Other diagrams I've seen either show a 'flue collector' that the flue rests on, holding it several inches above teh heat exchanger, of include a tab on the flue that I assume might keep the bottom of the flue opening several inches above the exchanger? This is a laars lite 175 model. I've just had to replace the exchanger and wonder if this may be part of the reason that it began leaking after only 6 years.
yes it should sit on some kind of flue that keeps it off the exchanger, but more than likely didnt cause your leak problem. most of the time the exchanger goes out is because of poor chemical balance in the water. i dont know all the details of your pool so im accusing you of something, but you did get 6 years out of your heater. which is pretty good.
