This boiler can be fired up to 1.7 MBtu and can fit through a 34-inch doorway with all of the controls mounted and wired, says the company. This 125-psi (8.6) boiler can be configured for space heating, domestic hot water, low temperatures, or combination service from one vessel, states the manufacturer. The boiler can fire gas, oil, or gas/oil dual fuel. When installed in a sequenced modular configuration, the boilers come on-line only as needed, maximizing fuel economy and minimizing boiler vessel wear, the manufacturer states. The optional domestic hot water/low-temp copper coil is indirectly heated by the boiler water.

Triad Boiler Systems Inc., 1099 Atlantic Dr., Unit 2, West Chicago, IL 60185; 630-562-2700; www.triadboiler.com.

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