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Today's Hours 8am - 11pm estNoritz 9.8 GPM 180,000 BTU Residential Natural Gas Combi Boiler with Integrated Recirculation Pump
By
Noritz
In stock
Model
NRCB180DV-NG
ID
236186
Was $5,065.34 Your Low Price Special Price $2,865.00
Product Features
- Combi Boiler: Provides heating and hot water in one unit.
- Bottom Connections: Easy access for installation and servicing.
- Direct Replacement: Replaces boiler and water heater systems.
- Endless Hot Water: Up to 9.8 GPM on demand.
- High Efficiency: Condensing design helps reduce fuel.
- 15-Year Warranty: Residential heat exchanger coverage.
The Noritz NRCB180DV-NG (GHQ-C2801WX-FF US NG) Residential Combination Boiler provides endless domestic hot water and dependable hydronic space heating from one compact, high-efficiency appliance. By combining a tankless water heater and hydronic boiler into a single wall-mounted unit, the NRCB180DV-NG helps reduce mechanical room space requirements while simplifying installation and delivering year-round comfort.
Designed for indoor direct vent installation, the NRCB180DV-NG utilizes advanced condensing technology, premium stainless steel heat exchangers, and a factory-installed high-capacity circulation pump to maximize efficiency and reliability. Delivering up to 9.8 gallons per minute of domestic hot water with a maximum domestic hot water input of 180,000 BTU and up to 100,000 BTU for hydronic heating, this combination boiler is an excellent solution for whole-home hot water and residential heating applications.
Product Features:
- 180,000 BTU Maximum Domestic Hot Water Input: Provides powerful natural gas heating capacity for continuous domestic hot water while supporting residential hydronic heating applications.
- Up to 9.8 GPM Domestic Hot Water: Delivers an endless supply of hot water for multiple showers, sinks, dishwashers, washing machines, and other fixtures simultaneously, depending on incoming water temperature and household demand.
- 100,000 BTU Heating Capacity: Supplies hydronic heating for compatible radiant floor systems, baseboard heaters, panel radiators, and hydronic air handlers.
- Combination Boiler Design: Provides both domestic hot water and hydronic space heating from one compact appliance, eliminating the need for separate equipment.
- Simultaneous Domestic Hot Water & Space Heating: Engineered to provide hot water and home heating at the same time, helping maintain indoor comfort while supporting household hot water demand.
- 95% AFUE Efficiency: High Annual Fuel Utilization Efficiency helps reduce natural gas consumption while delivering dependable heating performance.
- High-Efficiency Condensing Technology: Advanced condensing operation captures additional heat from combustion gases to maximize efficiency and lower operating costs.
- 316L Stainless Steel Primary Heat Exchanger: Premium corrosion-resistant stainless steel heat exchanger provides outstanding durability, long service life, and efficient heat transfer.
- 316L Stainless Steel Secondary Plate Heat Exchanger: Dedicated stainless steel domestic hot water heat exchanger efficiently transfers heat while keeping potable water separate from the closed-loop heating circuit.
- Integrated High-Capacity Circulation Pump: Factory-installed hydronic circulation pump simplifies installation while providing dependable circulation through compatible heating systems.
- Fully Modulating Burner: Automatically adjusts firing rates from approximately 18,000 to 180,000 BTU during domestic hot water operation and up to 100,000 BTU during heating mode to improve comfort and efficiency.
- Outdoor Reset Control: Automatically adjusts heating water temperature based on outdoor conditions to improve seasonal efficiency and maintain consistent indoor comfort.
- Adjustable Domestic Hot Water Temperature: Domestic hot water temperature is adjustable from 90°F to 140°F for personalized comfort.
- Adjustable Hydronic Heating Temperature: Heating supply temperatures are adjustable from 100°F to 180°F for compatibility with radiant floor systems, baseboard heating, panel radiators, and hydronic air handlers.
- Direct Vent Installation: Sealed combustion direct vent design supports installation using approved PVC, CPVC, or polypropylene vent materials.
- Optional Outdoor Installation: Can be installed outdoors when paired with the optional Noritz VCK-NRCB Outdoor Conversion Kit.
- Built-In Freeze Protection: Internal freeze protection helps safeguard the heat exchanger during freezing conditions when installed according to manufacturer requirements and connected to electrical power.
- Advanced Safety & Self-Diagnostics: Includes flame monitoring, blocked vent protection, overheat protection, ignition monitoring, freeze protection, and advanced diagnostic capabilities for dependable long-term operation.
What Is a Combination Boiler?
A combination boiler, commonly known as a combi boiler, combines a high-efficiency tankless water heater and hydronic boiler into one appliance. Instead of installing separate equipment for domestic hot water and home heating, a combi boiler provides both functions from a single compact unit, helping reduce installation space while simplifying system design.
The NRCB180DV-NG automatically prioritizes domestic hot water whenever a faucet or shower is in use while continuing to support compatible hydronic heating applications for dependable whole-home comfort.
Domestic Hot Water & Space Heating
The NRCB180DV-NG is engineered to simultaneously provide domestic hot water and hydronic space heating. This allows occupants to continue using showers, faucets, and appliances while the home's radiant floor heating, baseboard heaters, panel radiators, or hydronic air handlers continue operating.
The unit is compatible with many closed-loop residential hydronic heating systems when properly designed and installed according to manufacturer recommendations and local building codes.
Integrated Hydronic Circulation Pump
The factory-installed high-capacity circulation pump helps simplify installation by eliminating the need for a separate primary boiler pump in many residential applications. It provides dependable circulation through compatible heating systems while reducing installation complexity.
Depending on the overall system design, additional expansion tanks, zone valves, low-loss headers, circulators, or control components may still be required.
Understanding Combi Boiler Sizing
Combination boilers are sized using two separate performance ratings: domestic hot water flow rate (GPM) and space heating capacity (BTU/hr).
Domestic hot water sizing depends on simultaneous fixture demand and local winter groundwater temperature. Larger homes with multiple bathrooms generally require higher flow rates to support simultaneous showers and appliance use.
Space heating capacity should always be determined using a professional heat loss calculation that considers the home's square footage, insulation, windows, climate, and overall construction. Proper sizing helps maximize efficiency, improve comfort, and minimize unnecessary equipment cycling.
Warranty
The NRCB180DV-NG includes Noritz's residential limited warranty featuring a 10-year primary heat exchanger warranty for standard residential installations without recirculation, a 3-year heat exchanger warranty when used with recirculation, a 5-year parts warranty, and a 1-year reasonable labor warranty. Always verify natural gas supply, approved venting materials, condensate drainage requirements, electrical service, water quality, compatible hydronic components, and all applicable plumbing, mechanical, and fuel gas codes before installation.
Versatile Residential Heating & Hot Water Performance
The Noritz NRCB180DV-NG is a residential natural gas combi boiler designed to deliver efficient hydronic space heating and continuous domestic hot water from one compact wall-mounted system. With a maximum input of 180,000 BTU and hot water output up to 9.8 GPM, this unit is well suited for homes seeking reliable year-round comfort and consistent on-demand hot water performance.
Equipped with integrated recirculation functionality, the NRCB180DV-NG helps improve hot water delivery throughout the home by minimizing wait times at sinks, showers, and fixtures. Its all-in-one combi design reduces the need for separate heating appliances and storage tanks, helping simplify residential mechanical system layouts while conserving installation space.
Engineered with high-efficiency condensing technology, the system uses advanced burner modulation to continuously adjust output based on household heating and hot water demand. Durable stainless steel heat exchangers support long-term performance while helping maintain stable water temperatures and dependable hydronic heating operation across varying residential usage conditions.
Why Choose the Noritz NRCB180DV-NG Residential Combi Boiler?
Integrated Home Heating Solution
- Provides both hydronic space heating and domestic hot water from a single appliance.
- Compatible with radiant floor systems, baseboard heating, and hydronic air handlers.
Efficient Natural Gas Condensing Operation
- Condensing technology helps improve heat transfer efficiency and reduce wasted energy.
- Modulating burner system adjusts performance automatically based on changing demand.
Reliable Residential Hot Water Output
- Delivers up to 9.8 GPM for homes with multiple simultaneous hot water fixtures.
- Supports showers, sinks, dishwashers, and laundry appliances operating together.
Compact & Durable Wall-Mounted Design
- Wall-mounted configuration helps save floor space in residential utility areas.
- Stainless steel heat exchangers support corrosion resistance and long-term reliability.
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