When John Kopf eventually gets around to designing and building his own house, he will go with hydronic heat instead of a more traditional forced air system. Kopf knows a thing or two about heating, having spent more than 20 years in the industry. He currently serves as boiler product manager for Navien.

Wohlfarth has more than 30 years of real-life experience inside boiler rooms and uses humor and jobsite stories to teach the class.

The HTP Elite XL is a powerful commercial boiler that is available in six sizes ranging from 400,000 Btu/h to 2,000,000 Btu/h.

The MACH® condensing boiler from Patterson-Kelley increases turndown, with emphasis on system efficiency, reliability and serviceability.

Pennant boilers and volume water heaters received a substantial upgrade with the Laars Linc intuitive control system with color touchscreen.

Weil-McLain’s Stainless Steel Vertical Firetube (SVF) commercial boiler features thermal efficiencies up to 97.1%.

Slant/Fin’s VGH Boiler offers the next generation duo stainless steel water tube heat exchanger featuring larger water passages increasing the heat output, the company says.

Raypak’s XVers commercial fire-tube boilers offer installation flexibility, easy commissioning, optimum seasonal efficiency and long-term reliability, the company notes.

AERCO’s Benchmark Platinum condensing boilers with the Edge Controller saves time and money on installation and operating costs, simplifies start-ups and maintenance and strengthens system efficiency and performance, the company notes.

Using an internal combustion natural gas engine, Lochinvar and EC Power’s Micro CHP (< 50 kW/hr) XRGI25 is designed to be an efficient, easy-to-install system intended for light commercial use.