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NAVIEN NCB-240/110H Combi Boiler, 110,000 BTU Heating, 199,000 BTU Water Heating
The Navien NCB-240/110H Combi Boiler, installed by 4Most Energy, is ideal for homes up to 3,000 sq. ft. with 3 bathrooms. Perfect for zoning systems like in-floor heating and an air handler, it delivers powerful, efficient heating and endless hot water.
$3,960.00
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Installed by 4Most Energy – Built for Zoning, Comfort, and Efficiency
The Navien NCB-240/110H is one of the most capable high-efficiency combi boilers in Navien’s lineup, delivering both home heating and endless hot water in one compact system. Installed and serviced by 4Most Energy, it’s ideal for medium to large homes up to 3,000 sq. ft. with 3 to 4 bathrooms to deliver powerful heating and endless hot water with a 7–10 GPM flow rate, offering exceptional comfort, reliability, and energy performance.
With 110,000 BTU/h for heating and 199,000 BTU/h for domestic hot water, this model provides the power needed to run multiple showers and appliances simultaneously. Its maximum flow rate of 11–12 GPM (average 8 GPM) ensures stable hot-water delivery even under heavy demand.
The NCB-240/110H is perfectly suited for zoned hydronic systems, including in-floor radiant heating setups with up to 6 loops, and integrates seamlessly with air-handler systems for full-home comfort. It’s an excellent choice for homeowners seeking efficient zoning control, quiet operation, and consistent heating performance.
⚠️ Not recommended for glycol-based, snow-melt, or heavy-duty commercial applications.
Additional Information
Additional Information
| Model | NCB-240/110H | Brand | Navien | Series | NCB |
|---|---|---|---|---|---|
| Heating Capacity | 110,000 BTU | Water Heating Capacity | 199,000 BTU | Energy Factor | 95% |
| GPM | 7–10 | Wi-Fi Capable | YES | Venting Type | Direct Vent |
| Built-In Recirculation | YES | Weight | 84 lbs | Product Depth | 13.2" |
| Product Width | 17.3" | Product Height | 28" | Energy Star | YES |
| Warranty on Heat Exchanger | 10 Years | Warranty on Parts | 5 Years | Labour Warranty on Installation | 1 Year |
Service Area
4Most Energy proudly serves homeowners and businesses throughout the Greater Toronto Area, Golden Horseshoe, and Southwestern Ontario with professional installation and service for Navien tankless water heaters and boilers.
We offer expert sales, installation, and maintenance for all Navien high-efficiency systems in:
Toronto • North York • Richmond Hill • Vaughan • Markham • Aurora • Newmarket • Mississauga • Oakville • Burlington • Brampton • Hamilton • St. Catharines • Niagara Falls • Kitchener • Waterloo • Guelph • Cambridge • Milton • Orangeville • Barrie • Oshawa • Whitby • Ajax • Pickering • Stoney Creek • Grimsby, and all surrounding communities.
Our certified HVAC team provides on-site installation and replacement services across these regions. Every Navien installation by 4Most Energy includes a 1-year labour warranty, ensuring peace of mind and guaranteed workmanship.
With licensed technicians strategically located throughout Ontario, we offer fast response times for after-installation service, emergency repairs, and priority maintenance calls, keeping your Navien tankless water heater or boiler running efficiently year-round.
Sizing Table
System Size & Capacity
The Navien NCB-240/110H Combi Boiler is perfectly sized for
medium to large homes up to 3,000 sq. ft. and
supports 3 to 4 bathrooms with reliable hot-water performance.
It delivers 110,000 BTU/h for home heating and up to
199,000 BTU/h for domestic hot water with a
flow rate of 7–10 gallons per minute depending on temperature rise.
This model is ideal for zoned systems such as
in-floor radiant heating (up to 6 loops) combined with an
air-handler system for balanced comfort throughout the home.
⚠️ Not recommended for glycol-based, snow-melt, or heavy-duty applications
such as large garage heaters.
