Owner, Custom Made Aug 25, 2016

I replaced a Dunkirk XEB-3 (20 yrs. old) with the Dunkirk boiler above. The new one is all most identical to the old one, that is the pipes were located same as the old, so gas and water lines were easily plumbed. The old electrical wires could be used although lengthened to connect to the digital controls. The circulators location has changed, it's still provided with its wiring provided. Venting is the same as the old one. I was happy to get another Dunkirk that installed easily.

Home Restore Aug 23, 2016

Purchased this model due to previous reviews to install in a home for my son. Home is a small two story that was gutted down to studs.

Powerful But Rattles Jan 29, 2016

We purchased this to replace our old existing heaters as well as get more powerful heaters to heat up our space. These units are clean looking and powerful heaters, but they rattle and are noisy. You can see the metal bracket inside is loose and it was designed as a separator between the heat exchange, but it is not mounted security, so the air causes it to rattle.

Easy Installation Aug 10, 2016

I'm very pleased with how easy the installation was and the domestic hot water is fast and plentiful. I am amazed as to how quick the boiler heats and circulates the water through the system, I am curious to see how efficient it will be come winter.

Williamson-thermoflo Gsa-100 - 62k Btu - 82.9% Afue - Steam Gas Boiler - Chimney Vent Review Sep 14, 2016

Built by a division of Weil McLain the boiler it is similar to their products. Seems to be build well and I hope to have years of trouble free working status. A little difficult to install given the position of the ports. I will recommend this product to others.