Hello everyone, my chicks are 3 weeks old..my house temp is 75° and my chicks are not using the heating plate..they do however sit on top of it and poop on the paper towel and tear it off leaving an awful mess and smell. Since they are not using it anymore can I remove it..also I'm in NC at what age can they go outside bit inside the chicken coop if I have a heating source like the plate or a lamp? BTW I have 8 chicks if that matters