My toy hauler had a 5500w Onan with a dedicated plug for 50A output. I was able to reasonably run my house off our toy hauler that I had parked on the street plus I had 40 gallons of gasoline on tap. Our truck camper generator is only 2500w, so we just move to the camper instead of trying to power the house but we can plug our house fridge and freezer in to the TC with long extension cords.
Our home does not have air conditioning, so I will hop in the camper if we get a heat wave and crank up the air while I watch my neighbors wilt in the heat.