As the title says.
I seem to have read a thread here where someone said it was not, but I'm not sure.
Basically I'm looking at adding an extractor fan to an existing air duct and could just quickly do it myself if there's not need of any certificates.
I seem to have read a thread here where someone said it was not, but I'm not sure.
Basically I'm looking at adding an extractor fan to an existing air duct and could just quickly do it myself if there's not need of any certificates.