Wall-Hung Boiler Gas, CondensingecoTEC plus VUI
Wall-mounted combi boiler delivering outstanding hot water performance.
- Unmatched DHW performance
- Gas adaptivity with IoniDetect: technology that anticipates
- Smart app control
- Ready for green gas and 20% hydrogen
- Flat design and semi-touch display
ecoTEC plus is an economical condensing boiler that boasts high heating energy efficiency of up to 94%. The ecoTEC plus VCI is Vaillant’s premium wall-mounted gas condensing boiler that brings exceptional comfort to your home. With its two integrated hot water cylinders powered by shift-load technology, it provides a large, steady volume of hot water and outstanding temperature stability, delivering unmatched performance for a wall-mounted boiler. Featuring IoniDetect gas adaptivity, it automatically adjusts to variations in gas quality and type, including green gases and up to 20% hydrogen. The ecoTEC plus VCI can be easily controlled via Vaillant connected thermostats and the myVAILLANT app, while also allowing professionals to monitor system performance and respond immediately to any potential issues.
Ideal for:
- Heating
- Hot water
Technical data table overline
Technical data table headline
ecoTEC plus | |
VUI 26CS/1-5 (N-INT3) | VUI 32CS/1-5 (N-INT3) |
| ErP Seasonal Space Heating Efficiency Class | ErP Seasonal Space Heating Efficiency Class | ||
|---|---|---|---|
| ErP Water Heating Energy Efficiency Class Of Combination Heater | ErP Water Heating Energy Efficiency Class Of Combination Heater | ||
| ErP Seasonal Space Heating Energy Efficiency | ErP Seasonal Space Heating Energy Efficiency | 94 % | 94 % |
| ErP Water Heating Energy Efficiency | ErP Water Heating Energy Efficiency | 81 % | 82 % |
ecoTEC plus | |
VUI 26CS/1-5 (N-INT3) | VUI 32CS/1-5 (N-INT3) |
| Heat Output 50/30 °C (G20) (min - max) | Heat Output 50/30 °C (G20) (min - max) | 2,8 - 21,0 kW | - |
|---|---|---|---|
| Heat Output 50/30 °C (G20, G25) (min - max) | Heat Output 50/30 °C (G20, G25) (min - max) | - | 3,8 - 27,0 kW |
| Heat Output 50/30 °C (G31) (min - max) | Heat Output 50/30 °C (G31) (min - max) | 5,4 - 21,0 kW | 8,4 - 27,0 kW |
| Heat Output 80/60 °C (G20) (min - max) | Heat Output 80/60 °C (G20) (min - max) | 2,5 - 19,7 kW | - |
| Heat Output 80/60 °C (G31) (min - max) | Heat Output 80/60 °C (G31) (min - max) | 4,8 - 19,7 kW | 7,8 - 25,0 kW |
| Heat Output (G20) (Domestic Hotwater Mode) (max) | Heat Output (G20) (Domestic Hotwater Mode) (max) | 26,0 kW | - |
| Heat Output (G31) (Domestic Hotwater Mode) (max) | Heat Output (G31) (Domestic Hotwater Mode) (max) | 25,4 kW | - |
| Efficiency (G20, G31) (30% acc. to EN 15502) | Efficiency (G20, G31) (30% acc. to EN 15502) | 109 % | - |
| Efficiency (G20, G31) (Domestic Hotwater Mode) | Efficiency (G20, G31) (Domestic Hotwater Mode) | 96,75 % | - |
| Gas Flow Rate, G20 | Gas Flow Rate, G20 | 2,8 m³/h | 3,4 m³/h |
| Gas Flow Rate, G31 | Gas Flow Rate, G31 | 1,07 m³/h | 1,3 m³/h |
| Heat Output 80/60 °C (G20, G25) (min - max) | Heat Output 80/60 °C (G20, G25) (min - max) | - | 3,5 - 25,0 kW |
| Heat Output (G20, G25, G31) (Domestic Hotwater Mode) (max) | Heat Output (G20, G25, G31) (Domestic Hotwater Mode) (max) | - | 32,0 kW |
| Efficiency (G20, G25) (30% acc. to EN 15502) | Efficiency (G20, G25) (30% acc. to EN 15502) | - | 110 % |
| Efficiency (G20, G25, G31) (Domestic Hotwater Mode) | Efficiency (G20, G25, G31) (Domestic Hotwater Mode) | - | 98 % |
| Gas Flow Rate, G25 | Gas Flow Rate, G25 | - | 4,0 m³/h |