The choice of an inverter is somewhat problematical. We have a Kitchen Aid 18 cu ft French door household fridge, and run it on a dedicated inverter. The refrigerator uses a conventional start setup with capacitors, and not the printed circuit board start setup. Accordingly, we run a Tripp Lite PV 1250 FC modified sine wave inverter. The surge ability on this unit is rated to surge to 1875Watts for up to an hour and 2500Watts for 10 seconds. This inverter has run my Kitchen Aid, a 16 cu ft chest freezer, and a 3 1/2 cu ft basement freezer, all at the same time and full of fish on the way down from Alaska this summer. When I made a mistake and caused all three units to start at the same time, we only saw a 90% load indicating on our monitor panel.
