To the real estate editor: If you want to get some free hot water in your home next summer, run a hose around the lawn on the south side where it gets the sun all day; or run it around the roof if you live in a mobile home.
When you want to do the washing or take a tub bath, run the hose into the house to fill the tub with hot water.
Every hour or so, depending on the visibility of the sun, the hose will provide you with plenty of hot water -- the longer the hose the more hot water it will store. Mine is 100 feet long. All summer I had to drain hot water out of the hose before I dared to water my plants. Ella May Frazer Charlestown, New Hampshire