Striving for hydronic ideals in heating systems Let’s start with heat exchangers. John Siegenthaler, P.E. May 23, 2016 Strive for what seems impossible at the present.Read More
Simple yet elegant hydronic systems As the North American hydronics industry has grown, so has the complexity of its systems. John Siegenthaler, P.E. April 19, 2016 Hydronic systems donít have to be large or complex to be state-of-the-art.Read More
How to optimize coil heat exchanger flow Flow face off. John Siegenthaler, P.E. March 21, 2016 Many systems that use renewable energy heat sources have large thermal storage tanks. Read More
Pellet boiler control strategies The control logic for this system was based on a pellet boiler that operated under its own internal controller. John Siegenthaler, P.E. February 16, 2016 Outdoor reset can improve performance. Read More
A simple boiler retrofit During the last year I’ve been reviewing submittals for proposed heating systems using pellet-fired boilers. John Siegenthaler, P.E. January 20, 2016 Details matter when adding a pellet boiler to an existing system. Read More
Controlling a dual-heat system John Siegenthaler, P.E. December 21, 2015 Orchestrating the wet-side hardware.Read More
Piping a dual-heat system John Siegenthaler, P.E. November 13, 2015 Combining low supply water temps with low-mass panel radiators.Read More
Air-to-water heat pumps and boilers John Siegenthaler, P.E. October 23, 2015 How to combine an air-to-water heat pump with a boiler. Read More
Solar freeze protection John Siegenthaler, P.E. September 28, 2015 Why I prefer drainback solar thermal systems.Read More
Respecting the law of thermodynamics John Siegenthaler, P.E. August 20, 2015 Myths and methods for protecting boilers against flue gas condensation.Read More