Quote Originally Posted by boasandballs View Post
We use the 3" 6 watts. It's about the same price to buy, but it will cost you less over the year in electricity.

I have had the probe come off, and the 10 watt tape got to hot and burned a hole in the tubs.

The 6 watts is all you need IMO.
Isn't 3" space of heat kind of a small space for an adult bp?