In a system designed by NIBE Energy Systems Ltd. of Chesterfield, eleven boreholes 100 metres deep were drilled into the school grounds. Each borehole contains a plastic tube in an elongated u-shape, within which circulates a glycol/water mixture in a closed circuit. Energy from the warm ground is absorbed in the mixture and translated to two inter-connected NIBE Fighter 1330 Heat Pumps situated in the school’s boiler room. These, with a capacity of 30kW, convert the latent energy into heat for the water in a fully insulated tank situated near the Fighter units. This in turn feeds the entire under-floor central heating system and the hot water supply for all the school buildings.
Pupils and staff at Wrexham School can have the warm feeling from the satisfaction of using an energy efficient system that is as green as the grass growing over the boreholes that fuel it.
NIBE Energy Systems Ltd 0845 095 1200 www.nibe.co.uk
