Navien NFB Fire-Tube Series
NFB Fire-Tube Series Overview
The NFB uses a fire-tube heat exchanger for maximum durability and efficiency. Designed for hydronic heating systems including radiant floors, baseboards, and fan coils.
Up to 95% AFUE
Efficiency
399,000 BTU
Max BTU
Up to 12 years
Warranty
Key Features
Best for
NFB Fire-Tube Series Model Lineup
Click to call for sizing help — we calculate heat-loss before recommending a model.
| Model | BTU Range | Efficiency | Best For |
|---|---|---|---|
| NFB-80H | 8,000 – 80,000 | 95% AFUE | Small homes |
| NFB-150H | 15,000 – 150,000 | 95% AFUE | Medium homes |
| NFB-200H | 20,000 – 199,000 | 95% AFUE | Large homes |
| NFB-250H | 25,000 – 250,000 | 95% AFUE | Very large / light commercial |
| NFB-301H | 30,000 – 301,000 | 95% AFUE | Light commercial |
| NFB-399H | 40,000 – 399,000 | 95% AFUE | Commercial |
Services we provide on the NFB Fire-Tube Series
All work done by licensed BC gas-fitters — TSBC-certified.
NFB Fire-Tube Series Installation
Permit, sizing, venting, gas, commissioning.
From $5,800
NFB Fire-Tube Series Repair
Error code diagnosis, parts, full repair.
From $189
NFB Fire-Tube Series Maintenance
Annual tune-up — required for warranty.
From $169
Emergency Service
Same-day & after-hours no-heat, leak, CO, gas-smell response.
Call 604-359-1081
NFB Fire-Tube Series Replacement
Upgrade an older unit. Rebate-eligible.
From $5,800
Warranty Service
Authorized warranty repairs for Navien.
Warranty-covered
Navien NFB Fire-Tube Series service across Greater Vancouver
Service the NFB Fire-Tube Series in every major Greater Vancouver city.
Book Navien NFB Fire-Tube Series service today
Same-day repair available · Free installation quotes · Licensed gas-fitters