Williamson-thermoflo Gsa-200 - 125k Btu - 82.8% Afue - Steam Gas Boiler - Chimney Vent Review Sep 12, 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.

Reznor Udap Series Oct 03, 2016

We purchased 75,000, 120,000, 150,000, and 200,000 BTU units, 28 units in total. The 83% efficient rating helped us offset the cost of the upgrade by being eligible for a rebate from our utility. All heaters were installed and work beautifully. The heaters look great! They are installed in a warehouse with great WIFI access so we controlled all 28 individual heat zones using 28 WIFI thermostats from Honeywell. Couldn't be a happier customer! Now management has control of all 28 heaters with... more

Great! Jun 03, 2016

Loved this unit! Easy to install, both the A/C and heat worked well. Perfect!

A Great Little Fan Sep 04, 2016

I bought this in-line fan to pump warm air into a chase containing hot and cold water pipes. When outdoor temperatures drop below 15 degrees Fahrenheit, the air in the chase falls below freezing, so I was worried that the pipes would freeze. This little fan together with flex duct (I stripped away the outer insulation) solved the problem. I have a thermostat in the chase and a control system that turns on the fan when the chase temperature drops below 40 degrees F. Now I can spend time... more

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.