Be aware that it's a double edged sword.
Circuits that are connected to an inverter, can be limited as to the total current that can be used. My inverter has 4 circuits connected to it (each has 20 amp breakers).
However, my inverter is a 2000 watt inverter, and it is powered via a 30 amp breaker (while on shorepower). Therefore the TOTAL of all of the 4 circuits, is now limited to 30amp in total. The converter also draws power, so you really can't even use all of the 30 amps. You cannot draw 20 amps on each of those individual circuits.
If instead of being on shorepower you are boondocking and running off batteries and the inverter is working, then the 2000 watts is pertinent (17 amps), and those 4 circuits are now limited to a total of no more than 17 amps.
If you have a couple space heaters, each one draws just under 15 amps. If all of your outlets are connected thru the inverter, then when connected to shorepower and it's cold, you are pretty much limited to only a single heater.
I get around this limitation, by using the washer/dryer plug for a heater, which is a plug that is NOT on the inverter. I also have a string of sockets on DS behind coach, which are NOT on the inverter either, so I can plug a heater in there.
DaveB, Raleigh, NC
2015 Tiffin RED 33AA, w/Honda CRV
VMSpc, Magnum BMK/ARC50