A contractor friend decided to take on a part-time job teaching at a local technical school. He had never done this before.

The second of five eBooks for the hydronics market is here! Brought to you by Plumbing & Mechanical, PM Engineer and Supply House Times, this eBook is a collection of columns and articles from John Siegenthaler, P.E., a well-respected hydronics expert and longtime columnist for PM, pme and Supply House Times.

I have an undated article from the “Handbook of Construction Techniques,” which McGraw Hill once published. The title was “Keeping a Cool Head.” Consider this in hindsight:

A question asked on The Wall at HeatingHelp.com caught my attention and had me thinking of you.

The measure of a heat pump’s heating performance is called coefficient of performance or COP. It’s the ratio of useful heat output, divided by required energy input, where both the output and input are expressed in the same physical units.

I’m concerned about what our phones are doing to the way we think and the way we work.  

U.S. Boiler Co. introduces a new thermoplastic-lined indirect-fired water heater for residential and light-commercial applications.

The AquaBalance wall-mount line of combination and heat-only boilers from Weil-McLain now features an energy-saving AFUE rating of 95% on the new Series 2 version.

The second of five eBooks for the hydronics market is here! Brought to you by Plumbing & Mechanical, PM Engineer and Supply House Times, this eBook is a collection of columns and articles from John Siegenthaler, P.E., a well-respected hydronics expert and longtime columnist for PM, pme and Supply House Times.

ADEY’s MC3+ cleaner works by loosening debris and scale so it can be harmlessly flushed from the system, while the MC1+ Protector is to be used after MC3+ and prevents scale buildup.