central air ducts at the floor
I'm looking into air conditioning for my house, it has 660 sq ft on the upper floor and about 330 sq ft downstairs. Only the upper floor gets hot, so I don't need much.
I'm thinking of central AC or a mini-split. I have forced air gas heat, so there are heating ducts already. The heat comes out at floor level.
If I got central AC - does it cause a problem if you use the heating ducts and the cold air comes out at the floor??? I would think it would just sit there and make your feet cold, while there's a layer of hot air higher up?
Is central AC available that wouldn't be oversized for me? I would get one with a variable speed fan.
My main objective actually is to lower the humidity to below 50%. But I think I need AC to do that. Right now I open the windows at night to cool down, but if I were keeping the humidity low I wouldn't be doing that and it would be pretty hot if I were keeping windows closed and just dehumidifying.
Thanks for all the advice I've gotten in the forum. I've dehumidified the bottom floor with a couple of portable dehumidifiers.