School me....the cheaper units.....5500w for around 700-ish, the problem with their AC power is from engine fluctuations? I've read a lot into their "dirty" power reputation, but is this "dirty" power from the engine speed differences when there is a load and when there isn't a load? Example, I got it running nice and smooth at 3600 rpm. Now the HVAC kicks on, and I can hear the genset drop RPM's for about 1-1.5 seconds, during that drop, the voltages decrease? My reasoning for questioning is that I've read you should not use these chonda gensets on sensitive electronics such as computers and flat screen TV's. During the last ice storm, my HVAC worked fine, but about a month later, a circuit board got fried and I wonder if it was because of my genset.