Originally Posted by Brock
I was thinking of getting one last month, but the plumber talked me out of it. I was completely sold on the idea before that. He told me that most people he knew of who had them weren't satisfied with the amount of hot water they were getting. I wasn't going to take a chance on a couple thousand dollars, but maybe you'll get different advice.
Isn't the whole point of these that you don't ever run out of hot water? How does an on-demand water heater run out of hot water? Or, is it just not working as advertised?