Gas and Oil Home Heating Furnaces - condensing gas boiler

I currently have a high efficient gas boiler that continues to recurrently malfunction. I wish to replace it with a highly efficient condensing gas boiler. To review the manufacturer's info all are superb. The one I bought 9 years ago was also supposed to be superb. Does anyone know of a place on the web I can obtain info on reliability and functionality on these types of boilers. I have reviewed the propaganda on Munchkin, Lennox, Weil-Mclain, and Peerless to name a few. Thanks for any insight. I don't know the accuracy of the the claims from the above companies, but personal knowledge of Glow Core shows that at least some companies inflate their claims.

try over at www.heatinghelp.com lot of so called wet heads there;) ED