I have to say most of the concerns and comments that everyone has come up with are valid and things I have already thought of. The coolant would be routed like stated earlier, directly from the block or heads (depending on vehicle) and back to the pump just like a heater core. The thermostat...
I currently have a design to heat an automobile seat by placing a copper coil under the foam of the seat and piping hot engine coolant through the coil. How can I model the amount of heat transfer to the top of the seat if the bottom and sides of the coil are insulated so the heat can only go...