One problem that came up for my father and my aunt was that they did not want to work (cleaning my grandfathers garage, hes in a nursing home now :-/) during the summer in the garage. Now i was wondering how feasible is a portable air conditioner? If say, at the 'hot coils', instead of air, you put a lot of water but not so much as to make it non-portable. Then after a while, you'd have to dump the water and refill it of course. But how long could you run the air conditioner before the water becomes too hot to work as a heat transfer unit. Theres a big danger of course of pouring out like, 600 degree water ... a lot of which would vaporize as u begin pouring it. The water would be enclosed by a variation of a dewar flask i suppose to keep the water from leaking off too horribly. What does everything think about the feasibility of this lol.