Here's an excerpt from a nice little intro piece on tankless water heaters from Philip Proefrock:
Tankless water heaters have no hot water storage (hence tankless), but can quickly raise water temperature by as much as 50 degrees F (~30 degrees C). They can do this with a flow rate ranging from 4 gallons per minute (GPM) to as much as 9 GPM. Tankless heaters are also much smaller than conventional water tank heaters, which can be a consideration for smaller homes where space is at a premium.
(Head on over to Green Building Elements to read the rest.)
Edited by stins - Fri, 21 Mar 2008 23:34:09 GMT
