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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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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.
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.
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.
From your first call to final start-up, 4Most Energy certified boiler experts handle everything
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.
Complete installation package with all required components.
Enhance your boiler’s efficiency, comfort, and reliability with professional upgrades by 4Most Energy.
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:
We go beyond the manufacturer's warranty to ensure your complete peace of mind:
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.
| 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. |
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:
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 |
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.
Off-season pricing means the best deals of the year on high-efficiency air conditioners.
Save Big on Lennox Furnaces — Limited Time!
Get a new high-efficiency Lennox furnace with no payments for up to 6 months. Premium comfort, top-tier performance.
Simple estimates, flexible payments, pro installation, and industry-leading warranties.