In-floor fan?

[darxus]

I want to put a fan in my floor to blow air from upstairs to downstairs. Are there parts made to simplify this process?

Comments

[darxus.livejournal.com]

Yeah, my grandparents had an attic fan. I'm concerned about noise. And wondering about just punching a big hole in my floor, putting a grate over it, and a regular ceiling fan under it.