My appologies to anyone who has been trying to E-mail me via reply-to, using my name BRIAN WOOD, from follow-ups to viewer questions. My software was directing your replies to a .com address instead of .net my system administrator here in Lake Charles LA just helped me fix it. So if anyone has any questions on Tankless waterheating, electric or gas, please call me at 1-800 851 9891 (up to 10.00 PM is OK) We have access to units ranging in size from 3.1kw/120V for hand washing- to 144KW/480V/3ph and 40,000BTU for campers to 4,000,000BTU for Olympic swimming pools. We also supply "Best Power" UPS systems for computer/office power protection. Again, I'm sorry for missing anyones' E-mail, it should be OK now. Happy New Year everyone, keep up the good work Doc. Brian Wood the Waterguyser at HOTWATER@STRUCTUREX.NET.