Are UTH necessary?

I'm using that hydro farm one off amazon. No complaints yet. Have a Walmart thermometer double checking, but it's working really good on my tub.

I use and highly recommend the Herpstat 4. (4 independent outlets)

The herpstat 4 can do more than pretty much another thermostat (control lights/Proportional heating/non-proportional heating/cooling/humidity/day cycles pin each channel/night cycles on each channel/ramping between day and night cycles) and has a back up relay that will cut power to the unit in the case of a thermostat failure (ensures that the thermostat cannot fail in the on position)

They aren't cheap but they are worth it for sure:

http://spyderrobotics.com/products/herpstat_4.html

http://www.spyderrobotics.com/store/...35bb592c6f4c8a

Thank you everybody! :)

Be careful with the walmart thermometers. I found they're wildly inconsistent. I was getting crazy temp readings and discovered they're just not that good. Two probes in identical spots gave a difference of 7 degrees!?!! One was correct the other was off 7 degrees.

I've switched to the temp guns now. They're more $$ but worth it IMO.

As for the op, if you live in a moderate climate You can get by without any heat for corns. None of my corns have heat. They're at RT year round. Never gets above 80 in summer or below 60-65 in my house in winter. They'd eat, breed, grow, etc just fine. If you're up north where there are serious winters then it's a must. But for Texas, Florida, etc don't need it.

i live in Ontario Canada. it gets prettty cold here. -30 in the winter is not that odd. Ive kept corns for almost 20 years with out a single problem and mine have always been maintained at room temp. some where from 68-78. i have to say that a UTH is a waste of effort and money. unless of course your home is kept very cold.

OK, so I settled on the Reptile Basics; model ve-300 It seems like a pretty nice unit!! Got it mid week, just setting it up right now :)

I've set the the day time temp to 83*...sound good? What should I set the night drop too?

12hrs 2 83 & 12hrs night drop??

There's no need for a night drop.