Just be aware that 3500 w will be minimal at best. You will in all likelihood not able to run ac and microwave at same time since the 3500 is peak watts. Look for something a little bigger and with remote start like champion has/had since you will not be wanting to go outside to start in inclement weather. I had a 3500 unit from champion, remote elec start on my TT since we wanted to be able to cool the unit when traveling in hot weather. It was a rv setup with 30 amp but the techs at champion were the ones to tell me about the ability to run high draw items together with it. Check camp world they sell champions or look at amazon etc 1st.
