Hey, I am interested in purchasing a radiant heat panel but have a couple of questions about them.

How do they hold up in high humidity?

I've heard that they heat objects directly without raising the ambient temperatures around that object. If this is so how can you get an accurate temperature reading?

Do you use one with a combination of under tank heater or other heating device, or do you use it alone?

Which brand do you recommend?

Thanks for any input.