It's pretty nice with a three cylinder diesel engine, 1800 RPM, liquid cooled, and a ton of features.  They are expensive and harder to find.  Thanks to my friend, Chris, I was able to test one on camera for this channel.  

Let's see how fuel efficient this generator is at recharging a large off grid battery bank.  Usually off grid people (me included) use solar for supplying their power needs, but sometimes the sun doesn't shine.  It's nice to have a fuel efficient generator for helping out.