Ventilation

[ace0005]

This will be a basement build, So I have the vortex fan.. I have a plan to build the hood. But, do I HAVE to have an intake other than the space under my ventilation hood?? I’ve seen others build intakes from outside, and the out-flow also obviously outside. I have a large basement, and I don’t see any reason why I need to punch any extra holes in my house. Thus I’m confused!

 

[Shades]

The hood will work with out make up air but no where near as good if you have make up coming directly into the hood. Plus with out make up air you are just pulling conditioned air outside and making your furnace/ac work that much harder. Having intake air will pull outside air in then right out taking steam and smell with it. So IMO it is 100% worth the extra hole