Tankless water heater for the house...
http://www.accentshopping.com/ImageG...&IMG_Width=350
10 gallon water heater to circulate hot water(with a pump) throughout the whole house to have on demand hot water....
Attachment 55785
Reverse Osmosis system for drinking water...
Attachment 55787
Water filtration system for the whole house...
http://images.buzzillions.com/images...687885_175.jpg