The Free Flex Ultra-High Efficiency Commercial Condensing Boiler offers a thermal efficiency of 95 percent and features Bryan’s weld-free design. The Free Flex permits field access to the heat exchanger for cleaning and an unprecedented tube replacement.

The ClearFire-CE (CFC-E) condensing boiler can achieve up to 99 percent efficiency due to its enhanced AluFer^® firetube heat exchanger and dual temperature returns.

For large residential or light commercial applications requiring a multiple boiler setup, the Evergreen provides ZoneStacking™— the capability to operate 24 zones without an additional external third-party control.

BSRIA Inc. reports that from 2012 to 2016, sales of condensing boilers grew from 30 percent of the commercial market to over 60 percent, and that number is expected to climb to 80 percent by next year.

With failing boilers and an inefficient heating system, historic Zion Episcopal Church in Oconomowoc, Wisconsin, needed guidance and help. New, high-efficiency condensing boilers from Weil-McLain provided the answer to solve their heating woes. 

The hot ticket at the recent Air-Conditioning, Heating, and Refrigeration (AHR) Expo was a seat at Building Services Research and Information Association’s (BSRIA’s) presentation on global HVAC trends.

Weil-McLain is offering its most advanced high-efficiency condensing boiler. The new 95 percent AFUE Evergreen™ boiler features cutting-edge technology with simple controls, flexible functionality for multiple applications, and a durable design that is easy to install, use, and maintain.

Bosch Thermotechnology’s Greenstar gas condensing boiler for residential applications is now available in a floor standing version for all eight regular (heat) and combi (heat+hot water) models: regular heat only models 57, 79, 100, 131, 151 MBtuh inputs and combi heat+hot water 100, 131, 151 MBtuh inputs.

Lochinvar LLC introduced three new CREST condensing boiler models with 750,000 to 1 million and 1.25 million Btuh inputs during the AHR Expo on Tuesday.