Rehau supports biomass district-heating project

Rehau, biomass, renewable energy, district heating, space heating

Heat from the biomass district-heating scheme at the newly restored 18th-century Hestercombe House estate in Somerset is carried from the centralised plant room to the various buildings by Rehau’s Rauthermex flexible polymer pipework. 650 m of heat mains have been laid, including a 350 m run to the main house and art gallery and shorter runs connecting the visitor centre and other estate buildings. The largest-diameter Rauthermex Duo 63 mm pipework has been used throughout at a depth of about a metre.

The main house was previously heated by a 600 kW oil-fired boiler with separate heating systems in each of the estate buildings.

The new system was completed by Dunster Biomass, which designed and specified the whole district-heating scheme.

The PE-Xa carrier pipe is surrounded by closed-cell polyurethane foam which has a lambda value of 0.0216 W/mK. It also meets the requirements for durability on site with a robust, corrugated LDPE outer jacket around the foam.

Hestercombe is renowned for its garden designed by Lutyens and Jekyll. Other attractions include an art gallery, restaurant and music school.

For more information on this story, click here: June 2015, 131
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