I might not be using the correct term, I had an electrician install it, but I just flip a switch and it cuts off the grid including back feed then the power in is through what I think is commonly called an RV panel allowing for generator connection. Do agree on operation and order of things, I have it written in the boxes.

My generator is the biggest one harbor freight sells. Might not be that beefy but I also don’t need much electricity during these events. I wouldn’t run laundry or my central AC but it’s enough to keep my pool pump running (we don’t winterize here, run nonstop during freezes as they are short enough the pool water never drops enough). Also, this model runs of natural gas which is a big plus for me so I don’t have to keep up with fuel. Keeping fridge running and furnace running is my highest priority but since all my lights are LED I don’t have to think about them. I’m giving the harbor freight one a shot first, my hope is that it last a long time since I’m putting little time on it. If longevity is ab issue I’d probably spring for a kohler or Honda next time.

I may add a soft start kit to hvac as last summer we had some outages long enough to be uncomfortable, twice cost us our fridge contents which is expensive and annoying. But primarily, winter protection is highest priority for me as the risk is highest