Chances are the inside stove is a low pressure and outside is a higher pressure appliance. This results in lower and higher BTU output. Answer for inside Is a smaller percolator, or just heat it on the outside stove. This is normal for most RV’s. Probably not a plug or restriction. If you have even flame inside, with proper even flame color, you burners are fine.
2018 Ram 3500 Crew Cab Laramie 6.7L, Aisin, air ride, Ram puck prep, SuperGlide 20K auto slide.
2018 Bighorn Traveler 4 slide w/Apt.
It’s not what you’ve done that commands respect, it’s what you do.
Happy Campin’