Cool weather..Can I use a dehumidifier instead of vent?

I think that would depend on the size of dehumidifier, how much cooking and coffee making, and how many people are bathing and breathing.

I have a small one like this that sits on the kitchen counter. With just DW and I, no cooking or showers, just coffee in the mornings, the poor little thing works over time and can't keep up.

There's already another thead going on this. Here's the link.