Mark Derbyshire – Renewables
Mark Derbyshire is commercial director for Vaillant in the UK and Ireland.
Viewpoint: We need a way to compare system filters
Martyn Bridges, director of technical communication and product management at Worcester Bosch, explains why we should consider performance testing of filters as we move forward
Robert Burke – Solid fuel and biomass
Robert Burke is technical and standards manager at HETAS and is president of the British Flue and Chimney Manufacturers Association.
John Felgate – Renewables
John Felgate is the technical director for Stiebel Eltron, one of the UK's leading renewable energy products manufacturers.