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Clade’s air source heat pumps are part of our wider CO2 heat pump range, offering efficient low-carbon alternatives to the traditional fossil fuel powered heating systems. This renewable technology helps to maintain tight temperature control, lowering energy bills and the carbon footprint of the property. They are perfect for a range of commercial and domestic sectors.



The Oak is our mid-scale CO2 heat pump design. It is suitable for continuous operation and at higher heating capacities for large buildings or processes for example; swimming pools, food production, district heating and factories.
Designed and built to be fully serviceable.



The Beech is our largest CO2 heat pump, bespoke designed and manufactured for each project. Up to 1.4MW in a single unit and encompassing ground, air, water source as well as heat reclaim. Installed as separate evaporators and compressor stations with either glycol or refrigerant connections.



Low noise & easy to install – the 50KW Acer uses CO2 as its refrigerant and delivers high temperatures, 70 to 80 degrees, as well as the high performance associated with CO2.

It’s affordable, small and can be delivered quickly.

Clade Circle Colour


To give our heat pumps customers complete peace of mind. Following installation, commissioning and a 6 month run-in period the actual performance will be assessed against predicted performance. If the heat pump does not meet the guaranteed performance we will refund the cost of the heat pump and remove it from site.


An air source heat pump is a renewable technology that provides a genuine alternative heating system for any type of building, whether residential, commercial, industrial, in both urban and rural areas. It takes any warmth from the outside air and uses that to heat a building. Natural heat in the air is drawn into the system, compressed to increase the temperature, and then fed into the heating system of the home to provide warmth and to heat water. It doesn’t matter how cold it is outside, the pumps can still take warmth and transform it into clean energy for your property. The air source heat pump itself is powered by electricity but as the energy produced comes direct from the warmth of the sun it is a renewable heating system.

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It is important to the team here at Clade that we not only provide the highest quality of air source heat pumps for industrial, commercial and domestic projects, but that our customers are well looked after post-installation. Our heat pump services include thorough support at every stage of the process. This includes the high standard of design and manufacturing, through to installation and on-going maintenance. Our ethos is to be a market leader in the UK for new green technology, helping businesses and homes across the country to reduce their carbon footprint, take control of energy bills, and future-proof properties for efficient heating.


Our installation team is highly experienced at installing air source heat pumps to a range of property types.


Our installation team is highly experienced at installing air source heat pumps to a range of property types.


Clade looks after our customers with on-going maintenance and support for an installed air source heat pump.


The quality of the materials and standards of manufacturing used in producing our heat pump range ensures precision and efficiency for long-term performance.


Our support services include commissioning engineer attendance, 24/7 service engineering support and access to Clade’s technical helpdesk during the products’ warranty period and beyond.


With its internal Research & Development team based at Clade’s Technology Hub in Leeds the company is available to advise its customers on the latest legislative changes.


There are a few good reasons why you should consider switching to an air source heat pump to provide your heating and hot water. While heat pumps do use electricity to power the process, they produce no carbon whilst in operation. This makes it a low-carbon alternative to traditional fossil fuel heating systems.

They also work perfectly with existing renewable technologies and other systems that you have installed or are planning to install – such as solar PV panels, underfloor heating systems etc. Air source heat pumps have low running costs compared with other off-grid fuels, and they take up less space when compared to other sources. You might also be surprised to hear that there are some models of air source heat pumps that can also be used to cool homes during the hotter summer months.

Rowan Heat Pump 3


There are two different types of air source heat pump. An air-to-air heat pump provides heating by blowing warm air into your home. They use fans to circulate warm air throughout the home and do not heat water in the system. Air-to-air source heat pumps are more commonly known as air conditioning units.

This makes air-to-water systems the more popular option. Water is heated and then circulated throughout the home via radiators, underfloor heating systems, and are used to heat the water in the storage tank. If you have any questions about the correct model of air source heat pump for your business our expert team are here to advise.

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An air source heat pump is an efficient heating system option for a variety of residential applications. You might also be surprised to hear that they are effective even in cold temperatures and in the depths of winter. Whether you want to install a smaller air source heat pump for a small apartment in an urban environment or you have a large, detached house in the country, we can find the right model for your needs.

Alongside the heating systems, heat pumps are used to provide hot water for your needs. For modern technologies such as underfloor heating, our heat pump range provide the perfect solution to heat floors and keep you toasty warm this winter.


An air source heat pump works by absorbing outside air into a fluid and increasing the temperature to be spread throughout your heating systems. This outside air is blown over a network of tubes that have been filled with a refrigerant, warming it up and turning the liquid into a gas. After passing through a compressor, heat is added as the pressure increases.

This compressed hot gas is passed through a heat exchanger and transfers cool air or water to make it warmer. This is then circulated through your home into the applications that you have installed, as well as providing hot water. The refrigerant then condenses back into a cool liquid to begin the process all over again.

Oak Heat Pump

The Heat Pump Effect

Clade Website Flow Chart


Clade is the UKs leading manufacturer of natural refrigerant heat pumps. With significant R&D, field trials and a proven deployed portfolio of over 500 natural refrigerant appliances there are no other UK manufacturers that come close to our expertise and experience.

Operating on a national basis from our green manufacturing Technology Centre in Leeds and our Head Office in Bristol, which has achieved CEEQUAL status and the internationally recognised BREEAM Excellent standard, we design, manufacture, supply and maintain heat pumps and refrigeration around the world.

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“Over the past year TRIOS and Clade Engineering Solutions have worked closely together in delivering service to a range of retail and non-retail customers. Clade has proven to be a reliable partner and demonstrated its ability to react quickly and efficiently to customer requests and problems. Through system usage and great communication Clade has rapidly evolved as a partner of choice to TRIOS. The fact that Clade has both service and installation capabilities has given TRIOS confidence that we can rely on them in every situation, where our customers have a refrigeration or mechanical problem. Clade repeatedly demonstrates its customer focused credentials and continues to give great focus and service to TRIOS and our customers.”

Jeff Alden – Managing Director, Trios Group

Wm. Morrison Supermarkets Plc

“Clade have completed new installations on large stores, and refurbishment work within our main estate, and have many more planned in the future.

Their communication, efficiency and can do attitude make them a key strategic partner in our future within both M-Local and main estate. The key to their success with Morrisons is their transparency, and honesty. Nothing is hidden, and no conversations are off limits, they, as a team, are willing to bring new ideas to the table to make efficiencies, and also accept learnings from other teams to improve themselves.

I have absolutely no qualms in recommending them for any work, and hope that you consider them as the added benefit they can bring is invaluable.”

Tom Monaghan – Construction PM & Programme Manager, Wm Morrison Supermarket


“Clade have proved themselves to be a competent and diligent contractor for Marks and Spencer, their work has been delivered to a high standard with quality being the focus. Their deliver of M&S high profile stores has surpassed performance expectations. Clade has proved itself as a growing contractor with a bright future.”

Peter Garner – Marks & Spencer

CTS Shopfitting Ltd

“We have worked with Clade on numerous Co-op projects throughout many years and find them to be very professional and reliable with excellent communication both on and off site. The project management team work alongside ourselves and are very proactive when required.”

Martyn Clark – CTS Shopfitting Ltd

Key Property Solutions Ltd

“Thank you for the excellent work you did at M-Local Doncaster. It made a refreshing to change to come across a contractor who could adapt to change as speedily as yourselves and reacted pro-actively to anything that was required. I look forward to working with Clade again in the future.”

Lol Johansen – Key Property Solutions Ltd (Bowmer & Kirkland subsidiary)


“Clade Refrigeration (now Clade Engineering Solutions) has worked for The Co-operative Group for over 12 years. In this period they have delivered a large number of projects, some of these being high profile developments which have been installed to a very high standard indeed. Their willingness to help and Give support to the client, associated suppliers and the wider industry is noticeable, whilst they also take the time to give valuable feedback on new innovations and products. They have proved themselves in all instances to be a partner and a contractor that repeatedly delivers to the highest standards.”

Bill Watson – The Co-operative Group


Clade Engineering is able to provide heat pumps as either air, ground, or water source. The most suitable type of heat pump depends on several factors related to your property. Generally, air source heat pumps are the most popular because they have the fewest requirements to install. Any type of heat pump can provide hot water and heating to your building.

Heat pumps using CO2 refrigerant as the heat source are friendly to the environment because the CO2 they use stays contained within the appliance and does not get released into the atmosphere. Furthermore, the CO2 we use in our heat pumps has the lowest global warming potential (GWP) of 1 compared to 1000’s for other refrigerants which will all significantly reduce the carbon footprint of your building.

Clade are the industry leaders in heat pump technology. As the heat in buildings challenge became clearer, Clade began the R&D for a new range of heat pumps which would provide a solution for a growing market. The first heat pump was installed in a Co-Op store and achieved a staggering SCOP of 3.7. We have over 36 years of experience and all of our systems are designed and manufactured in the UK.

Our heat pumps meet environmental standards by using a natural refrigerant like CO2. It has a Global Warming Potential (GWP) of 1, which reduces both cost and emissions.

Clade offers a full start to finish heat pumps solution. Our team of engineers design your system, manufacture and supply your heat pumps from our product range, our installation team ensures your heat pump is fully functional and our after sales support team provides ongoing maintenance. You can pick and choose as many or as few of our services to suit your requirements.We ensure that your heat pump system continues to function. Our heat pumps can generate heat from 50kW to multi mega-watt, with a maximum water temperature of over 80 degrees Celsius and a minimum external air temperature of -20 degrees Celsius. Each of our heat pumps also comes with total cooling recovery to ensure a high quality of continued functionality.


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