Carb Cleaner wrote:
I had not heard of these{inverter MW}. A quick Google revealed a few different models. Very tempting.
It would've been tempting if there were any numbers of energy efficiency comparing inverter MW to a regular one. For those who do a lot of cooking on MW in their homes, inverter model is probably a good choice because it cooks "smooth-er", without intermittent heating-cooling of old magnetron technology. But for RV - I don't even know what the fuss is about. For most RVers MW serves two duties - boiling water and reheating leftovers, and either one can be done perfectly well on propane stove.
A proven way to reduce the energy draw of the MW, be it an inverter model or a regular, is getting a smaller one, 0.7 - 0.9 cu.ft, with LCD display (not LED), and with mechanical timer.
SMK is right - the sweet spot is 300W inverter for low-power devices and 2,000W inverter for high-power ones. That is, if you have those "high-power devices". Mostly, it's MW, coffee maker, hair drier, some toasters. Yes, you can camp for a while without any of those.
It's odd that your low-power A/C loads exceed 300W. Shouldn't happen, unless you run your DVD, gaming console, and laptopS (how many??) - all at the same time. I was unable to exceed the capability of 170W inverter, with just me in the trailer. There is no gaming console, of course.