Noritz NRCB199DV-NG Residential Condensing Gas Combination Boiler (GHQ-C3201WX-FF US)

Description

From Plumbing Deals' product listing.

Simultaneous Heating and Domestic Hot Water Condensing Combi Boiler - Natural Gas The Noritz NRCB199DV-NG (MPN: NRCB199DVNG) is a 199,900 BTU natural gas condensing combination boiler engineered to provide space heating and domestic hot water simultaneously without temperature drops. Key Features Simultaneous Domestic Hot Water and Space Heating Delivers continuous domestic hot water and space heating at the same time, preventing space heating temperature drops during domestic hot water draw. 316L Stainless Steel Heat Exchangers Utilizes primary and secondary heat exchangers manufactured from 316L stainless steel for increased corrosion resistance and extended operational life. High-Efficiency 95% AFUE Rating Features a 6.7:1 turndown ratio with gas consumption scaling from 18,000 to 199,900 BTU/hr to optimize fuel efficiency during fluctuating heat loads. Outdoor Reset Control & Outdoor Temperature Sensor Includes built-in programmable outdoor reset logic and a dedicated outdoor sensor to automatically adjust heating output based on outdoor ambient temperatures. Product Details Maximum Gas Input (DHW Mode): 199,900 BTU/hr Heating Mode Gas Input Range: 18,000 – 120,000 BTU/hr Domestic Hot Water Flow Rate: 0.4 – 11.1 GPM AFUE Rating: 95% Fuel Type: Natural Gas (NG) Turndown Ratio: 6.7:1 Domestic Temperature Range: 90°F – 140°F Space Heating Temperature Range: 80°F – 180°F Mounting & Weight: Wall-mounted indoor unit, 95 lbs. Safety Devices: Flame rod, high limit switch, lightning protection device (ZNR), freeze prevention device, and fan rotation detector Included Components: Remote thermostat, outdoor temperature sensor, 6-foot power cord installation kit, and automatic water feeder Warranty Coverage: 12-year heat exchanger, 5-year parts, 1-year labor Shop all Noritz products Additional Information Brand: Noritz MPN: NRCB199DVNG Noritz NRCB199DV-NG FAQ Can the Noritz NRCB199DV-NG run central heating and domestic hot water at the same time? Yes. Unlike standard combi boilers that divert total burner capacity to domestic hot water during demand, this unit is engineered to supply both space heating and domestic hot water simultaneously. What heat exchanger materials are used in this combi boiler? The primary and secondary hydronic heat exchangers, as well as the flat plate domestic hot water exchanger, are built using 316L stainless steel for maximum corrosion resistance. What venting configurations are supported? It supports direct vent (DV) indoor installation out of the box and can be converted to single vent (-SV) using the conversion kit (part #SV-CK-2). Is an outdoor temperature sensor included with the unit? Yes. An outdoor temperature sensor is included to utilize the boiler's built-in outdoor reset control algorithm, adjusting loop temperatures to match outdoor ambient conditions. How does the hydronic loop maintain system pressure? The unit features an automatic internal water feeder that adds water as needed to maintain operating pressure in the closed hydronic heating loop. Want to learn more about this high efficiency boiler? Check out our article on all things high efficiency boilers.