The same way all the cruising boats use it for their water heaters and the RV application of that block uses it for cabin heaters.. There is a suction side of the circulating pump. Its the plug next to fat bottom hose. There should also be a plug on the thermostat housing or intake manifold. Use those. Sure will make winterizing easier and you will have regulated heat at a constant 160* at the coil. Like I said, call PCM to get the exact location of each tap point. I only gave you the general area as i dont have one my driveway to check. It is 100% doable and the only option when you have closed loop cooling IMO.