I needed and still need more of these propane heaters in case of a power outage as we had this last winter. No electricity in 15 degree weather. I would need 5 of these to keep my homestead from freezing. Now overly propane efficient, but they do put out the BTUs. A total freeze up would have been a complete disaster.
This was actually purchased for MN deer season (stationary stand), and so I haven't put it to use yet (besides, the weather has not required it). I'm basing my rating on the other 3 Mr Heaters we own. Happy with them all!
I am glad I bought this little heater to use on cold days of hunting and fishing. It lights easily, warms up fast, and keeps small areas very warm. It's light and easy to carry. It runs a long time on the small bottle. It makes hunting and fishing during colder months a lot easier to tolerate. I strongly recommend you consider this leader if you are shopping for one.