thanks for the reply. can you explain the electrical bond issue or put a link to it. i am not really jerry rigging it. the heater along with a pump and filter are all plummed together and bolted to a pallet. the heater has a ground wire that runs off the copper heating pipe that would of course be grounded when i set it up. Is there something i dont understand that makes it any more unsafe (when hooked up properly) then a purpose build electric pool heater.