Plumbing in 2005

Hot Water from the Sun: A Consumer Guide to Solar Water Heating by The Franklin Research Center, Dept of Housing and Urban Development, U. S. Department of Energy

Plumber's and Pipe Fitter's Calculations Manual by Woodson, R.

Hot Tubs, Saunas, and Steam Baths: A Guide to Planning and Designing Your Home Health Spa by Sanderfoot, Alan