Modular 900 Series steel hydronic boilers can be fired up to 1 MBtu. The burners can use gas, oil, or gas/oil dual fuel. The 125-psi (8.6-bar) fire-tube boilers can be configured for space heating, domestic hot water, or a combination of both from one unit. The optional 97-foot (29.6-meter) hot water copper coil is indirectly heated by boiler water and delivers hot water at 15 gallons per minute. The boilers are designed to provide 25-plus years of operating life.
Triad Boiler Systems Inc., 1099 Atlantic Dr., Unit 2, West Chicago, IL 60185; 630-562-2700; www.triadboiler.com.