Maybe placement of the unit makes a difference. I've run the microwave drawing near 150a plus my other misc loads nearing 165-175a for 45 minute. This past spring, summer daily running the 15k A/C unit for 3 hours off of solar/ batteries then switching over to the eu2200i for many hours after that. I do leave the top portion of my front compartment open to vent the hot air out from the inverter.
My personal experience with 1,883 days of boondocking use has been great with Magnum equipment especially after adding the easy start to the air conditioner. Even charging the batteries is easy with the eu2200i, set the incoming loadshare to 15a and the batteries are charging at 100a. SOC right now is 38% in 3 hours 60% will be replaced in the batteries for 98% SOC maybe tomorrow will be a better solar production day.
