NAVIEN NFC-175 NAT/LP COMBI CONDENSING FIRETUBE BOILER 95% AFUE 175,000 MAX BTU INPUT 140MBTU MAX NET OUTPUT DHW 5.1 GPM @ 70 DEG RISE INCLUDES HEATING PRIMARY MANIFOLD & VALVES, NAVICLEAN MAGNETIC FILTER, UNIVERSAL TEMP SENSOR, OUTDOOR SENSOR, HEATING PRESSURE RELIEF VALVE, AIR VENT & PRV AIR VENT ADAPTOR, 2" VENT TERMINATION CAPS(2)