Advise for how to heat my tank

[mrshawt]

Remember, if you use 2 UTHs, you need two thermostats, or a dual thermostat.

Not exactly true.

What I used for my old 20L tank, since I had to use two UTHs was:
I got a Repti temp 500r and two Lutron 300W dimmers. Plug UTHs into dimmers, set temps to 95 and 85 for warm and cool side, respectively. Plug dimmers into thermostat and set dial to appropriate level. This way, both a warm temp of 93ish and cool of 83ish are maintained.