N2GN2 wrote:
I purchased a 300 watt go power and an inline transfer switch as suggested.
Cost is always an issue but given that you've seen the advantage of a more costly PSW inverter over an inexpensive MSW and are going to the trouble of installing a transfer switch so you can wire the inverter output to automatically feed your trailer "whole house" I have to wonder why you wouldn't have chosen a much more versatile 1000 watt PSW inverter capable of running a coffee machine, toaster, even a hair dryer if necessary. :h  I did, for those times we lose campsite power but still would like to have some limited use of our 120 vac appliances. :)