A New Look at Series Baseboard Circuits John Siegenthaler P.E. June 3, 2002 Here are some sizing formulas to ensure baseboards near the beginning of a series circuit are not oversized and those near the end are not undersized.Read More
Boiler Biases John Siegenthaler P.E. January 29, 2002 PM Engineer conducted a survey of 1,000 randomly selected readers to gauge their preferences on boilers.Read More
A Vision Statement John Siegenthaler P.E. December 27, 2001 The North American hydronic heating industry has certainly seen some significant technical advances over the last couple of decades.Read More
Differential Pressure Bypass Valves: The Key to a Quiet Zoned System John Siegenthaler P.E. August 29, 2001 One benefit of hydronic heating is the relative ease of dividing the distribution system into several independently controlled zones.Read More
Outdoor Reset Control--No Quality Hydronic System Should Be Without It John Siegenthaler P.E. February 27, 2001 Outdoor reset control enables heat to flow from heat emitters smoothly, continuously and at the right rate.Read More
Anatomy of a Modern Multi-Load Hydronic Heating System John Siegenthaler P.E. December 22, 2000 Today, "residential" hydronic systems are often more sophisticated than those used in large commercial buildings.Read More
Water-To-Water Heat Pumps John Siegenthaler P.E. September 28, 2000 The ability to function as both a heating and cooling system is the biggest attraction of heat pump systems, especially in mid- to lower latitudes.Read More
Minitube Distribution Systems for Hydronic Radiant Floor Heating John Siegenthaler P.E. August 30, 2000 What would you think of a fellow engineer who proposed using 3/4-inch diameter pipe to transport 200,000 Btu/hr between a mechanical room and a load that's say 100 feet away?Read More
Staying in Control John Siegenthaler P.E. July 28, 2000 Over the last 20 years, there has been a tremendous increase in the types of controls available for hydronic heating systems.Read More
Comfortable Floors for Every Occasion John Siegenthaler P.E. May 26, 2000 A church in New York added an addition to its existing building, incorporating hydronic radiant floor heating.Read More