Technology in houses allows nearly instant control of its systems. Remote sensors and chips built into appliances even permit off-on control from a distance — with one exception: hot water. Waiting ...

Q: I am having a problem with hot water in my 2-year-old house. My bathroom and water heater are located on opposite sides of the house, and I have to wait forever to get hot water for a shower. I ...

My friend Gary Klein, Affiliated International Management, has been crusading about saving hot water for a long time, starting with home use. There are a lot of dumb home plumbing systems out there, ...