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Navien Boiler NHB-55H, 55,000 BTU
$2,569.00
NAVIEN Boiler NHB-110H 110,000 BTU
$3,079.00
NAVIEN Boiler NHB-80H, 80,000 BTU
The Navien NHB-80H, installed by 4Most Energy, delivers 80,000 BTU/h of efficient heating for homes up to 2,500 sq ft. Perfect for radiant, baseboard, or air-handler systems, it can also connect to an indirect tank up to 40 gallons for reliable domestic hot-water production.
$2,815.00
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Navien NHB-80H Heat-Only Boiler
Installed by 4Most Energy — 80,000 BTU Heating • High-Efficiency Condensing Design
The Navien NHB-80H is a compact, high-efficiency heat-only condensing boiler designed for reliable, quiet performance in small to medium-sized homes. Professionally installed and serviced by 4Most Energy, it provides efficient hydronic heating through radiant, baseboard, or air-handler systems — all with an ENERGY STAR®-certified 95 % AFUE efficiency rating.
Built with stainless-steel heat exchangers and smart modulation technology, the NHB-80H optimizes comfort, reduces gas consumption, and fits perfectly into modern mechanical spaces.
Why Choose the NHB-80H (Installed by 4Most Energy)
95 % AFUE condensing efficiency for lower operating costs
Stainless-steel primary & secondary heat exchangers for durability
Quiet, modulating burner adjusts to real-time heating demand
Compact, wall-hung design ideal for small mechanical rooms
Wi-Fi ready (NaviLink™) for remote monitoring and control
Compatible with natural gas or propane
Best Fit (Size & Applications)
Ideal for homes up to ~2,500 sq ft
Supports radiant in-floor, baseboard/radiator, and air-handler systems
Excellent for retrofits or as a dedicated heating boiler alongside a separate water heater
- Can connect to an indirect water tank up to 40 Gal to provide domestic hot water,
effectively replacing gas water heaters for higher reliability and efficiency
Additional Information
Additional Information
| Model | NHB-80H | Brand | Navien | Series | NHB |
|---|---|---|---|---|---|
| Type | Heat-Only Condensing Boiler | Heating Capacity | 80,000 BTU/h | AFUE Efficiency | 95 % |
| Fuel Type | Natural Gas / Propane | Heat Exchanger | Stainless Steel | Wi-Fi Capable | YES (NaviLink™ Ready) |
| Venting Type | Direct Vent (PVC, CPVC, Polypropylene) | Built-In Circulator pump | NO | Energy Star | YES |
| Product Depth | 12" | Product Width | 17.3" | Product Height | 27.4" |
| Weight | 68 lbs | Indirect Tank Compatibility | 40 Gallons | Built-In Recirculation | Optional |
| Warranty – Heat Exchanger | 10 Years | Warranty – Parts | 5 Years | Labour Warranty (4Most Energy) | 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 NHB-80H is a powerful, compact boiler designed for
residential buildings up to ~2,500 sq ft.
It provides dependable hydronic heating and can be paired with an
indirect water tank up to 40 gallons for domestic hot-water production.
Heating Output: 80,000 BTU/h |
Efficiency: 95 % AFUE |
Type: Heat-Only Condensing Boiler |
Indirect Tank: Recommended up to 40 Gallons
Best suited for single-family homes, multi-zone systems,
or small commercial applications.
Perfect for radiant in-floor heating, baseboard circuits,
or air-handler integration requiring precise temperature control.
⚙️ Expertly sized and installed by 4Most Energy — ensuring
proper zoning, efficient domestic hot-water setup, and long-term system reliability
across Ontario.
