Q I'd like to install instant hot-water heaters in my home. Where can I obtain some information about them? Charles Huus Union, Maine
A "Side-arm" tankless, instant hot- water systems are available in the US. Here are the names of two manufacturers: Thorn Gas Appliances, 25 Valley Drive, Suite 110, Greenwich, Conn. 06830, and Chronomite Laboratories Inc., 21011 South Figueroa, Carson, Calif. 90745. Of course, there are other manufacturers as well.
Instant tankless hot-water heaters, fired by either gas or electricity, are energy savers. They have been used in Europe for decades and now are coming into their own domestically.