What is the life-span of a tub? What is the longest operating tub?
Lifespan…15-20 years? The plastics not going to break, the auger is Stainless steel, the auger motor and gear box are industrial quality and run very seldomly (10 min/day). The blower motor runs continously and may burn out after 5 years and need replacment. I’d say the lifespan is quite long. It basically a giant kettle with a really sturdy mixer. Not a whole lot of moving parts. Longest Tubs in operation, I believe is about 3 years (when we started making them in their current production form). Prototyping and development had occured for a few years before that.–Stephen LaMarca, GMT The lifespan of a tub is estimated to be about 10 years. The longest operating earth tubs have been in the field for about a year-and-a-half.
