Bryan Steam Triple-Flex ultra-high-efficiency condensing boilers feature flexible stainless-steel tubes, minimum thermal efficiency of 90% with 160° return, 180° supply at maximum input. Triple-Flex fires at 3,000 MBH input, with sub 30 ppm NOx utilizing a hybrid metal fiber 5:1 turndown burner. The boilers are suited to deliver operating efficiencies up to 99% in new buildings designed for condensing boiler conditions and better than 90% efficiency in retrofit applications not designed for condensing boilers.
Bryan Steam. www.bryanboilers.com