MVHR - Fire Regs Compliance

[GraHal]

What Regs impact installation of MVHR?

 

Accepting that ducts would be boxed in behind plasterboard and / or above ceilings.

 

I keep thinking of ceiling terminals / air valves ... they provide a pathway from one room to others.

 

Do the air valves need to be self-closing or have intumescent seals etc?

 

Also any other comments gratefully received.

 

Thank You  

[Conor]

None if your building is two floors or less. Good practice tho to seal any penetrations between floors etc.

 

A lot of units will have a fire damper option, you'd need to connect whatever terminal there is for the function to your smoke alarms.

Edited January 26, 2023 by Conor

[MikeGrahamT21]

I have 2 ducts which pass through a double wall (block cavity construction) from the loft into a vaulted ceiling, and these needed intumescent seals, as the wall is classed as a fire wall.