I bought this to warm up our two car garage which also doubles as a home gym. It's very simple design with just an electric fan, push button valve, and an ignitor, which I hope will mean that it will last a long time. Since we use it on a daily basis in the winter, we purchased a GasOne 50120 Propane Gauge to function as a POL to QCC adapter. It makes life easier when disconnecting and reconnecting the tank, as well as serving as a quick indicator for pressure in the line. I forgot to turn on the fan first before lighting it up, and it automatically cut off the gas when it got too hot. Part of the label melted on the unit housing, and as a result, now serves as a reminder to plug it in before lighting.

This heater puts out plenty of heat for my 24x24 shop. Can't run it continuously unless the weather is below 20. That's ok, the propane lasts longer that way