What is the proper pressure setting for a comfort-heating steam boiler?

Congratulations to those products on this year’s list. These are based on the number of pageviews on pmmag.com.

High efficiency boilers and water heaters, and pumps — and products designed to avoid bottlenecks caused by the skills gap — were the name of the game at AHR Expo in Atlanta this week.

Weil-McLain’s Stainless Steel Vertical Firetube (SVF) boiler features industry-leading thermal efficiency up to 97.1%, easy installation and maintenance, the intuitive and user-friendly Unity control system, and Weil-McLain boiler design reliability and longevity.

Webstone, a brand of NIBCO, announces new Magnetic Boiler Filter. Designed to protect system components and maintain efficiency, the high-powered 12,000 Gauss magnet captures ferrous debris from the system before it reaches the boiler.

With a patented stainless steel fire tube heat exchanger, Navien’s NFB condensing wall-hung boiler brings the industry a new level of technology in this category.

AERCO’s Commercial Condensing Boiler features a combination of patented technology (AERtrim O2 trim), advanced features and innovative onAER Predictive Maintenance analytics tool

ADEY’s MagnaClean DRX magnetic dirt filter provides a cost-effective solution for removing debris and black iron oxide sludge from commercial hydronic heating systems.

An installer is asked to install heating in the slab floor of a farm workshop. The owner has already purchased a used cast iron boiler that will run on propane.

My technical boiler books all use the “lessons learned” theme, and the following are the lessons I have learned about boiler water treatment.