www.phcppros.com/articles/6856-rheem-ultra-low-nox-gas-furnace

Rheem Ultra Low NOx Gas Furnace
January 31, 2018
The Ultra Low NOx Gas Furnace is the first certified unit to meet Rule 1111 14 ng/J NOx emission standards. The environmentally friendly product reduces NOx emissions by 65 percent. The furnace features: a 34-feet cabinet height; PlusOne Diagnostics with 7-Segment LED; and PlusOne Ignition System with DSI for unmatched durability & years of worry-free operation.
Rheem