Averitt and what's allowed in the truck.

They all do now as far as I know.

And as chopper mentioned, the newer trucks have an additional outlet under the edge of the bunk just like a regular wall socket.

 

I just remembered having a 2008 Columbia back in '07. That was when they had just started adding APUs to existing trucks. It wouldn't run my 900 watt I brought from home and I didn't think to try a smaller microwave at the time.

So a few years ago I tried a 700 watt on a different truck and have just used it ever since. Maybe the APU/inverters they are using now have more power than the older models.

 

I don't know if they are better now or not, I have a Comfort Pro apu on my truck and I think it is louder than the Tri Packs on the other trucks

 

The heater isn't nearly as good on the Comfort Pro either.