I will show you how to build a cheap and easy water heater to use for camping, hunting cabins, or anywhere that hot water isn't readily available. I have also include pictures of my finished product. I travel a lot in my motor home and don't like using LP Gas so I tinkered with some materials and came up with this. All in-home water heaters use a lot of energy but the one I built uses less than 1200 watts (10 amps). I wouldn't recommend using this in a house unless you modify the directions as standard houses use water pressure (town water or well). When I camp out, I take a 1500 watt power inverter and hook to my car battery to heat my water. I went to Wal-Mart and purchased a shower tent and used cpvc to run into tent and put a valve and a shower head on and it's ready to go.