thanks guys.
Even though this is a large pot for some of you that are into smoking and then finish in a water bath, you can apply the same process for a turkey deep fryer or roaster. The air pumps come in all sorts of sizes and they provide the agitation that you need to keep your baths from having any hot spots. All the same equipment could be made to work with propane or electric systems. The control relay can turn anything on or off. If anyone is interested in the equipment they can PM me.
Kirby