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Go Geothermal announces new CTC EcoAir C100 series heat pump

Louise Frohlich
Written By
Tamara Birch, senior writer, The Eco Experts
Reviewed By
Published on 28 January 2026
  • The new CTC EcoAir C100 heat pump range includes four models 
  • CTC has over a century of manufacturing heritage and specialises in low-carbon technology
  • Its heat pumps are highly efficient and have very low Global Warming Potential
The heat pumps are for both residential and commercial use. Image credit: CTC

Heating equipment supplier Go Geothermal has unveiled a series of new CTC EcoAir C100 heat pumps

The technology has been developed by manufacturer CTC, and includes four models: the C106, C108, C112, and C116. The three-phase heat pumps are available in 8 kW, 12 kW and 16 kW models, and the single phase is available as a 6kW model. 

The range combines low-carbon footprint and powerful performance to deliver a comprehensive energy efficiency and heating performance for properties of all sizes.

Darran Burrage, commercial director at Go Geothermal, said the new heat pumps will help the company “assist more customers wanting to decarbonise their homes,” without having to compromise on quality.

“The 16 kW, single fan unit allows us to reach the semi commercial sector as well as larger domestic properties with multiple units being able to be cascaded,” he said.

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CTC’s commitment to sustainability is shown in the energy efficiency class  ratings achieved by this new range. The C112 and C116 models received A+++ energy efficiency class ratings (W35/W55 A+++ to D) and C106 and C108 received A++. 

All units operate on a standard 220-240V~50Hz electrical supply, range from 7.05 kW to 15.90 kW,  and use climate-friendly R290 refrigerant charges with CO2 equivalents of  just 0.000010 – 0.000032 tonnes. The heat pumps can operate in outdoor temperatures of down to  -22°C.

The Seasonal Coefficient of Performance (SCOP) figures are impressive, with the C116 delivering a SCOP of 6.67/5.00 in warm climate testing, and the C106 delivering a 4.26/3.31 in cold weather tests.  A good SCOP is typically 3.5 or higher, with 4.0+ considered highly efficient.

The heat pump units are available in four sizes – Image credit: ISH

In terms of sizing, the units are considerably compact compared to other heat pumps, starting at 458 (H) × 914 (W) × 708 (D) mm for the C106, to 488 (H) × 1204 (W) × 1,384 (D) mm for the C116. The packaged weights are 70kg and 165kg respectively. For properties with limited external space, the smaller heat pump is ideal. Regarding aesthetics, the CTC EcoAir C100 range is available in a matt black finish.

A common misconception about heat pumps is that they’re too noisy. On the EcoAir C100 series, the sound ranges from 48-52dB(A). From a five metre distance, sound pressure measures 29-33 dB(A), ensuring minimal disturbance to household occupants and neighbours.

CTC is a Swedish manufacturer with over a century of manufacturing heritage, specialising in low-carbon technology with an exceptionally low Global Warming Potential (GWP). They are committed to “ building a sustainable, fossil-free future,” with a philosophy of not just creating heat pumps, but comfort and reliability too.  

Supporting the launch, Go Geothermal is bringing its specialist expertise to offer technical support and next-day delivery, as well as training programmes for installers. Founded in 2006, it is the leading provider of ground and air source heat pumps in the UK, and is committed to ethical sourcing and dependable service so customers receive the highest level of service. 

All models feature IP24 ingress protection, where they’re protected against solid objects larger than 12.5mm and splashing water from any direction. This makes them suitable for external installation, and they will be installed by certified technicians. 

Go Geothermal offers a 24-hour quotation turnaround with full AutoCAD services, to create, edit, and analyze a 3D model of customer houses and advise where a heat pump should be installed. This ensures a swift process from start to finish, guaranteeing customers a quick entry into the world of low-carbon technology.

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Written By

Louise Frohlich

Joining Eco Experts in April 2024 as Editorial Assistant, Louise has a keen interest in low-carbon technology and enjoys writing about anything sustainability related.

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Reviewed By

Tamara Birch, senior writer, The Eco Experts

Tamara is a journalist with more than six years experience writing about environmental topics. This includes advising small businesses on cost-effective ways tom become more sustainable, from installing to solar panels and heat pumps and reducing waste. She has used her journalist and research skills to become highly knowledgeable on sustainable initiatives, issues, and solutions to help consumers do their bit for the environment – all while reducing monthly costs. Now, she’s using this experience to advise homeowners on the benefits of installing low-carbon technologies. She is also qualified in offering innovative initiatives to improve sustainability practices in businesses, from advertising to marketing and publishing.

Her passion for sustainability and eco-friendly solutions stems from a long obsession with nature and animals and ensuring they feel looked after. In her free time, Tamara enjoys reading fantasy novels, visiting the gym, and going on long walks in new areas.

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