The heater itself works well like most of these... If you intend to use it in the enclosure as a portable unit, my fuel tank leaks so that would be a problem. If paying full price, some of the accessories are low quality (if it matters to you); but if you are getting it on sale for parts, it's excellent. Replace the marred up aluminum fuel barb in the tank or use something else as a fuel tank and it's good to go. The instructions don't mention anything about how to use the controller, but it's easy enough to figure out.