ronaldgibbons

I just mean for information.

The kit is being supplied by Fleming Homes to our design. I have details of what the panels in their system claim to provide but as our design has lots of large windows, some large rooms, open spaces, a flat roof and large areas of roof terrace I've assumed the calculations could be relatively complex but will obviously need to be provided in the building warrant drawings. In the meantime I'll be absorbing as much info as I can. Tomorrow I'll be contacting some ASHP installers.👍

I agree. The kit designer/builder supplied expected insulation values when we chose the kit style and with the triple glazed windows and doors they've specified I'm expecting to see very high levels of insulation.

I'll definitely take your advice. I'm not demanding but I think so far our kit designer has been attentive and informative however I have noticed a drop of since we paid the deposit.🤨

Sorry, the architect friend with the apparently outdated advice on heat pumps is not involved in the build apart from some early creative input. The house will be built of insulated panels. I've got info on the expected insulation values but I don't have technical or engineering drawings yet.

I don't have that info yet but I'm assuming it's going to be high end.

The Cowal Peninsula on the West Coast of Scotland. Although it's Scotland and we do get wild weather, temperatures are mild here compared to inland areas. The house is (will be) on a South facing slope with large South facing windows.

I'll need to speak to those installers again (or different ones). I was told that an ASHP wouldn't be able to provide the amount of hot water required throughout the year for all the heating and hot water.

Thanks, I've got lots more enquiries to make and research before I make any decisions.

Thanks, we're still gathering all the info we can. She wanted an outside sink as well.😄

Thanks for that. I'm absolutely open minded about our options and looking for useful info to make the right choice. It was the conflicting information on ASHP's regarding their performance, especially in winter that put us off but I'll be having another look before making any decisions. The quotes for the borehole were £11000, £14000 and £18000. The larger quotes including accommodation and long distance transport. Regarding my original post, you seem to be saying there could be a crucial difference between using two shallower bores or one deeper?

Our quotes for borehole and all external works up to the plant room were £11000, £14000 and £18000. The two higher quotes are from companies that required overnight accommodation and one had huge transport costs. The plant room, underfloor heating and all internal works came in at £13000 and £17000. Again the higher quote involved accommodation costs.

Thanks for replying. I don't have details of heat loss calculations yet. The house is 220 m2, 1 bath, 4 showers, 6 sinks, 4 toilets and underfloor heating throughout. The GSHP option was recommended by an architect friend with experience of them and the ASHP was advised against because of the amount of energy needed and the conflicting information about their performance, particularly in winter. However we're not signed up for anything and are still open minded.

Thanks for that, I'd thought it was the ambient temperature in the rock that provided the warmth. So is it better to go deeper with one bore? It was the heat pump installer who recommended the borehole but we had said it was our preferred option based on advice we'd been given from an architect friend with experience of them. We'd been put off the idea of an ASHP by some conflicting information and reviews. Particularly regarding their performance in the winter.

Hi there, thanks for replying. We basically made our decision based on the advice of an architect friend who had experience with GSHP's. I did some Internet research on different heat pumps and sent enquiries to a few heat pump installers with details of the house design. We can't use the trench type because of ground conditions and there was a lot of conflicting advice on ASHP's so we went with the borehole but we're not signed up to anything and are still researching.