Sabien Technology has developed the M1G, a new retrofit control technology designed to reduce the operating costs of direct-fired water heaters. Field trials in office and hotel applications have shown average energy savings of 12% with payback periods ranging from 1.4 years to 1.6 years.

The fully adaptive M1G reduces energy costs by differentiating, in real time, between a genuine demand for hot water in the building and the short cycling caused by firing simply to replace standing heat losses.

When an attempt to ‘short cycle’ is identified, the M1G’s software and algorithms will identify it and prevent the burner from firing. If there is no genuine demand after 15 minutes, the M1G allows the water heater to fire to its designed temperature settings. If at any point during the 15 minutes there was a sudden demand for hot water the M1G would instantly recognise this and allow the water heater to fire.

The M1G uses a completely new approach to the control of direct fired water heaters which has led to its recognition in the RBS Innovation Gateway shortlist operated by the 2degrees network.

For further information visit www.sabien-tech.co.uk/m1g