There you go again Beer, I for one have not seen a Microwave Water Heater on the market yet, so I assume it is not that easy to go from concept to product but Wanderport seems to have done it. As far as the ground fault, I have never seen a water heater tankless or not that has one. They are installed in an outlet but then water heaters are usually hard wire'd. So having a ground fault directly attached to our product took at least some serious planing. It not only would have to be directly attached to the circut board but also be capable of shuting the electricity off as well as triggering a cut off for the water as well, don't you think ?