Future-Proof Hydronic Systems Low water temperatures are the key. March 15, 2013 A tradeoff has always existed between the water temperature at which hydronic heat emitters are sized and their cost.Read More
Energy and Power They're not the same thing John Siegenthaler, P.E. February 13, 2013 Most of you reading this column consider yourselves heating professionals.Read More
Heat pumps are renewable energy heat sources John Siegenthaler, P.E. January 15, 2013 I recently read an Internet posting asserting that heat pumps, both air-source and geothermal, should not be considered renewable energy heat sources.Read More
Do this, do that John Siegenthaler, P.E. December 1, 2012 A new piping concept and control wiring challenge. Read More
Avoiding thermal depression John Siegenthaler, P.E. November 1, 2012 A new way to protect a heating system.Read More
Larger than necessary John Siegenthaler, P.E. October 1, 2012 You’re probably oversizing expansion tanks in low-temperature systems.Read More
Hydraulic separation revisited John Siegenthaler, P.E. September 1, 2012 It doesn’t have to be perfect to be effective.Read More
Stating the obvious John Siegenthaler, P.E. August 1, 2012 Some recent discoveries about ducting.Read More
Those other heat pumps, Part 1 John Siegenthaler, P.E. July 1, 2012 Air-to-water heat pumps offer new opportunities for hydronic pros.Read More
Sidearm revamp John Siegenthaler, P.E. June 1, 2012 Updating an old approach using modern hardware.Read More