Flex Watt Placement?

[mcd]

Hi- looking for some info on where to place the flexwatt on the rack I'm building. From the photos I've been looking at of other people's set ups, some seem to run it straight up the back of the rack, and others seem to have it under each tub.
My set up will be 4 shelves, 2-3 tubs per shelf (depending on tub size).
Thanks.

[Patrick Long]

I go with Belly Heat all the way.

Back heat seems to work better if you rooms temps are exremely stable.

But I prefer the belly heat.

[Wh00h0069]

I go with Belly Heat all the way.

Back heat seems to work better if you rooms temps are exremely stable.

But I prefer the belly heat.

I second that.

[southb]

How about putting the foil tape under the flexwatt? I've heard that it helps heat the item above it better. Anyone know?