THERMAL SOLUTIONS AMP400vsViessmann CI2-399
Side-by-side commercial boiler comparison
THERMAL SOLUTIONS AMP400
Thermal Efficiency
97%
Input Rate
400MBTU/hr
Turndown Ratio
10.00
Application
Indoor
Viessmann CI2-399
Thermal Efficiency
98%
Input Rate
399MBTU/hr
Turndown Ratio
7.00
Application
Indoor
Key differences
Both models are closely matched on thermal eff: 97.0 vs 98.0 %. The THERMAL SOLUTIONS AMP400 is larger at 400 MBTU/hr versus 399 MBTU/hr. Overall, the Viessmann CI2-399 sits higher in the category, ranking above 91% of certified commercial boilers.
Performance
| Spec | THERMAL SOLUTIONS | Viessmann |
|---|---|---|
| Thermal Efficiency(%) | 97 | 98 |
| Full-Load Input Rate(MBTU/hr) | 400 | 399 |
| Turndown Ratio | 10.00 | 7.00 |
Configuration
| Spec | THERMAL SOLUTIONS | Viessmann |
|---|---|---|
| Application | Indoor | Indoor |
| Control Type | Multi-stage | Multi-stage |
| Model Name | AMP | CI2-399 |