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Product category: Heating Systems, Controls and Management
News Release from: ECO Heat Pumps | Subject: Renewable energy from heat pumps
Edited by the Buildingtalk Editorial Team on 13 December 2007

Schools use renewable energy from heat
pumps

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Wormholt School in west London is one of the first schools in the country to run its heating and cooling systems from a ground source heat pump system.

Wormholt School in west London is one of the first schools in the country to run its heating and cooling systems from a ground source heat pump system Already famous for being featured in the BBC TV Series 'Grange Hill', Wormholt School in Shepherds Bush, which is maintained by the London Borough of Hammersmith and Fulham, is now benefiting from a more energy efficient, affordable heating system provided by ECO Heat Pumps

Phil Moore, Managing Director of ECO Heat Pumps, explains: "Wormholt School is leading the way in demonstrating that renewable energy, such as heat pumps, meets the heating requirements for current and future energy needs".

"Not only can the school demonstrate its environmental credentials, but it will benefit from much lower energy bills, which means a heat pump typically pays for itself in 5-7 years".

The ECO Heat Pump System is designed to achieve Coefficiency of Performance (COP) of 4:1, this means for every unit of electricity used, the heat pump will delivery four times that in energy output, bringing the new building well within the carbon emission regulations.

The heat pump system includes ground loops that are buried in trenches in the school yard that provide all the heat and hot water for the new school extension.

Once the ground had been 'trenched' and landscaped, it was covered with a specially porous asphalt that allowed for the slight expansion and contraction of the ground which sometimes occurs because of the hidden heat exchange below.

The heat pump works by pumping a water-glycol mixture through 250 metres of pipework below the ground's surface, absorbing the radiant heat held naturally in the earth.

The heated water enters the flow side of the heat pump, which is located inside the school.

Here, the action of compressor and condenser brings the water temperature up to the levels required by the school's space heating and hot water systems.

The system is simple to operate and a graphic display shows all key operating functions and the temperature can be raised or lowered at the push of a button.

This type of heat pump is also extremely reliable and offers 100% capacity throughout its long service life.

Every unit is also fitted with a 3-step electric heating element which can supply back-up heating in 1.5, 3 and 4.5 kW stages in cases of extreme or severely cold weather, although this is rarely needed.

ECO Heat Pumps, which is an accredited partner to British Gas, can offer GBP2,500 towards domestic installations and 35% off the cost of heat pumps through the Low Carbon Buildings Programme (LCBP) when fitted into local authorities, housing associations and charitable organisations.

More advice can be found on the website.

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