I have heard and also saw another post that mentioned that the coyote always has the coolant that goes to the heater circulating. The FFV heater has the flow shut off when the heater isn’t on.
My question is, is it bad for this motor to use the FFV heater set up? Could I put in a T and run a bypass hose so it is always circulating? Or would this make the heater not work very well when I want it?

Thanks,