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DANFOSS HEAT PUMPS - Boat Club Sets Sail With New Heat Pump

Manvers Waterfront Boat Club, a new watersports club that combines Canoeing, Angling and Triathlon, is at the forefront of an innovative and sustainable method of heating its water and clubhouse through a ground source heat pump system supplied by Danfoss Heat Pumps.

The new boat club, which is based in the Dearne Valley area of South Yorkshire, is one of the first in the UK to benefit from a heat pump which draws energy from loops placed in the lake in an innovative method that makes the best use of natural resources. The heat pump is providing space and water heating for the café facilities, changing rooms and showers, meeting rooms and offices for use by members and visitors to the boat club.

Canoe England, which runs the club, was looking for an affordable and sustainable method of heating the property that could then be used as a blueprint for other boat clubs around the country. The organisation reviewed the various energy sources available to them and heat pumps proved to be much more affordable to run and, when heat was to be derived from the lake, they found they could be expected to deliver a very high coefficient of performance.

Chris Hawkesworth, Chairman of Manvers Waterfront Boat Club, said: “We are really excited about being the first club in the country that has the capability to use energy from a natural water resource to heat our building. After many reviews of the alternatives, we chose Danfoss’ heat pumps because they are a major manufacturer with a strong reputation and it also helped that I have their heat pumps fitted at home so knew they would provide a high quality, reliable, efficient form of heating. I don’t think any of us expected them to be able to deliver such efficient performance as they have done – achieving a very high performance, which will save us significantly on our running costs, whilst delivering a consistent level of heating and hot water.”

The heat pump is expected to deliver an efficiency of 11:1, which means that for every unit of electricity used to drive the pump, at least 11 units of energy in the form of heat is released in to building, making it one of the most efficient and cost effective methods available on the market.

Chris Dale, Director of Danfoss Heat Pumps, explains: “Closed loop water source heat pumps are a tried and tested method in Scandinavia and other Northern European countries, but it is great to be part of this exciting method installation of this type of heat pumps in the UK. There are many properties located close to water that could take advantage of closed loop water source heat pumps and this is the perfect example of how effective they are in providing space heating and hot water, even for larger buildings.”

The installation was carried out by Danfoss Heat Pumps and their sub-contractor Groundsource Drilling & Contracting in Barnsley. The pipes were laid in 12 metre depth of water, with divers placing the 4 x 200m ground loops deep on the bed of the lake, which were then secured at regular intervals. Ground Source Drilling & Contracting then pressure tested the loops to ensure they could deliver the appropriate flow rate per minute. They then dug a 130m trench which led from the lake to the building entrance to accommodate the loops from the lake. A flow and return manifold was constructed consisting of flow valves and a pressure gauge, which was located outside the building. This featured pipes with a diameter of 75mm that were connected to the heat pump. Groundsource Drilling & Contracting carried out several pressure tests throughout the two week installation process to ensure that the lake loops were operating to optimum efficiency.

Danfoss Heat Pumps supplied its Danfoss DHP-R large capacity heat pump, with a capacity of 26kW. The company also supplied a 400 litre buffer tank to enable adequate space heating and DWH 700 hot water tank. DHP-R is a popular system within the Danfoss Heat Pumps’ range for light commercial applications as it allows for heat pumps to be cascaded for even higher energy requirements. However, this is the first time the technology has been applied to water source for a UK project – installations are either as ground source or air source heat pumps. It can also be integrated with existing heating systems, such as oil-fired boilers, electric boilers, district heating or wood, which can then supply extra energy to meet peak demands.

The system provides highly efficient hot water production, with an innovative control system which makes monitoring easy. This advanced control system means the heat pump can easily be controlled remotely through the internet, providing access to information regarding current temperatures and operating history wherever you are in the world.

The design of the heat pump also means it provides high annual efficiency, which minimises energy consumption and could meet the requirements of the canoe club, which currently has 500 members and expects to attract 6,000 visitors at major events in 2011.

The Manvers Waterfront Boat Club, which officially opens in May 2011, offers members and visitors a wide range of activities including canoeing and kayaking, angling, sailing, model power boating, triathlon and supervised open water swimming.

Danfoss Heat Pumps has built its reputation on manufacturing high quality heat pumps for both commercial and domestic applications. The company has a network of approved installers throughout the UK, which it supports through training, as well as with technical and design advice, commissioning and after-sales service.

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