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.
In 1970, when I started in the heating industry, there was a battle going on between the folks who believed in catching and controlling the air in a hydronic system by holding it inside a plain-steel compression tank, and those who thought it was best to catch the air and just get rid of it using automatic air vents and diaphragm-type compression tanks.
There will always be fringe markets for products that use renewable energy to provide marginal heating comfort. These markets survive because early adopters willingly sacrifice superior comfort as the perceived price for using renewable energy.