Green Building Forum - Recommendations for a small MVHR Mon, 20 Apr 2026 11:14:13 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Recommendations for a small MVHR https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15515&Focus=264884#Comment_264884 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15515&Focus=264884#Comment_264884 Sun, 21 Jan 2018 12:18:44 +0000 chrip
As the house is being stripped back to solid walls and timber now is probably a good time to plan for this]]> Recommendations for a small MVHR https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15515&Focus=264907#Comment_264907 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15515&Focus=264907#Comment_264907 Sun, 21 Jan 2018 19:51:48 +0000 SteamyTea
Depending on the volume of your house, you may get away with what seems a lower efficiency unit running at a much lower mass air flow.

A lot of it depends on how easy it is to install. If you have good access in the loft it should make life easy.]]> Recommendations for a small MVHR https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15515&Focus=264916#Comment_264916 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15515&Focus=264916#Comment_264916 Sun, 21 Jan 2018 21:54:28 +0000 djh
Building regs (part F) will then tell you what size unit they think you need, and they're a reasonable basis for sizing.]]>