New old house, basement fireplace has a fan forced to duct, tie to cold air return or make a ceiling vent near cold air return?
So the fan is mounted on the outside of the house pulls fresh air around heater box and sends to a 8" duct. How should I finish this off? Drywall starts in 2 weeks and need to finish this off. Really pumps out the heat!
![[Hearth.com] How to tie in fireplace heat duct?](https://www.hearth.com/talk/data/attachments/282/282669-3b13f9eae0a08ab32a45692cb3a2b548.jpg?hash=c4JWn5NjYv "[Hearth.com] How to tie in fireplace heat duct?")
![[Hearth.com] How to tie in fireplace heat duct?](https://www.hearth.com/talk/data/attachments/282/282670-5de27a768b46a70656d480b10693a920.jpg?hash=FfFplvY_aT "[Hearth.com] How to tie in fireplace heat duct?")
So the fan is mounted on the outside of the house pulls fresh air around heater box and sends to a 8" duct. How should I finish this off? Drywall starts in 2 weeks and need to finish this off. Really pumps out the heat!
