Danfoss Ground source heat pumps Heat pumps Inverter drives News 151211

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DANFOSS HEAT PUMPS Installed To Protect Social Housing Tenants Against Rising Energy Prices

Ground source heat pumps from Danfoss Heat Pumps UK have been specified for a £5m new-build social housing development at Upton near Pontefract.

The pumps have been installed at two semi-detached properties which have achieved Level 6 of the Code for Sustainable Homes. They form part of the 49-home School Lane development on a brownfield site which has been built by Yorkshire Housing, one of the county’s largest social housing providers, in partnership with Wakefield Metropolitan District Council and the Homes and Communities Agency.

Environmental sustainability and energy efficiency are key priorities for these new homes and each property will incorporate renewable technologies, such as solar roof tiles, and heat recovery systems. The homes with heat pumps will be among 34 available for social rent, with the other properties offered for purchase through shared ownership.

Ged Walsh, Business and Development Director at Yorkshire Housing, said: “At Yorkshire Housing we aim to deliver modern and environmentally-friendly homes to the people who need them most. We are always looking for reliable and sustainable products in the market that will have a real cost benefit for our tenants and improve the efficiencies of our homes.

“By using Danfoss’ heat pumps and a number of other sustainable technologies, we can reduce the impact on the environment and our tenants will benefit directly from reduced heating and electricity bills.”

Main contractors Mansell had worked with Danfoss Heat Pumps UK on a recent social housing project in Rotherham and recommended the company to its client. Mansell Senior Quantity Surveyor Steve Seedhouse, explains: “We were impressed by the technical support we have received when we worked before with Danfoss Heat Pumps UK. The installation was very successful there, so we were confident about recommending their heat pumps on this project too.”

After carefully assessing the properties’ energy needs, Danfoss Heat Pumps UK specified its 6Kw DHP-H Opti-Pro pumps with integral 180 litre water tanks to provide space and water heating.

The heat pumps are each supplied by a 90m ground loop buried in a vertical borehole in the back garden, which extracts heat from the ground. They will maintain a continuous supply of domestic hot water, as well as supplying an underfloor heating system on the ground floor and radiators on the first floor.

Ground source heat pumps work by circulating a refrigerant fluid around a circuit containing four elements: evaporator heat exchanger, compressor, condenser heat exchanger and expansion valve. Heat absorbed from the ground is transferred to the liquid refrigerant which evaporates to form a gas. This gas is then compressed which causes its temperature to rise. The hot gas passes into the condenser where it starts to change back to a liquid as heat is transferred into the building. After passing through the expansion valve, the liquid refrigerant returns to the evaporator and the cycle begins again.

The DHP-H Opti Pro pump is one of the most advanced on the market and incorporates an intelligent control system on the circulation pumps to ensure maximum efficiency.

Chris Dale, Director of Danfoss Heat Pumps UK, explains: “An increasing number of social housing providers are investing in heat pumps both to reduce carbon emissions and to provide their tenants with a means of low cost heating. This is preventing them from falling into fuel poverty due to the impact of rising energy prices.”

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