What external Air admittance valve would you recommend?

[Paul Cockhill]

Hi

I want to fit an external air admittance valve to a new stack pipe, see picture. Does anyone have a particular recommendation.

Many thanks

Paul

 

[WC1]

If its outside i would vent it properly with a cowl not a aav.

 

[Paul Cockhill]

If its outside i would vent it properly with a cowl not a aav.

hi, Yes I was orginally thinking a cowl but there are windows to the left and right of the stack and the cowl would have to go high over the eaves which would look unsightly

 

[WC1]

It looks unsightly to you because you know how it looks now.
Anyone seeing it in future wouldn't notice it.
Always open vent over aav.
(In some circumstances it has to be open vent - Check bldg regs)

 

[cjg]

extened 2ft then open vent.

 

[Paul Cockhill]

It looks unsightly to you because you know how it looks now.
Anyone seeing it in future wouldn't notice it.
Always open vent over aav.
(In some circumstances it has to be open vent - Check bldg regs)

Thanks very much, appreciate the advice