IanMcP Posted March 22, 2022 Share Posted March 22, 2022 Hey so foundations soon going in. what have folks done with ducting for ASHP ? plant room isn’t on an external wall. Is it best to go down through the slab and come up 500mm externally with the feed / return / elec cable to the compressor. Or lay horizontal duct through ICF wall for simplicity. as ever , somebody has made these choices before please share 🙂 Link to comment Share on other sites More sharing options...
willbish Posted March 22, 2022 Share Posted March 22, 2022 I used a length of Uponor twin insulated pipe. Chuck in another duct or two for power and coms cables to the ASHP https://www.underfloorstore.co.uk/product/uponor-ecoflex-thermo-twin-pre-insulated-pipe Link to comment Share on other sites More sharing options...
IanMcP Posted March 22, 2022 Author Share Posted March 22, 2022 Dam. Everything is so long to order ! through the slab I assume ? Link to comment Share on other sites More sharing options...
Nickfromwales Posted March 23, 2022 Share Posted March 23, 2022 4 hours ago, IanMcP said: Dam. Everything is so long to order ! through the slab I assume ? Fast delivery from these guys normally... https://pipetek.co.uk/products/32mm-microflex-duo-heating-pipe-kit?variant=46263397322 Link to comment Share on other sites More sharing options...
Russell griffiths Posted March 23, 2022 Share Posted March 23, 2022 8 hours ago, IanMcP said: Dam. Everything is so long to order ! through the slab I assume ? Under the slab, not through it. Link to comment Share on other sites More sharing options...
Happy Valley Posted March 23, 2022 Share Posted March 23, 2022 We put 3 pipes in the ICF prior to pouring the concrete having discussed the size of pipes required with the installer. The ASHP will be behind the garage. Link to comment Share on other sites More sharing options...
makingprogress Posted January 22 Share Posted January 22 Hello - sorry to resurrect this thread - we are planning on putting our pre-insulated pipes from our utility room in the middle of the house, under the slab, and then in a trench to the rear of the garden. What happens if we ever needed to replace the pipes? Could we put them in some sort of ducting so we could remove / replace if needed? Cheers Link to comment Share on other sites More sharing options...
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