Thank you roger. Youíre advice has been very helpful. The windows are brand new (our house was built last year) and we had heated tiles installed specifically in her room for her. We also had our builder drylok her room. She spends the summers outside in her outdoor cage but in Tennessee we canít leave her out year round. As for billybob, I hope you treat other owners with some level of respect as it goes a long way, and it would be a shame if your rude demeanor caused someone who actually cares about their iguana to give them up because you simply disagree with the way they keep them.