About Minus7

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An industry leading, award-winning designer and manufacturer of building-integrated renewable heating systems

People are taking notice of Minus7 as a company that chases seemingly crazy ideas and overcomes seemingly invincible obstacles to put them into action.  A company that offers the most innovative of all renewable heating technologies available today and is constantly pushing the boundaries of what can be achieved in the energy market.


Why do people choose Minus7?

We build long term relationships with our clients –  helping housing associations, developers, architects and innovators to award-winning  success


We design and manufacture award-winning British technology –  A unique patented hybrid system that delivers heat, hot water and energy storage 24/7 365 days of the year


Proven to increase the value of new-builds and retrofits – our in-house design, installation and maintenance teams nurture your project through every stage of the process


We provide clean, consistent and affordable energy – Minus7 systems harvest energy efficiently down to temperatures of -7ºC and below


Expert knowledge in developing world first hybrid systems and thought leaders in renewable energy – We update you with industry news, views and insights


See the results for yourself – Remote site monitoring ensures your system is working efficiently and provides complete transparency of how much energy is generated, used and stored


One ground-breaking decision after another. 


With Minus7, priority is given to what really matters – delivering a consistent, comfortable temperature that is affordable and easy to maintain from renewable sources.


To achieve these results, Minus7 has had to turn the traditional understanding of heating on its head and overcome a legacy of seemingly unbeatable barriers. The evolution and success of Minus7’s technology has only been possible because of its unique mindset which forms an integral part of Minus7’s corporate identity. 


It is this innovative way of thinking about how to deliver heat and a vision to create truly sustainable affordable warmth that has driven Minus7’s cutting-edge product development. 


Find out more about how minus7-renewable-technology works


Our Partners 

Minus7’s award-winning success is directly tied to the industry-leading companies we work with.

Find out more about our partners

S_cmyk Wilo logo copy Danfoss logo copyAquatherm logo copyDCI logo copyViper logo copyJaga logo copy GB Sol logo copyFronius logo copy


Want to come to our next open day?

email emma@minus7.co.uk for details