I had the same issue... room got to like 95 in the summer and its in the -'s here in upstate NY... For the summer we bought an air conditioner with a thermostat built in... If the room got above 80 it would turn on... For the winter we did the exact opposite and got a oil based heater to heat the room... I keep mine set at 69 which gets my cool side temps around 78-80... Id keep the UTH and work on finding other ways to heat/cool the tanks... In all honesty an air conditioner for the summer is probably your only choice... in the winter you can go with an oil based heater or maybe hook up a ceramic heat emitter to a thermostat to keep cool side/ambient temps around 80. Good luck, I knows its a pain in the arse... ive been there