Hi, my first question is why are you getting a T3 when a T8 is a foot bigger, cheaper, and will get to you quicker (since it's a "quick ship" item through AP)?
In regards to your question regarding heating, I'd recommend a RHP over the UTH because it will help with keeping ambient temps up. The UTH will just provide a hot spot but won't do too well with ambient temps.
If your ambient temperatures are ok and you're looking to provide a hot spot, you can buy heat tape from Reptile Basics by the foot (i believe it's $3/ft) and buy whatever length you want.
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