At a time when there are so many new possibilities for water-based heating and cooling — and with a giant helping of new technology at every facet of the playing field — we’re losing the very essence of what’s needed most: a new generation of energetic, inspired young trade pros.

Industry figures are estimates that are derived from the best available figures supplied by a sample of AHRI member companies.
 

The Navien Heating Boiler (NHB) Series is available in four wall-hung sizes — NHB-55, NHB-80, NHB 110, and NHB-150, with turn-down ratios, respectively, of 7:1, 10:1, 11:1, and 15:1. 

Tronic 5000C and 6000C electric water heaters are available in kW input models WH17 (Tronic 6000C), WH27 (Tronic 6000C), and WH36 (Tronic 5000C). 

The CSM-C 600 compact clean-steam generator is a skid-mounted system designed to provide (dry) saturated steam that meets the requirements of HTM2031, HTM2010, and EN285 standards. 

The manufacturers provided The NEWS with a brief description of features included with each product. For more information, please contact the manufacturers or their distributors directly.

Installers and specifiers know a gas appliance is only as good as the venting system it’s connected to. Poor venting can cause improper combustion, but, more importantly, can also lead to flue gas leakage into heated spaces — a problem with deadly consequences.

Oh, and I should mention that Daniel and Chapman were the man’s first and middle names. His last name was Stillson. Think of him the next time you reach into your toolbox for that durable Stillson wrench that will forever carry its inventor’s proud name. Think of him, remember him, thank him, and smile.

The Mascot FT condensing combi boiler and water heater features a fire-tube stainless steel heat exchanger that produces 95 percent annual fuel utilization efficiency (AFUE), is fully modulating, and produces an endless supply of domestic hot water on combi units. 

Boiler efficiency is an important factor in selecting a space heating boiler, but what does “boiler efficiency” really mean? In selecting the right boiler for a commercial application, it is important to understand the difference between the various types of boiler efficiencies.