extractor hood, any need for additional extractor fan?

[bigstu11]

if a kitchen is fitted with an extraction hood above an induction hob does it need an additional extract fan in the kitchen to comply with airflow regs? any help appreciated

 

[telectrix]

not if it's an existing kitchen. if a new build, go by what BC requires.

 

[Guitarist]

Another lol moment for me. Installers can derate cables below their rating by dumping tons of insulation everywhere in the loft, yet we still worry about whether a kitchen is getting quite enough airflow.
The County's gone mad.
As tel says, if an existing kitchen then do what the client wants.