Why would you say that's not allowed? I have the rare luck of renting an apartment close to Frankfurt/Germany that has an Split A/C built in. It's obviously l

Why would you say that's not allowed? I have the rare luck of renting an apartment close to Frankfurt/Germany that has an Split A/C built in. It's obviously legal, it's just uncommon, but that is in a large part an artifact of the high ratio of renters. Landlords don't see an A/C as an particularly value adding addition to their investment, and tennants don't really get to pick and choose. The A/C in my apartment was installed by the previous tennant, out of his own cash and simply left it installed when he moved out. The owner doesn't want to have anything to do with it and when it breaks i'll either have to replace it, or leave it there broken...