Maldwyn has over 25 years’ of experience in the industry and is an ex British Gas Design Engineer. Qualifications include  ASHP, G3, Gas, Oil and LPG. In addition a Domestic Energy and Retro Fit Assessor and certified training assessor. Maldwyn also Consulted on Sauermanns SICA range of flue gas analysers and the patented pressure-safe system.