I hooked it to a battery, fueled it, pushed one button, it started and ran for hours.Strong fan, little exhaust gas smell, no smoke at all.Uses quite a bit of battery, I'll say a group 24 in 8 hours.It's very nice, very portable and didnits thing.
Amazing value - it comes with everything you need. It has fired up every time and runs well - big improvement over the last few years with these heaters. I did find the fuel filter to be fragile and I easily broke it, still 5 star
Domenico 
