Silencer in metal ducting

[Thedreamer]

Starting to understand what I need for the ducting order.

 

Our plans show a silencer. I have the option of ordering a longer silencer and those that have more insulation in the silencer (50mm to 100mm).

 

What size and thickness of silencer have others used?

 

Thanks

 

 

 

 

 

 

 

 

 

 

 

 

 

[Jeremy Harris]

I'd opt for the biggest silencers you can fit (and afford) as my experience has shown that running without silencers was noisy, and with limited space I ended up having to make custom ones to fit.  They are as large as I could fit in the space available, but we still get some very slight noise when the MVHR is running flat out, not annoyingly loud, but as the house is so quiet it is noticeable at times.

[jfb]

yes go as big as you can - I also ended up making my own and it has reduced the noise on the supply side to inaudible

[Gone West]

As others have said, go for the largest that will fit. I fitted a 600mm long by 250mm diameter attenuator as that was the longest I could squeeze in on the supply side and it's silent.

[Thedreamer]

Ok thanks very much.