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Ground source heat pump installation

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This topic has 6 voices, contains 8 replies, and was last updated by  odbob 104 days ago.

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May 18, 2011 at 9:54 am #5401

JohnH

I am considering installing GSHP and would like to know whether anyone has experience with this technology and the planning system. Do you need PP if the bore holes are well away from the building in garden land attached to the house?

May 20, 2011 at 2:52 pm #5411

Dean Carey

get intouch with your local council office, planning department, they will advise.

May 23, 2011 at 10:37 am #5416

Barks

Ground source heat pumps are a permitted development right, so there should be no problem. If the boreholes were open loop then depending on the extraction rate you would need a license from the Environmental Agency.

If it was air source then you would require planning permission.

May 23, 2011 at 5:34 pm #5417

JohnH

Many thanks.

May 25, 2011 at 10:34 pm #5421

Martin_N

Hi John. First question is are you on the gas main? If you are, heat pumps, even ground source ones, offer no carbon saving currently, though they might in the future if their COPs can get well above 3. See http://www.guardian.co.uk/environment/2 … en-heating . Simon Green, head of Business Development for the Energy Saving Trust, said: "This trial shows that when installed and operated correctly, heat pump technologies will save significant amounts of CO2 in the UK, when replacing oil or traditional electric heating" [but not gas at a COP of 3.0]. The EST also found that many were badly specified or installed and achieved COPs below 2.6.

May 26, 2011 at 5:30 am #5422

JohnH

Thanks Martin. The company I am talking to expect a COP of 4 which seems achievable if, as you say, the installation is done properly. I’m talking to Ice Energy. If anyone has any experience with them I would appreciate any feedback. John

May 31, 2011 at 5:44 pm #5424

Martin_N

Hi John

The EST report is at http://www.energysavingtrust.org.uk/Pub … id=4898250 .
Note that the full report says " A comparison between carbon emissions from heat
pump installations and electric or gas heating
[XXXbased on the UK government’s current predictions
for grid decarbonisation XXX)shows that a well installed
heat pump can lead to carbon savings,
both at present and over the lifetime of the pump." Note the bit between my XXXs, i.e. not yet delivering vs.gas.
The BEST result they got was a system COP of 3.3, with the actual pump being 3.6.

February 4, 2012 at 6:08 am #6950

luissousa

Ground source heat pumps can be applied to a wide range of both domestic and commercial applications, ranging from heating a small residential property with a swimming pool to heating and cooling a large commercial building like a hotel. If a house, commercial property or swimming pool need heating or cooling, then a ground source heat pump can help to reduce running costs GSHP is the ideal bridging point between the latest green energy technologies and the people who benefit from these developments. GSHP is benefial for the enviroment as well as its installation help in saving money, save energy, operating cost.
GSHPs)are electrically powered systems that tap the stored energy of the greatest solar collector in existence: the earth. These systems(i.e.Ground source Heat pumps) use the earth’s relatively constant temperature to provide heating, cooling, and hot water for homes and commercial buildings The heat pump system uses solar energy stored in the earths crust. Energy is transferred to and from the earths surface by solar radiation wind asnd rainfalls.Ground sourced heat pumps simply move energy from one place to another. This energy is transferred over the condenser and into the distribution circuits, where hot water is circulated through the under floor circuits and in turn heat the property.
For more detail visit;
http://www.egshpa.com/

February 4, 2012 at 8:59 am #6951

odbob

I am not sure about the longevity of performance of heat pumps, when I was asked to check the performance of an 8 year old hp. I found that, contrary to the 3Kw per hour or there abouts, which should have been drawn from the loop at 2 deg c, I could only record at best 1Kw per hour. post servicing (by others) of this unit failed to raise the performance significantly and so the Customer was left with having to consider replacement.
I am not saying don’t, simply be aware that this world is not perfect

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