Green Building Forum - Using 6" flue liner for MVHR return ducts Tue, 19 Dec 2023 08:22:11 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301527#Comment_301527 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301527#Comment_301527 Thu, 11 May 2023 22:56:49 +0100 blubb
I would be very curious to hear about any real-life user experiences with that.

Two specific questions:
- is grade 316 steel good enough, or should I go with grade 904?
- any advice how to join the 6" flue liner to the 160mm Lindab spiral duct?

Many thanks!]]> Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301529#Comment_301529 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301529#Comment_301529 Fri, 12 May 2023 07:36:21 +0100 Dominic Cooney Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301538#Comment_301538 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301538#Comment_301538 Fri, 12 May 2023 11:21:46 +0100 tony Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301614#Comment_301614 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301614#Comment_301614 Tue, 16 May 2023 10:54:09 +0100 blubb
Posted By: tonyI much prefer ducts that are complete smooth inside

I agree in principle -- this is for using a disused chimney as the return duct -- a straight solid 160 mm pipe won't fit.

Does anyone know if Lindab use 316 or 904 grade steel? (I am fairly certain 316 but not 100% sure)]]> Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301615#Comment_301615 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301615#Comment_301615 Tue, 16 May 2023 10:55:06 +0100 blubb Tappers make sense.
Could not find 6" to 160mm adaptor from Lindab though...

Posted By: Dominic CooneyI think Lindab make all manner of reducers/adaptators. A couple of stainless steel self tappers should provide security.
]]> Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301617#Comment_301617 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301617#Comment_301617 Tue, 16 May 2023 11:27:24 +0100 Dominic Cooney https://www.ducting-online.co.uk/rc-reducer-160mm-to-c2x14243851]]> Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301618#Comment_301618 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301618#Comment_301618 Tue, 16 May 2023 11:28:37 +0100 Dominic Cooney Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301619#Comment_301619 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=301619#Comment_301619 Tue, 16 May 2023 11:33:44 +0100 Dominic Cooney https://www.ductstore.co.uk/acatalog/160.html

https://www.ductstore.co.uk/acatalog/safe-160_seals.html


Zinc-plated mild steel reducers with rubber seals to fit spiral ducting tube.

Reducers, as with all fittings, are male and slip inside spiral tube.

Lindab safe reducers are not generally held in our own stock. Smaller sizes typically 2-3 working days, larger reducers may take up to 5 working days.]]> Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=303732#Comment_303732 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=303732#Comment_303732 Thu, 05 Oct 2023 09:14:00 +0100 blubb Using 6" flue liner for MVHR return ducts http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=303748#Comment_303748 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17838&Focus=303748#Comment_303748 Thu, 05 Oct 2023 11:27:02 +0100 fostertom