I'm about to buy a ready made PC grow box and grow a single plant, probably Red Dwarf. I can only put it in my attic, which gets damned cold during the winter, freezing or just above. The grow box comes with four CFLs, so I was wondering would they generate enough heat to keep my little Dwarf cozy? I was also going to try insulate the PC Grow case. The attic is my only choice, so I'd really appreciate any advice. Thanks