I am looking to move Jafar from the aquarium into a tub and am trying to decide about how to heat it. The room he is in is pretty cool (about 68%). Right now, I am using an uth and a heat lamp. With the heat lamp off, the cool side temp drops a lot. So I want to move him to a tub and I am thinking about flexwatt. However, I talked to Rich at ReptileBasics and he did not think that that the flexwatt on the hot side would keep the cool side warm enough. I have seen people on here talk about having a piece of flexwatt on the hot side as well as the cool side with two thermostats, but I don't really want to buy another thermostat. So, I was also thinking about heat cable with which I could adjust the concentration of the cable under the tub to create a good temperature gradiant with just one thermostat. Has anyone tried this? If so, how did it work?

Thanks.