Green Building Forum - 125mm air duct? Mon, 25 May 2026 06:22:53 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 125mm air duct? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18381&Focus=309803#Comment_309803 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18381&Focus=309803#Comment_309803 Fri, 05 Dec 2025 20:03:36 +0000 blubb
I am extending our MVHR system and I need an extra run of 125mm spiral air ducting. Does anyone in the Cambs area have any leftovers from their installation sitting quietly in the garage?

Any advice where to source it?

Many thanks!]]> 125mm air duct? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18381&Focus=309805#Comment_309805 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18381&Focus=309805#Comment_309805 Fri, 05 Dec 2025 20:21:33 +0000 djh 125mm air duct? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18381&Focus=309806#Comment_309806 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18381&Focus=309806#Comment_309806 Sat, 06 Dec 2025 09:40:45 +0000 Gareth J https://www.fastlec.co.uk/125mm-aluminium-insulated-flexible-duct-10m

However, in Cornwall so not helpful for collection from cambs. Fastlec do free delivery over £75 so maybe that an option to source it by the time you get some other installation bits and pieces too.]]>