CI2-399
Viessmann · Commercial Boiler
ENERGY STAR CertifiedCommercial Boilers →
Thermal Efficiency
98%
Input Rate
399MBTU/hr
Turndown Ratio
7.00
Application
Indoor
High thermal eff
Viessmann CI2-399: thermal eff 98%, better than 91% of commercial boilers (category median 96.5%).
Thermal eff: better than 90% of the 63 comparable models within 10% of this size. Their median is 96.5 %.
Where this model sits
Input399MBTU/hr
300median 7502500
Thermal Eff98%
94median 96.598.7
Better than 91% of commercial boilers.
The Viessmann CI2-399 is a 399 MBTU/hr commercial boiler. At 98 % it ranks better than 91% 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 96.5 %.
Specifications
| Performance | |
|---|---|
| Thermal Efficiency | 98% |
| Full-Load Input Rate | 399MBTU/hr |
| Turndown Ratio | 7.00 |
| Configuration | |
| Application | Indoor |
| Control Type | Multi-stage |
| Model Name | CI2-399 |
| Identifiers | |
| Model Number | CI2-399 |
| ENERGY STAR ID | ES_1105949_CI2-399_03212023142438_3724341 |
| Partner | Viessmann Manufacturing Company |
| Date Qualified | 2023-03-29 |
| Available From | 2022-01-07 |
| Markets | United States, Canada |
Documentation
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