Flex Watt doesn't seem to penetrate tub?

[snow_princess]

I think you pretty much nailed it. I run 3" flexxwatt in my 32 quart racks. They do little to up the ambient temp, I heat the whole room to high 70's to get 80 in the cool side of the tub. Flexxwatt doesn't have that penetrating type heat, rather it seems to warm the surface of whatever it's next to. Don't get me wrong, it does some but the air temp of the room has to come up.

JonV

You know that is exactly what I told my bf we should do last night! I'm glad this happens to other people, I thought we had defective equipment or something...