"Yes if your house batteries are low then you might want to turn off house energy users to maximize what the house batteries can do."
No, that too, but I meant the loads on the engine battery that are on in "ON", but get cut off when you go to "START" so they are not on at the same time the starter is on.
I think you would need to turn off your "climate control" or whatever fans you have in the cab yourself.
Also you would need decent wiring from the house side, not the long #10 like I have. Mine is fine for charging amps to the house with my low amp alternator (pre-1992 Ford), but not so good if I had one of those MOM deals to start the starter at high amps.
