I ran my 1 KW Yamaha for 3 hours today at work, once the crane cab reads 90+ I fire it up and close the doors. The little AC unit I have draws 450 watts on high so a pretty good match for the genset. I remember that in my research prior to buying it, it weighs 1 pound (ONE POUND!!!) less then the 1 KW Honda, was 1 decibel quieter, and was at least equally highly regarded for lifespan etc. I burn nothing but E-0 in it, always run it dry at the end of the year, and it's never failed to start in about 2 or 3 pulls at most.
I don't pack it in the plane, no need (Starbucks Instant is my coffee fix for plane camping) though if I ever get the urge to winter camp (no thanks....) with the skis on, it would be more than enough for my engine pre heater.
