NAVIEN Combi Boiler NCB-190/060H, 60,000 BTU Heating, 160,000 BTU Water Heating

SKU: NCB190060HRAL

Original price was: $7,790.00.Current price is: $6,690.00.

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The Navien NCB-190/060H delivers 60,000 BTU of efficient space heating and a robust 160,000 BTU of domestic hot water. The perfect fit for smaller homes up to 1,500 sq. ft. Price includes professional installation.

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Boiler Services in Greater Toronto Areas and Southern Ontario

Navien NCB-190/060H High-Efficiency Combi Boiler

Stop overheating your home just to get a decent shower. The Navien NCB-190/060H is engineered specifically for smaller footprints like condos, apartments, and townhomes. It features a precision 60,000 BTU heating core that eliminates the "short-cycling" and energy waste common with oversized boilers in small spaces.

Yet, it refuses to compromise on luxury. By pairing this efficient heating core with a powerful 160,000 BTU water heater, it delivers endless hot water at flow rates up to 8.3 GPM. It’s the smart choice for condos, townhouses, and small footprints: maximum efficiency for your heating, maximum comfort for your bathroom.

Installed professionally by 4Most Energy’s certified Navien technicians, this unit includes full venting, gas line sizing, and commissioning.

Warranty Highlight: 10-Year Heat Exchanger, 5-Year Parts, and 1-Year Labour Warranty.

Ideal Sizing & Applications

Is this the right unit for your home? The NCB-190/060H is optimized for energy-efficient modern living spaces or older, smaller footprints where space is at a premium

  • Home Sizing: Perfectly sized for condos, apartments, additions and smaller detached homes up to 1,200 sq. ft.(depending on heat loss).

  • Heating Versatility: This unit is a perfect match for diverse heating systems:

    • Air Handlers: Works seamlessly with both High Velocity and Low Velocity air handling systems for forced air heating. It is a common and effective replacement for older Baxi Combi and Flow Max Combi boilers often paired with these systems.

    • In-Floor Heating: Excellent for targeted hydronic heating in single-zone apartments, basements, or main floor additions. Ideally suited for smaller systems with up to 3 loops.
      ⚠️ Not recommended for glycol-based, snow-melt, or heavy-duty commercial applications.

    • Radiators (Rads): Compatible with small-scale applications using aluminum radiators or baseboards.
      Note: This unit is not recommended for high-volume cast iron radiator systems.

Hot Water Capacity:

  • Impressive Hot Water Output: Despite the compact heating side, the water side is a powerhouse. With 160,000 BTU dedicated to DHW, it delivers up to 8.3 GPM (Max).

  • Winter Performance: For typical GTA winter showers (110°F output with a 70°F rise), it sustains 4.1 GPM, comfortably handling one shower and a kitchen sink, dishwasher, or washing machine running simultaneously, even in February.

    • Intelligent DHW Priority: The system features smart priority switching. When you open a hot water tap, the boiler instantly diverts full power to water heating to ensure a stable temperature and endless flow. Once the water is turned off, it seamlessly reverts to heating your home without you noticing a drop in comfort.

    • High Demand Options: Have a luxury bathroom or massive tub? This unit can be paired with an external Buffer Tank to satisfy even higher volume hot water demands.

Performance Features

  • Dual Stainless Steel Exchangers: Navien’s high-grade stainless steel resists corrosion better than copper, ensuring longevity in condensing applications.
  • Optimized Turndown Ratio (15:1 DHW / 6:1 Heating): The system modulates its fire down to a whisper. The 15:1 ratio on the hot water side ensures precise temperature control even when just washing hands, preventing temperature spikes.

Why Install the NCB-190/060H Navien Combi Boiler with 4Most Energy in GTA & Southern Ontario?

  • Proudly Local: We are based in and proudly serve the Greater Toronto Area and Southern Ontario.
  • 15+ Years of Experience: We have specialized in Boiler and Tankless systems for over 15 years. We aren't generalists; we are experts.
  • High-Quality Installation Materials: We don't cut corners. We use premium piping, valves, and fittings to ensure your system is leak-free and built to last.
  • Transparent Pricing: No hidden fees or surprise upcharges. We provide clear, upfront quotes so you know exactly what you are paying for.
  • Guaranteed Satisfaction: We stand behind our work with a 100% Customer Satisfaction Warranty and a 30-Day Return Policy for your peace of mind.
  • Fully Certified & Insured: Our technicians are fully licensed and insured, protecting you and your home throughout the installation process.
  • Navien Parts & Repair Availability: We provide comprehensive after-sales support, including full access to genuine Navien parts and expert repair services, so you are never left without heat or hot water.
Boiler & Heating Solutions

Stress-Free Boiler Installation

From your first call to final start-up, 4Most Energy certified boiler experts handle everything

4Most Energy Boiler Services

Professional Boiler Installation

We install the new high-efficiency boiler on a secure plywood mounting board and connect it to the gas, venting, and hydronic system. Dual PVC vent pipes (intake and exhaust) are routed through the side wall for proper airflow. The installation also includes setting up a drain system for condensate management and installing all the necessary devices and piping to ensure safe operation. After installation, we perform a full leak test and air bleeding process to remove trapped air and verify system pressure. All connections meet Ontario safety standards, and the system is purged, pressure-tested, and fully optimized for performance.

Unlike many contractors, 4Most Energy includes it all

Devices & Materials Included in Boiler Installation

Complete installation package with all required components.

Isolation Valves

For easy maintenance without draining the full system.

Expansion Tank

Sized correctly for your boiler’s water volume and pressure

Auto Feeder & Pressure Regulator

Maintains consistent pressure with backflow prevention

System Circulator Pump

New high-efficiency pump with flange connections

Outdoor Sensor

Adjusts boiler temperature based on outdoor weather.

Hydronic Piping

Oxygen-barrier PEX, copper, or steel depending on your system layout.

Performance & Protection Upgrades for Your Boiler

Optional Add-On Devices & System Upgrades

Enhance your boiler’s efficiency, comfort, and reliability with professional upgrades by 4Most Energy.

   

Air Eliminator

Removes trapped air and oxygen bubbles to prevent corrosion.

Dirt & Magnetic Separator

Captures rust and metal particles in older radiator systems.

Low-Water Cut-Off

Protects the unit from overheating when water levels drop.

Zone controller boiler installation

Zone Controller

Manages multiple heating zones for customized comfort.

Manifold with Zone Valves

Enables individual zone control and easy maintenance.

Low-Loss Header

Increases efficiency and flow balance for larger multi-zone systems.

Feature

Specification

Model

NCB-190/060H (High Efficiency Combi)

Heating Input

10,000 - 60,000 BTU/h

DHW Input

10,000 - 160,000 BTU/h

Max Flow Rate

8.3 GPM

Efficiency (AFUE)

95.0% (Energy Star)

Turn Down Ratio

15:1 (DHW) / 6:1 (Heating)

Fuel Type

Natural Gas or Propane (Field Convertible)

Venting

2" or 3" PVC/CPVC/PP

Heat Exchanger

Dual Stainless Steel

Dimensions

17.3" W x 29.3" H x 12.8" D

Warranty

10-Year Heat Exchanger / 5-Year Parts / 1-Year Labor

When installed by a 4Most Energy certified technician, your Navien Boiler  includes industry-leading coverage:

  • Heat Exchanger: 15 Years (Residential Applications)
  • Parts: 5 Years
  • Labour: 1 Year (Standard Navien Coverage)

4Most Energy Exclusive Guarantees

We go beyond the manufacturer's warranty to ensure your complete peace of mind:

  • 100% Customer Satisfaction: If you aren't happy with the installation, we make it right.
  • 30-Day Return Policy: We stand behind our system design.
  • Certified & Insured: All technicians are fully licensed and insured for work in the GTA and Southern Ontario.

Required Maintenance for Longevity

To keep your warranty valid and your efficiency at 95%, Navien recommends professional maintenance. We suggest scheduling this before the heating season to ensure you have smooth, uninterrupted comfort all winter.

  • Heat Exchanger Flushing: Frequency depends on water hardness, but it must be scheduled at least once every 3 years to ensure maximum performance and longevity.
  • Gas Leak & Safety Check: We meticulously inspect all gas connections and fittings to avoid leaks and ensure total safety.
  • Unit Cleanup: We perform a comprehensive cleaning of the unit's cabinet and internal components.
  • Condensate Trap Cleaning: Ensuring the system drains properly.
  • Venting Inspection: Checking for blockages or debris (leaves/snow).
  • Note: 4Most Energy offers maintenance plans that automatically handle these checks for you.
Process Step Details
1. Home & System Check We perform a heat loss calculation and assess your DHW needs to confirm the 150H is the right fit.
2. Removal of Old Equipment We safely disconnect and remove your old boiler, furnace, and water heater, handling all disposal.
3. Install & Mount Includes professional wall preparation, mounting brackets, and clearance verification.
4. Gas, Venting & Condensate We install new System 636 venting, upgrade gas lines if needed, and setup proper condensate drainage with a neutralizer.
5. Hydronic Piping We professionally pipe your primary heating loop (boiler piping) and connect it to your existing distribution system (rads/air handler).
6. Full Testing & Commissioning We perform gas/water leak checks, analyze combustion with a digital analyzer, and calibrate the system temperature.
7. Cleanup & Training We leave the work area spotless, provide homeowner training on the controller, and register the warranty.

The "Ontario Winter" Reality Check

Manufacturers typically list flow rates based on warmer ground water. In the GTA, we size for winter realities with groundwater temperatures around 40°F. Here is the realistic performance for the NCB-190/060H:

Detailed Temperature Rise vs. Flow Rate

Temp Rise

Flow Rate (GPM)

Flow Rate (l/m)

Typical Application Scenario

35°F (19.4°C)

8.3 GPM

31.4 l/m

Summer Inlet (75°F) -> Hot (110°F)

40°F (22.2°C)

7.2 GPM

27.3 l/m

High Capacity Summer Usage

45°F (25.0°C)

6.4 GPM

24.2 l/m

 

50°F (27.8°C)

5.8 GPM

22.0 l/m

 

55°F (30.6°C)

5.2 GPM

19.7 l/m

 

60°F (33.3°C)

4.8 GPM

18.2 l/m

Spring/Fall Usage

67°F (37.2°C)

4.3 GPM

16.3 l/m

 

70°F (38.9°C)

4.1 GPM

15.5 l/m

Typical GTA Winter Shower (110°F)

77°F (42.8°C)

3.7 GPM

14.0 l/m

 

80°F (44.4°C)

3.6 GPM

13.6 l/m

GTA Winter High Heat (120°F)

85°F (47.2°C)

3.4 GPM

12.9 l/m

 

90°F (50.0°C)

3.2 GPM

12.1 l/m

 

100°F (55.6°C)

2.9 GPM

11.0 l/m

Commercial / Sanitizing Temp



Real-World Capacity (GTA Winter Conditions)

Based on the chart above (approx. 70°F rise in winter), here is what the NCB-190/060H can handle simultaneously:

Simultaneous Usage Scenario

Performance Status

2 Standard Showers

Perfect Performance. (4.1 GPM allows two 2.0 GPM showers).

1 Rain Shower + 1 Faucet

Excellent. Handles a luxury shower plus a sink.

1 Shower + Laundry

Good. Consistent hot water for daily tasks.

3+ Simultaneous Showers

Limit Reached. For this demand, we recommend the larger NCB-240/110H or NCB-240/130H.

At 4Most Energy, we proudly provide professional HVAC, Boiler, Tankless, Furnace & Heat Pump installation across the Greater Toronto Area and Southern Ontario.

  • Greater Toronto Area: Toronto, Mississauga, Brampton, Markham, Vaughan, Richmond Hill, Aurora, Newmarket, Scarborough.

  • Extended Service Area: Stouffville, Oshawa, Barrie, Orangeville, Hamilton, St. Catharines, Guelph, Kitchener.

Our certified technicians offer fast response, transparent pricing, and warranty-backed installation wherever you are.

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