She doesn't use her claws other than to slightly scratch the chair I sit on. That's it. Just the chair. She doesn't use them to attack or to scratch anything else.
The heat thing... I'm gonna try to go through one round. If I can handle it, then she doesn't need it. I don't think she'll spray anything. She's not really territorial. Otherwise I'ma have to pee on her and put her in her place. (Because that'll work... right?)