Advanced Thermal Hydronics KN-2vsViessmann VR1-140
Side-by-side boiler comparison
Advanced Thermal Hydronics KN-2
AFUE
90%
Fuel
Natural Gas, Propane Gas
Type
Boiler
Viessmann VR1-140
AFUE
87%
Fuel
Oil
Type
Boiler
Hot Water
Can integrate
Key differences
Advanced Thermal Hydronics KN-2 is 3% more efficient at 90.0 % versus 87.0 % for the Viessmann VR1-140. The Advanced Thermal Hydronics KN-2 is larger at 90 % versus 87 %. Overall, the Advanced Thermal Hydronics KN-2 sits higher in the category, ranking above 22% of certified boilers.
Efficiency
| Spec | Advanced Thermal Hydronics | Viessmann |
|---|---|---|
| AFUE(%) | 90 | 87 |
| Fuel Type | Natural Gas, Propane Gas | Oil |
| Can Integrate Hot Water Heating | No | Yes |
Configuration
| Spec | Advanced Thermal Hydronics | Viessmann |
|---|---|---|
| Product Type | Boiler | Boiler |
| Model Name | KN Series | Vitorond 100 |