Recent content by nudgerreturns

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    GSHP Sizing

    That's interesting thank you. GT 10 is 3.4 GT 11 0.0 So by that would you be able to be sure the ground loops are OK? Or is that just an observation? Not sure if I have a TMV, nor where my U/F pump is.... News from installer is that they now know I am contacting MCS with a view...
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    GSHP Sizing

    For those interested, my HP readings from one pump are: Heat is set at 5. However the heat slope on the step controller is at 6. MENU 3: GT1 - OFF 60.2 NOW 34.5 GT2 -27.2 :shock: Went into service mode to get the following: GT6 Compressor 78.6 timer in menu 6: DHW Peak...
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    GSHP Sizing

    Do you mean supplementary heating is essential in any GSHP installation? On in this case? If it's the latter, I will have the whole system removed and replaced before adding more expense, if they've got it wrong then they are liable in my opinion! we have an area of flat, south facing garden...
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    GSHP Sizing

    Ground loops are straight runs, not coiled. 400m. Getting any other supplementary heating is a no no - this system has cost a fortune to install and now a fortune to run, I'll go to court first!
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    GSHP Sizing

    If there was anyone with the expertise to offer their services, then please let me know as that may prove invaluable. I am Nr Marlborough SN8, perhaps someone would be happy to do it? Obviously there would be a cost involved. Anyway do shout if so, I need to press on gathering data with a...
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    GSHP Sizing

    We're a single detached house, and we have 2 7kw IVT heat pumps. (single phase as we couldn't get 3 phase here) One serving DHW and the other CH & DHW if I recall correctly. Opinion thus far is that the loops are insufficient and so are the pumps.
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    GSHP Sizing

    The issue is definitely climate related in the sense that we a re comfortable as long as it is mild. As soon as we get a cold snap, the rooms in question become very cold. (My son's room is 12 degrees, from 16 degrees last week) How can I find the flow return temps to the ground loops? Whats...
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    GSHP Sizing

    I was worried - my relative in question has 1000m vs my 400m! We have already added another two pumps to try and solve the rad heat problem! I've attached a few pics for interest //www.diynot.com/network/nudgerreturns/albums/14916
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    pump added to attempt to improve rad temp upstairs
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    pump added above HW cylinder
  13. GSHP

    GSHP

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    GSHP Sizing

    Thanks everyone, I think I really need to bring in an independent engineer to go through this in detail and submit a report. If anyone can recommend a way to find anyone in the Wilts region, that would be brillant. Cheers once again.
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    GSHP Sizing

    SNB, thanks very much, I will look into sorting all those points, in the meantime I've found the spec list (I have noticed the incorrect floor size for a start!): I have also seen one to an identically sized property, and that has been specced by the same supplier with a IVT Greenline HC+ 33kW...
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