Great! Aug 21, 2016

Had this boiler for 2 winters now in MA. First winter was hard. This last one less so. Great product. Made is USA. Cast iron. Will last forever my plumber tells me. Still 84% efficient. Doesn't need yearly maintenance like the higher efficient junk out there. That high efficient junk also requires a power vent that is super loud. Consider that too in your purchase. This Burnham is very quiet. No power vent. I use an old school dial thermostat and set it at 67. When I get my heating bill... more

As Advertised Apr 15, 2016

Easy to install, noticed decrease in gas consumption on first bill. Good quality, delivery was smooth. Good deal.

Easy To Install Jun 10, 2016

It ran quietly.

Rene In Moscow Oct 16, 2016

Very happy with this unit. It is a lot more efficient than the previous Coleman unit I had. A/C man was very happy with its ease of installation. Thank you.

Williamson-thermoflo Gsa-250 - 157k Btu - 83.0% Afue - Steam Gas Boiler - Chimney Vent Review Aug 06, 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.