Excellent Sep 21, 2016

Excellent! I use this in combination with solar. I really like this one - we have three others.

A Great Little Fan Sep 16, 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

Business Owner Jul 23, 2016

Great product but found the pressure sensor only works if the world is working perfectly! Meaning the venting must be in excellent shape and does not come apart in the walls or the power is a reliable source. This was installed in one of our customer's homes. Installation straight forward and worked well but then it became a nightmare. Multiple calls back and a real money looser. We put it to bed by bypassing the pressure switch (and installed a voltage sensor on the electric clothes... more

I Ordered A New Boiler, You Delivered . . .peace Of Mind! Sep 15, 2016

Several years ago my wife and I purchased an old 3 story Victorian style home in Norristown, PA. The house had an old oil fired steam boiler that literally vibrated the floors every time it started. Well, last winter the old boiler sprung several pin hole sized leaks and shortly thereafter it failed. I started doing research and found your website, used your calculator and made the purchase. Once delivered, my wife and I took over from there with the installation. We went from an old,... more

Thank You. Oct 01, 2016

Unfortunately, it took too long to receive my furnace. I guess I didn't understand the delivery/shipment process. However, the furnace is working well and I am thankful for that.