Hey guys - I've sent Navien an email about this but I want to see if anyone in here knows as well. I've read through the instruction manual included with the unit and other then recommended gas pressure range, I can not find any combustion (analysis) specifications. Anyone know? (I'm a Class 'A' Gas Fitter in BC Canada commissioning some of these at work - I WILL be putting an analyzer on it).
Class 'A' Gas Fitter - Certified Hydronic Systems Designer - Journeyman Plumber