On his blog, Andrea Rossi asks for help regarding turbines for electricity generation from his eCat-powered heat systems.
I checked out the blog. Rossi says he doesn't know much about turbines.
If his device produces enough heat, he may consider a Stirling device. It works off any heat source. I don't know if it is the best option, though.
By the way, good morning. It is already going into the fourth week of July. Time flies, doesn't it?