Samlex Inverter Power Draw Question

A combination inverter charger converter may have been a better choice. It took me awhile to figure out the three separate devices, the charger and DC to Dc were first decisions then I decided to add an inverter. I considered the Renogy but decided the appliance is most likely to run is the microwave. Late night warm milk helps me sleep. It’s hard to tell what surge this inverter could take for 5 min. Kind of a problem with the specs. I saw several combination devices but I had just upgraded the others. We were camping this week but on 30 amp electric and everything works even at the same time! I may have to upgrade to a 30 amp outlet at home. I used the inverter in the boat launch parking lot to inflate our Intex boat. Nice to have it onboard. Next is solar right?