At Dunster, we regard the development of standards and safety in the biomass and geothermal heating industry as very important.

The products we offer undergo strict quality control and our team of engineers are trained in line with emerging technologies, to keep pace with the development of the industry.

View our Dunster Corporate Social Responsibility Policy.


Clausius - The Heat Pump Specialists

Clausius heat pumps are designed and continuously developed by the leading European refrigeration expert Professor of Engineering José Fernández-Seara, at the University of Vigo in Spain. The Clausius range uses the latest scientific research, engineering expertise and build quality that incorporates lead brand components. Dunster Energy is the official partner and supplier of Clausius ground source heat pumps


WHA - Logo Image
Wood Heat Association

Wood Heat Association is a reputed UK trade association for the modern biomass heating industry. They bring together wood fuel suppliers, biomass boiler and stove installers and distributors, energy companies and developers. WHA is a fully owned subsidiary of the Renewable Energy Association (REA), and the largest wood and biomass heating trade association with 240 member companies.
REA - Logo Image

The REA was established in 2001 as a not-for-profit trade association representing British renewable energy producers and promoting the use of renewable energy in the UK. The REA helps its members build commercially and environmentally sustainable businesses whilst promoting clean tech and increasing the contribution of renewable energy to the UK’s electricity, heat, transport and green gas needs.
NIC EIC - Logo Image

The National Inspection Council for Electrical Installation Contracting (NICEIC) regulates the training and work of electrical enterprises in the UK. NICEIC approved contractors such as Dunster Energy are assessed to the highest standards covering all types of electrical contractors and installations.
HETAS - Logo Image

HETAS is the national organisation working for consumer safety and the wider public interest in safe, efficient and environmentally responsible use of biomass and other solid fuels. Dunster Energy is a HETAS registered installer, meaning that customers have peace of mind knowing that our expert engineers are trained and assessed to carry out compliant work.
Chas - Logo Image

The Contractors Health and Safety Assessment Scheme improves health and safety standards across the UK.​ Dunster is an approved CHAS contractor, meaning we undertake annual assessments to maintain high levels of health and safety.

Microgeneration Certification Scheme (MCS) is a nationally recognised quality assurance scheme, supported by the Department for Business, Energy & Industrial Strategy. MCS certifies microgeneration technologies used to produce electricity and heat from renewable sources. Dunster is MCS certified, demonstrating to customers that our installations are completed to the highest quality every time.