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MVHR vents : rectangular shaped - suppliers?


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Usually MVHR ceiling vents are circular. But I am under direction from Mission Control (SWMBO) to find some rectangular ones.

 

I've looked at ventilationmegastore, they don't do them

I've asked BPC - they don't do them. The closest they do is a rectangular spigot (fixed) - but you can't 'tune' that (screw the valve in or out as needed)

There are plenty of suppliers of fixed rectangular ceiling vents  - but we need one with the normal screw -in-out- valve.

 

Any know of a supplier who might be able to help?

 

 

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You may need to come up with an alternative solution. Easiest would be to fit baffles in the pipes where they leave the manifold - I forget who makes them, but I'm sure someone will know. Otherwise maybe a DIY solution - for example cut some EPS offcuts to fit your rectangular spigot and put holes in them to achieve the flow you want.

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We intend to use Ergovent which are plastered in.  Not sure if it’s too late for you for that or if you prefer surface mount.  
 

https://www.ventilationland.co.uk/en_GB/p/frameless-square-ventilation-valve-ø-125-mm/18709/?gad_source=1&gbraid=0AAAAAB0qKPCDyeAp9KFPi3NPY7szWhSMM&gclid=CjwKCAjw9p24BhB_EiwA8ID5Btq_n6a3GfORlhvHEiCKGcuqGAnenTP08SzNlKxntU6VtUF3h__QchoCb4EQAvD_BwE

 

They do come with an adjustable baffle I believe.  The square middle bit is held on by magnets so can easily be popped off to adjust flow. 

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28 minutes ago, G and J said:

We intend to use Ergovent which are plastered in.

Worth knowing that you don't get a coanda effect from flush vents - that is, the air from the vent will tend to flow downward, rather than dispensing along the ceiling. Some non-flush vents are designed to exploit that effect, others will no doubt benefit from it incidentally. That's not necessarily a problem but, for example, you might not want to place one directly over a bed, despite the low flow rate of MVHR.

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3 hours ago, ToughButterCup said:

I'll try that one on her @Adrian Walker, but I don't think it'll wash. She's got a way with her that's sometimes called  'quiet determination'. Brilliant when it works in your favour but .....

Just say that it might whistle with square vents, a man in Dorset said they might (LOL). 

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