King Heating Products Inc. EK 399-CHBvsNavien NFB-399C
Side-by-side commercial boiler comparison
King Heating Products Inc. EK 399-CHB
Thermal Efficiency
94%
Input Rate
396MBTU/hr
Turndown Ratio
5.0
Application
Indoor
Navien NFB-399C
Thermal Efficiency
97.5%
Input Rate
399MBTU/hr
Turndown Ratio
15.00
Application
Indoor
Key differences
Navien NFB-399C is 4% more efficient at 97.5 % versus 94.0 % for the King Heating Products Inc. EK 399-CHB. The Navien NFB-399C is larger at 399 MBTU/hr versus 396 MBTU/hr. Overall, the Navien NFB-399C sits higher in the category, ranking above 84% of certified commercial boilers.
Performance
| Spec | King Heating Products Inc. | Navien |
|---|---|---|
| Thermal Efficiency(%) | 94 | 97.5 |
| Full-Load Input Rate(MBTU/hr) | 396 | 399 |
| Turndown Ratio | 5.0 | 15.00 |
Configuration
| Spec | King Heating Products Inc. | Navien |
|---|---|---|
| Application | Indoor | Indoor |
| Control Type | Multi-stage | Multi-stage |
| Model Name | Ecoking Ultimate Boiler | NFB-399C |