OK I've read all the books and many sites.I am starting on plans for a rack system, I'm a little confused as to which heat system would be best. So I thought I'd asked your advice of what you used for heating your rack systems, and if you use a reostat or thermostat to control the heat.? Also do you have light system! I read you need lights,and also read that you don't need lights? So do we or don't we need lights? I appreciate your advice on this subject.Thanks
Joni

