Andehh Posted January 2, 2023 Share Posted January 2, 2023 I have a really awkward run to get my inlet and outlet pipes through to the ceiling. Metal rigid Ducting is killing me, trying to find a routing! Lost several hours and still struggling. Is there an equiv to the 125mm smooth bore Ducting the installer used to connect the MVHR to the rooms. Due to a poor installer letting me down, I'm stuck trying to resolve this myself! Thanks in advance. Link to comment Share on other sites More sharing options...
PeterW Posted January 2, 2023 Share Posted January 2, 2023 Yes you can use 125mm convoluted aluminum duct but make sure you insulate it 1 Link to comment Share on other sites More sharing options...
IanR Posted January 2, 2023 Share Posted January 2, 2023 Could you use something like Lindab Tectherm to get through the awkward area? https://itsolution.lindab.com/lindabwebproductsdoc/pdf/documentation/ads/lindab/technical/tecflex400.pdf I used the Ø250 for some of my inlet/outlet route and works fine. 1 Link to comment Share on other sites More sharing options...
Andehh Posted January 2, 2023 Author Share Posted January 2, 2023 (edited) Thanks both. Would the below be suitable? I think 1.5m would do me length wise! https://www.amazon.co.uk/125mm-1-5m-Aluminium-Ducting-Hose/dp/B09LZXD82Y/ref=sr_1_3?crid=30E7ELZ0O4UXD&keywords=Aluminium+Air+Ducting+125&qid=1672678764&refinements=p_76%3A419158031&rnid=419157031&rps=1&s=diy&sprefix=aluminium+air+ducting+125%2Cdiy%2C1049&sr=1-3 Edited January 2, 2023 by Andehh Link to comment Share on other sites More sharing options...
Nickfromwales Posted January 2, 2023 Share Posted January 2, 2023 You can get the Ubink 125x 4x 92mm manifold, convert to multiples of smaller 92mm ducts to get through the pinch-point, and do the same to get back again. 1 Link to comment Share on other sites More sharing options...
Andehh Posted January 2, 2023 Author Share Posted January 2, 2023 Thanks, frustratingly I have managed to route it....there is just so little space to insulate it & seal each joint (roof vents & worried about water ingress) that I want to test other options before I doom myself to kissing goodbye to the skin on my knuckles! I have ordered a length of the above to test it, so fingers crossed! Link to comment Share on other sites More sharing options...
Nickfromwales Posted January 2, 2023 Share Posted January 2, 2023 1 minute ago, Andehh said: Thanks, frustratingly I have managed to route it....there is just so little space to insulate it & seal each joint (roof vents & worried about water ingress) that I want to test other options before I doom myself to kissing goodbye to the skin on my knuckles! I have ordered a length of the above to test it, so fingers crossed! I use the Illbruck 330 foam to insulate where other materials are impractical / impossible to install effectively. Link to comment Share on other sites More sharing options...
Andehh Posted January 2, 2023 Author Share Posted January 2, 2023 Aaaah, expanding foam.... my second true love these days!! At times 1st true love.. Link to comment Share on other sites More sharing options...
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