NFB700-500C
Navien · Commercial Boiler
ENERGY STAR CertifiedCommercial Boilers →
Thermal Efficiency
97.5%
Input Rate
499MBTU/hr
Turndown Ratio
12.00
Application
Indoor
High thermal eff
Navien NFB700-500C: thermal eff 97.5%, better than 84% of commercial boilers (category median 96.5%).
Thermal eff: better than 81% of the 49 comparable models within 10% of this size. Their median is 97 %.
Where this model sits
Input499MBTU/hr
300median 7502500
Thermal Eff97.5%
94median 96.598.7
Better than 84% of commercial boilers.
The Navien NFB700-500C is a 499 MBTU/hr commercial boiler. At 97.5 % it ranks better than 84% of the 386 certified commercial boilers models. Among similar-sized commercial boilers (within 10% of its size), it is more efficient than the peer median of 97 %.
Specifications
| Performance | |
|---|---|
| Thermal Efficiency | 97.5% |
| Full-Load Input Rate | 499MBTU/hr |
| Turndown Ratio | 12.00 |
| Configuration | |
| Application | Indoor |
| Control Type | Multi-stage |
| Model Name | NFB700-500C |
| Identifiers | |
| Model Number | NFB700-500C |
| ENERGY STAR ID | ES_1074959_NFB700-500C_06252025003356_10217547744 |
| Partner | Navien, Inc. |
| Date Qualified | 2025-06-26 |
| Available From | 2025-08-01 |
| Markets | United States, Canada |
Documentation
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