Tue, 19 Dec 2023 07:59:20 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253157#Comment_253157 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253157#Comment_253157 Mon, 23 Jan 2017 12:29:44 +0000 cjard
So i'm thinking to just install a small MVHR in the loft of what is otherwise a reasonably airtight (no many drafts) and acceptably insulated flat. Much as I'd love to kick the tenant out for 6 months while I renovate the entire thing, re-insulate, draftproof etc I haven't the time, money or health at the mo (other build has put paid to all those)

I'm hence looking for a relatively inexpensive part way solution to the "oh, the walls are growing black mould" complaint that isn't going to take forever to implement and isn't anything the tenant can switch off or obviate.. Any recommendations?]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253164#Comment_253164 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253164#Comment_253164 Mon, 23 Jan 2017 13:25:36 +0000 djh http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253174#Comment_253174 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253174#Comment_253174 Mon, 23 Jan 2017 16:19:12 +0000 ringi
PIV units do work, but given how bad your current tenants are how will you stop them turning one off?]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253181#Comment_253181 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253181#Comment_253181 Mon, 23 Jan 2017 17:55:41 +0000 cjard
Cut 4 equal lengths of flexi duct (so they have the same resistance)
Pull up loft wool
Cut 4 holes in 4 rooms ceilings (roughly equal sized rooms) and poke the vents through em
Arrange ducts in an X shape with unit in centre, make up a manifold using a length of 150mm pipe, shove the ducts into it and foam up the gaps
Bash 2 holes in gable, plumb to unit (or use existing chimney for extract and very-breezy loft space for supply)
Plug into loft power socket

Activate - no need to balance, it should be self balanced at that

Changing filters once in a while is the biggest bugbear

PIV could work, don't think the tenants would go up and switch it off..]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253196#Comment_253196 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253196#Comment_253196 Mon, 23 Jan 2017 21:49:11 +0000 djh Posted By: cjardChanging filters once in a while is the biggest bugbear
Ours need cleaning (washing rather than replacing) every few months, not sure exactly how often since it seems to vary a bit. The unit puts a red light on when it needs doing. It's simple enough to do and I do it since I own it, but I can imagine it being problematic with some tenants.

Don't forget that the ducts and the MVHR unit will need insulating if they are in an unheated loft.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253197#Comment_253197 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=14857&Focus=253197#Comment_253197 Mon, 23 Jan 2017 21:50:00 +0000 ringi