its an indoor all sceen cage. my wife likes to have the a/c on full blast 24/7 so dont like to change it.
skot
Skot,
Does the chameleon getting a draft from the "full blast" ac 24/7?
In this case, I have a feeling you will encounter a problem with your chameleon soon.
Another thing is (assuming your cham is veiled or panther) the necessity of 10 degrees drop at night to induce deep sleep for your chameleon.
Having a night light on 24/7 can quickly become a problem.
Unless you and your wife loves to be sleeping in a house with temperature below 40 degree F, imho, I do not think your chameleon need the heat.
If I were you, I would be more concern on the humidity level you are providing for him. Air conditioner and heater robs humidity like nobody's business.
This morning I found out the humidity in my reptile room drop to 13%!

The whole day now, I have been using humidifer on strongest setting to bring the humidity up to 49%.
Idk where do you live (it doesn't seems like you are in US..).. But, here, the weather has been odd lately.. Doesn't it feel like summer already in the beginning of february?!