At up to 94 percent AFUE, this Energy Star-rated boiler uses a stainless steel heat exchanger and Sage 2.1 Control System with factory presets to speed installation.
Late last year, Mike Casey, of KC Plumbing & Heating, was involved with an extensive oil-to-gas boiler retrofit in Westwood, Mass. that also included a second-story addition and installation of in-floor radiant. The homeowners wanted an “ultimate efficiency and ultimate comfort” system.
An ideal solution for residential home-heating and water-heating needs, the Rinnai E50C Condensing Combi Boiler is cost effective to install, requiring fewer pumps and no primary secondary piping for common installations.
The U.S. General Services Administration (GSA) has released three new reports as part of its Green Proving Ground program, which tests building technologies in real-world situations to evaluate their potential to save energy, water, and reduce utility costs.
Two dual-fuel natural gas/propane and No. 2 fuel oil condensing boilers — GMI-8M-DF and GMI-4M-DF — have been added to the company’s condensing boiler lineup. The boilers can run either natural gas or propane as the main fuel with No. 2 fuel oil as the backup.
From residential to commercial to futuristic, these wet heat applications provide a quick look at what contractors are specifying for some of their boiler customers.
Five million- (FBN5000) and 4 million-Btuh (FBN4000) units have been added to the Crest® condensing boilers. The line also has been expanded to include a dual-fuel gas train. Additional product enhancements include lower-firing input-derate numbers in high-altitude applications.
The NeoTherm® LC condensing boiler is a fully packaged, 1 million- or 1.7 million-Btu, space-saving hydronic unit that offers 94 percent thermal efficiency. It is a direct vent, sealed-combustion boiler or volume water heater that modulates with a 10-to-1 turndown.
