Quote Originally Posted by The Serpent Merchant View Post
these questions really need to be answered first:

1. so the air temperature in the tank is 78 degrees but is there a basking spot where the temperature is higher

2. Does the thermometer have a probe?

3. You said that the tank had a UTH, does it have a thermostat?

Temperatures are far more important that humidity, they need to be your 1st priority bar none.

Because tubs have less volume they are easier to heat but in a room as cold as yours you are going to have issues no matter what set up you have.
Please answer above questions if you want help, it's hard to tell you if it's a bad idea w/o all the info.