I Was Wondering What Is A Good Model Temperature Controller To Purchase. I Have Read Recommendations On Rancos And Johnsons. And Also Some Good Sites To Purchase Them.
I have a Ranco ETC single-stage and really like it. It can be set for heating or cooling and allows setting the differential (dead-band) as well. I had a Johnson & it fried itself. Don't know about a site, I purchased mine at a LHBS