DIY electric water heater, patented super efficient,safe, 60 year life. Horizontal un-pressurized e.W.H. For $200.Need 30 gallon open head drum $65, 300' pex-al-pex $77, 2x1 bushing $9 3 3/4' bulkhead fittings $15 heater element $10 thermostat $20 plus cpvc & pvc pipe and fittings fill/drain vale no maintenance, no safety valve, no explosions, water leakage limited to tank size not city reservoir, $50 buys published patent, parts list, build out & operating instructions, 3 e mails questions answered, Bruce ME sse #1985