Lochinvar – Outdoor Knight Condensing Gas Boilers

Commercial Boilers

OUTDOOR KNIGHT CONDENSING GAS BOILERS

All the high-end features that have made KNIGHT boilers a favorite with building owners and contractors are now available in this model designed for outdoor use.

Model Number Input MBH Min. Input MBH Max. A C D E F G H I J K Gas Conn. Water Conn. Vent Size
Ship. Wt.
OKN400 80 399 42-1/2″ 25-1/4″ 21″ 20-3/4″ 14-1/4″ 3-1/2″ 7″ 34″ 9-3/4″ 52″ 1″ 1-1/2″ 4″ 280
OKN501 100 500 42-1/2″ 31-1/2″ 21-1/4″ 25″ 14-1/4″ 3-3/4″ 3-1/2″ 35-1/4″ 9-3/4″ 52-3/4″ 1″ 1-1/2″ 4″ 310
OKN601 120 600 42-1/2″ 35″ 21″ 25″ 14-1/4″ 3-1/2″ 4-1/2″ 32-3/4″ 9-1/2″ 52″ 1″ 2″ 4″ 340
OKN701 140 700 42-1/2″ 41-1/4″ 23-1/4″ 29-1/4″ 17-1/4″ 3-1/2″ 3″ 32-3/4″ 12″ 49-1/2″ 1″ 2″ 6″ 370
OKN801 160 800 42-1/2″ 43-1/4″ 23-1/4″ 33-1/2″ 17-1/4″ 3-1/2″ 3-1/4″ 33″ 12-1/4″ 50-1/2″ 1″ 2″ 6″ 405