Not very savvy with electrical issues either but if the tech said it should handle it, just make sure that he knows that there may be other things running off the inverter at the same time. As I mentioned earlier, I have a 2000 watt inverter in my coach which has a residential refrigerator. I would think that you may want a larger inverter to be able to handle the electric load. Also, do you do a lot of dry camping? If not and you don't run too much off the inverter while travelling, you may, as the tech said, be fine with the inverter you have.
Tom and Margaret
2014 Berkshire 390bh-60