Lochinvar Copper-Fin Atmospheric CBN360

The CBN360 is the second atmospheric Copper-Fin size and the one whose model page represents the line on lochinvar.com. The I&O ratings table lists 180 to 360 MBH input, 295 MBH gross output and a 257 MBH AHRI net water rating at 82.0% thermal efficiency, with 1.2 gallons of water content; the CBA-Sub-08 submittal adds a 255 lb shipping weight and a 9" vent on a 1" gas connection.

The line's product page prints "Copper-Fin atmospheric commercial boilers deliver dependable 82% thermal efficiency" over a 315,000–500,000 BTU/hr range, with the heavy-duty gasketless heat exchanger, built-in draft diverter and 2-stage electronic temperature control as the headline features. Firing is two-stage high/low with intermittent electronic ignition (M9 standard), and venting is Category I Type B double-wall with the built-in draft diverter. The submittal prints a 10-year limited heat-exchanger warranty.