Any Home. Any Season. One System.
Upgrade to a high-efficiency heat pump to heat and cool with one system, reduce energy costs, and get up to $7,500 in rebates.
NAVIEN Combi Boiler NCB-190/060H, 60,000 BTU Heating, 160,000 BTU Water Heating
Original price was: $7,790.00.$6,690.00Current price is: $6,690.00.
NAVIEN Combi Boiler NCB-240/110H , 110,000 BTU Heating, 199,000 BTU Water Heating
Original price was: $8,499.00.$6,990.00Current price is: $6,990.00.
-13%
NAVIEN Combi Boiler NCB-190/080H, 80,000 BTU Heating, 160,000 BTU Water Heating
Original price was: $7,890.00.$6,890.00Current price is: $6,890.00.
Starting at:
The Navien NCB-190/080H delivers 80,000 BTU of efficient space heating and a robust 160,000 BTU of domestic hot water. The ideal solution for homes up to 1,800 sq. ft. Price includes professional installation.
Every home is different. We’ll confirm your installation cost!
✅ Equipment only →Just add to cart.
4
People watching this product now!
Boiler Services in Greater Toronto Areas and Southern Ontario
Navien NCB-190/080H High-Efficiency Combi Boiler
Don't let a mid-sized home force you into an oversized commercial boiler. The Navien NCB-190/080H is the "Goldilocks" solution for townhomes and smaller detached houses. It features an optimized 80,000 BTU heating core, providing just the right amount of power to heat your home efficiently without the wear and tear of short-cycling.
Paired with a powerful 160,000 BTU water heater, it ensures your morning routine is never interrupted, delivering endless hot water at flow rates up to 8.3 GPM. It’s the smart balance: enough heat for Canadian winters, enough hot water for the whole family.
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-190/080H 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 1,800 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 hydronic basement heating, including in-floor radiant heating systems with up to 4 loops and zoning.
⚠️ Not recommended for glycol-based, snow-melt, or heavy-duty commercial applications.Radiators (Rads): Compatible with any type of radiator, including cast iron, baseboard, aluminum, and multi-zone systems.
Important Note for Cast Iron Systems: If you are connecting to an old cast iron radiator system, specific protection devices are required to shield the new boiler from corrosion and dirt.
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-190/080H 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.
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.
Feature | Specification |
|---|---|
Model | NCB-190/080H (High Efficiency Combi) |
Heating Input | 18,000 - 80,000 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-190/080H:
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-190/080H 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.
