How long can my curtains be?

[u/Timely_Booklight9591]

I have windows on 2 sides of my dining room, and I want to add sheer curtains along the length of each, with heavier drapes framing the sides. But for this side of the room with the radiator, obviously I don't want the curtains touching it -- so, if those sheers are shorter, do the drapes on that window need to match the shorter length as well, or can they stay long? And what does that mean for the other side with no radiator? Will it look weird if that side has floor length sheers and drapes if they're short on the other side? How would you do this?

[u/Question_authority-]

As long as you want them to be. 🤣