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Galvanised MVHR Ducting


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Could anyone help me with our MVHR installation. It's a Komfort EC SB Heat Recovery Unit - 550, using their BlauFast Radial Duct Manifold Box and 75mm semi-rigid ducting. We have a large vaulted area in the middle of the building, which is our kitchen/diner. This is 10m x 6m, with a 5.5m pitch roof/ceiling. The services that run through this area are all run on suspended galvanised traywork (see pic.). I want to run the MVHR in this area in 80mm round spiral galvanised duct (possibly Lindab), since the bright green 75mm plastic duct will look a bit out of place. At some point I will need an adapter to convert the duct from 75mm plastic to 80mm metal. Also, I need an adjustable metal supply/extract valve on the end on the 80mm duct. Again because the plastic plenum box they supply to fit in ceilings in not suitable or pleasing to the eye. I'm having trouble getting either of these items off the shelf. Could any suggest a supplier. Thanks.

IMG20230302155837.jpg

Edited by tuftythesquirrel
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