Another thread to bump, just because it's interesting!
At IU, like a couple people said, most of the houses do have the cold dorm/warm dorm arrangement. Only AEPhi, Chi Omega, Delta Zeta, and ZTA don't (that I know of). Some of the houses do have it where you can either sleep in your room or in the cold dorm (for example, Delta Gamma, Tri Delt and AXiD)...they'll have, say, three to a room and two beds or something. (yes, I asked about this when I rushed!

) ADPi and AOPi's new house weren't built back then (ADPi's was being built) so I don't know about those...maybe someone from IU can enlighten me. (the old AOPi house had the cold dorm/warm dorm thing)
A lot of girls seem to love it but I know it would have driven me nuts!