrictions such as apartments where an outdoor condenser unit is not possible.

Listed Georgian terraced houses with protected historic architecture and design.

Listed Buildings

If you live in a Grade II listed building, an internal unit can be installed with no planning permission required.

Image of street with small commercial buildings on

Small Commercial Buildings

Water cooled air conditioning is also an effective solution for office spaces, retail spaces and server rooms with restrictions.

The Benefits Of Our Water Cooled Air Conditioning Solutions

01

No external unit or planning permission required

Our fully internal water cooled systems have no external elements and therefore remove the need for planning permission. They are the only integrated solution for properties where external modifications are not permitted.

02

Maintains the visual appeal of your property

Our condensers and wall units blend seamlessly into your property's design, ensuring your property’s aesthetics remain untouched.

03

Cool multiple rooms simultaneously

One of our water cooled condensers has the capacity to cool up to 8 rooms at once!

04

Control the temperature of your property from anywhere

With the convenience of controlling your air conditioning from your phone, never worry about returning to an uncomfortably hot home.

05

Adds to your property's value and rentability

Investing in our systems improves your property's rentability and value, potentially leading to a positive return on investment.

06

Quick installation with minimal disruption

There is minimal disruption during installation by our F-gas registered engineers.

07

Enjoy a cool and peaceful environment

Our quiet air conditioning systems not only cool you effectively, but also enable you to focus, relax, and sleep undisturbed.

08

Save on energy costs

With an AAA rating for electrical energy efficiency, you can stay cool without worrying about skyrocketing electricity bills.

09

Peace of mind 5 year warranty cover

All of our systems come with a full parts and labour warranty. We also have a dedicated aftercare team so if anything goes wrong you are not left on your own.

10

All the benefits of conventional air conditioning without the limitations

Our systems don’t compromise on performance, as they offer equivalent cooling efficiency to conventional air conditioning units.

As featured in

Our Product Range

We provide Wi-Fi-enabled water cooled air conditioning solutions that you can control using a tablet or mobile device. Whether you’re at home or out and about, as long as you’re connected to the internet, you can control your water cooled air conditioning system.

Urban Signature

With the Urban Signature range, our internal water cooled condenser is paired with Toshiba's Seiya wall-mounted units. These compact, understated units deliver A++ energy efficiency and come with Wi-Fi connectivity as standard, so you can control your system from anywhere via your smartphone or tablet.

An icon of air conditioning pulling in warm air from a room

Urban Signature Wall Unit

A compact flat-panel design in white.

Water cooled air conditioning system icon

Water Cooled Condenser

An Urban Cooling fully internal Water Cooled condenser unit.

Guide Prices:

1
Room approx
£4,600
2
Rooms approx
£8,380
3
Rooms approx
£11,700
4
Rooms approx
£14,900
5
Rooms approx
£17,600

Urban Ducted

Our Urban Ducted range connects our water cooled condensers to a discreet ducted unit, concealed within your ceiling void and hidden behind a modern, minimalist grille. With no visible wall unit, it's the ideal choice for maintaining a completely seamless look throughout your property, without compromising on cooling performance.

An icon of air conditioning pulling in warm air from a room

Urban Ducted Unit

Maintain a seamless look with a ducted unit hidden behind a modern and minimalist grill.

Water cooled air conditioning system icon

Water Cooled Condenser

An Urban Cooling fully internal Water Cooled condenser unit.

Image of a ducted grill wall unit.

Guide Prices:

Our Urban Ducted units are available at an additional cost of £1,200 per room. Please note that a ceiling void or bulkhead of at least 250mm is required in order to accommodate a ducted unit.

Prices Start from Just £4,600

Our range of water cooled air conditioning solutions are all competitively priced within the market. If you find an like-for-like solution at a lower price, just let us know and we’ll match their price!

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Three Misconceptions about Water Cooled Air Conditioning Systems

We understand that this may be the first time you've heard of water cooled air conditioning, and nobody buys something they've never heard of without asking a few questions first. So here are three of the questions that come up in most conversations with customers...

What happens if a pipe bursts inside my property?

Only refrigerant gas flows through the pipework connecting the units. Water never leaves the condenser, and no water passes through the pipes connecting the wall units.

Read the full answer

If one of the pipes connecting the units were damaged, the only thing released would be refrigerant, which is harmless and evaporates into the air. There would be no water leeks or no water damage, as there is no water in the pipes.

All of our water cooled condensers are manufactured to the highest standards, with all internal components fully brazed to minimise the risk of leaks. In practice this makes the likelihood of a water leak similar to that of a washing machine or dishwasher already installed in your home.

Does it cool as well as a conventional system with an external unit?

Yes. A water cooled system will cool your room to the same temperature as a conventional system, typically around 18°C, and on the hottest days it can actually be more effective.

Read the full answer

Our condensers provide a cooling capacity of up to 15kW and a cooling power input of up to 5kW, with one condenser able to cool up to 5 rooms at once. That makes our water cooled systems as powerful and as efficient as any conventional air conditioning with an external condenser.


On the hottest days, a water cooled system can actually be more effective than a conventional one. A conventional system has to reject heat into the outside air, which becomes harder the hotter that air gets. When outside temperatures are above 30°C, the water entering your property typically stays at around 20°C or below, therefore our system can remove heat more efficiently on the days you need it most.

Is the technology proven, and are parts available?

We have been installing fully internal water cooled air conditioning systems for over 10 years and have completed more than 1,000 successful installations, from city-centre one-bed apartments to listed buildings valued at over £5 million.

Read the full answer

If you look through our 430+ reviews, you’ll see how we have transformed the properties of many customers who were once in the same position as you.


Our units are designed and assembled in the UK to UKCA standards. We hold parts, and every system we install is fitted and maintained by our own engineers and dedicated aftercare team.


Like any air conditioning system, ours need servicing to operate efficiently and last as long as possible, and we recommend a professional service once a year. Regular maintenance prevents breakdowns, improves performance and keeps the system running at peak efficiency.

Start Your Enquiry Today.

Start your no-obligation enquiry today, and one of our expert team will get in touch within 24 hours* to discuss the best way for you to get cool and comfortable.

If you want to talk to one of our experts now, then call 020 8080 9708

“No pressure, no pushy salesperson, no obligation, just expert help and honest advice.”

* Our experts are available 8:30am to 4:30pm Monday to Friday excluding Bank Holidays.
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Frequently Asked Questions

Learn more about our Water Cooled system from our founders, Tony and Mark

Read more FAQs about our internal water-cooled air conditioning systems below.

How does internal air conditioning compare to conventional air conditioning?

Our wide range of internal water air conditioning systems provide a cooling capacity of up to 15kw and a cooling power input of up to 5kw. This makes our internal systems as powerful and efficient as any conventional air conditioning unit.

Our internal water cooled air conditioner can supply up to 8 rooms with cool air at the specified desired temperature, easily controlled with our smartphone app or remote.

Category:
Water Cooled System
Do the systems heat as well as cool?

Our water cooled system does provide heating; however, we advise only using this as a backup and not a primary source of heating for your property.

Category:
Water Cooled System
Do I need to get planning permission to have a water cooled air conditioning system installed?

If you're wondering, do you need planning permission for air conditioning?—the answer is no, not with our fully internal water cooled air conditioning systems. Because they don’t require an external unit or any changes to the exterior of your property, planning permission isn't necessary. This makes the system ideal for apartments, listed buildings and properties located within conservation areas, as it doesn't have an external unit and no external modification to the property are required.

Category:
Water Cooled System
How much water does the system use?

A common question we get is: how much water does air conditioning use? The exact amount is actually very hard to determine as usage depends on the following variable factors.

Setpoint temperature: One of these factors is the setpoint temperature of the room that is being air conditioned. This is because more water will be required to bring the room down to say, 18degC than it would if it was set to our recommendation of 22 - 23degC.

Outdoor air temperature: The outdoor air temperature is also going to play an important role in the amount of water consumption. The hotter it is outside the more heat is being transferred from the outdoor air to the cooler room being air conditioned.

Building Materials: Another factor is how your property has been constructed and the type of materials that have been used. A building with a lot of glass and thermal insulation will absorb external heat and retain it in the building for longer.

Input water temperature: As we are using cold water to cool the hot refrigerant, the colder the water that comes into the system, the less that will be required to remove the latent heat from the refrigerant.

Usage: Probably the most obvious is the number of hours the unit is operating for someone who leaves the air conditioning system on all day will require a lot more water than someone that switches the system on for a few hours to cool a bedroom before going to bed.

To give you an idea - an average sized bedroom of, 5m x 4m, with a normal amount of glass windows, well insulated to modern building regs, an outdoor temperature of 27degrees C and an incoming water supply of 12degC - would require a 2kw indoor unit, as well as the condenser unit. This condenser would give out a water flow of 40 litres per hour to cool the room to 22 degrees. 

Our condenser units only use water when the condenser is running to provide cooling. When the room has reached the setpoint temperature of 22 - 23 degC the condenser will switch off. To maintain the setpoint temperature of the room or systems normally only take 20 – 30 minutes per hour of operation, so water consumption will drop when the setpoint temperature is simply being maintained.

Category:
Water
Can you recycle the used water?

As the wastewater has been heated up to around 45-50degC - it makes sense to try and re-use the heated water. We are able to connect up to a large hot water storage cylinder to the unit, so the heated water can be used for a shower or bath. However, this is not possible in a lot of cases as hot water cylinders do take up a lot of room and they will also add to the cost of installation.

If your building has a communal heating system and or a chilled water circuit then it is possible for our water-cooled condenser unit to connect to these without any waste water at all. This would depend on what water flow temperatures are running through these systems.

Category:
Water
How is an internal water cooled system installed?

The installation process for this system is straightforward and takes on average one day per indoor unit.

Firstly, we install the condenser and connect it to your water mains, drainage and electrical supply. Its compact design makes it easy to conceal in a utility room or cupboard.

Next the indoor units (which can be wall mounted, floor mounted or ducted) are installed in each room which requires cooling. The optimal locations are established at survey stage, ensuring the property is cooled in the most efficient way.

Category:
Installation
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Still have a question?

Do you still have a question about our water cooled air conditioning systems or our services in general? Please call us on 020 8080 9708.

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  • One of our team will contact you shortly to discuss your enquiry. The phone number we will call you on is 020 8080 9709. We suggest saving this number to your phone contacts so you recognise us when we call you.
  • During the call we'll address any questions you have regarding our air conditioning solutions.
  • To provide a quote, we'll arrange a convenient time for one of our qualified engineers to survey your property. This free no-obligation survey can be on-site or via a video call and will give you the option to ask the surveyor any further questions you may have. There's also an option of an online self-survey that enables us to produce a quicker quote.

Do you have an urgent question?

Take a look at our Frequently Asked Questions page or if you would rather speak to one of our team, give us a call on 020 8080 9709, and we'll be happy to help.