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
Biomass boiler cycling John Siegenthaler, P.E. July 20, 2015 A significant temperature change is needed for effective thermal storage.Read More
Controlling wood-fueled biomass boiler systems: Part 2 Cooperative effort. John Siegenthaler, P.E. June 22, 2015 Every elegant hydronic piping assembly deserves an equally elegant control system. Read More
Piping for wood-fueled biomass boiler systems: Part 1 The market for high-efficiency boilers that burn cordwood, wood pellets or wood chips is growing in North America John Siegenthaler, P.E. May 21, 2015 An elegant piping approach for wood-fueled biomass boiler systems.Read More
Looking back to early visions of hydraulic separation Back to the future in hydronics John Siegenthaler, P.E. April 24, 2015 Back in 1996, the hydronics market was expanding at a good pace, largely driven by growing interest in radiant panel heating.Read More
Year-round radiant Opportunity awaits but it has to be controlled in radiant heating John Siegenthaler, P.E. March 30, 2015 Hydronic radiant panel heating has long been known for providing superior cold weather comfort.Read More
Low-temperature opportunities for duel-fuel systems In situations like this, it makes sense to prioritize use of the lower-cost energy wherever possible. John Siegenthaler, P.E. February 20, 2015 A unique detail for preheating domestic water.Read More