Flex Watt doesn't seem to penetrate tub?

[nevohraalnavnoj]

We placed the probe in a dummy tub for a while in the hopes of raising temps but that didn't work either...? Am I asking too much of the flex-watt to raise the ambient temps in the tub?

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