Mr MacPhee is excited to be joining the growing business: 'There's never been a better time to install a heat recovery system that helps businesses to save money whilst reducing carbon footprint and I'm looking forward to raising awareness of the benefits of heat recovery and helping to drive the business forward.

'As opposed to heat pumps, heat recovery doesn't need energy to run the system. It utilises the waste heat from the discharge gas, is easy to fit, simple to use and cost-efficient to maintain as it has no moving parts.'

Mr MacPhee's responsibilities will include driving sales in the industrial market and helping advise potential clients on engineering and refrigeration matters.

Founding director of DK Heat Recovery, Nigel Upson is pleased to welcome MacPhee: 'Calum's skillset complements the rest of the team and we're looking forward to his contribution as sustainability and cost savings move further up business's agendas for change and demand for heat recovery grows.'

Based in Beverley, East Yorkshire with a satellite office in Peterborough, DK Heat Recovery is the sole UK agent of DK Kaelteanlagen GmbH's heat recovery systems and is supported by a network of installers and refrigeration engineers nationwide. It has installed heat recovery systems for food manufacturers, supermarkets, farm shops, butchers and garden centres over the last decade.

DK Heat Recovery's systems are suitable for use in any business that has refrigeration plant and a requirement for hot water or space heating.