[jackallis]

https://i.imgur.com/YtOqr14.jpg
https://i.imgur.com/JDrflre.jpg


i dont understand, why is there a supply in my basement but not return?
do i cut one out?

 

[surferdude2]

Yes, you should install a return air. It's best located down low, never on a basement ceiling.

 

[roughneck]

Are there any natural draft appliances in the basement?

 

[jackallis]

what does that mean "natural draft appliances"?

 

[roughneck]

Fuel burning appliances that naturally draft up a chimney.

 

[sktn77a]

Like a gas water heater.

 

[user_12345a]

natural draft = no inducer, draft hood/diverter instead...