High Efficiency Boilers
Gas-fired condensing boilers are highly efficient, environmental-friendly and cost-reducing. Through the process of combustion water is heated and flue gases pass into the chimney. These flue gasses, which are mostly hot water vapour, are not lost, since gas-fired condensing boilers extract the heat and transfer the obtained energy into the heating circuit. Gas-fired condensing boilers can be used both for hot water preparation and heating.
Vaillant is a worldwide leading company in heating and ventilation technology, offering environmental and energy-saving heating and ventilation systems largely based on renewable energies.
The advantages of a Vaillant gas-fired condensing boiler:
- Optimum energy efficiency of up to 98%.
- Significantly less soot and particulate matter during combustion via condensing technology.
- Consumption drops significantly compared to an old heating installation.
- Flexible expansion, e. g. with solar collectors, heat pumps, storage and controls.
ecoTEC VUW pro
ecoTEC VUW pro

- For heating and instant preparation of hot water.
- Controlled efficiency grade to 109%.
- Adjustable output.
- Can function with liquefied petroleum gas after conversion.
- Can be positioned in external spaces, as long as it does not get wet, thanks to its system of automatic operation in temperatures under 4°C.
ecoTEC VUW plus
ecoTEC VUW plus

- For heating and instant preparation of hot water.
- With automatic inverter generator.
- Controlled efficiency grade to 109%.
- Adjustable output.
- Can function with liquefied petroleum gas after conversion.
- Can be positioned in external spaces, as long as it does not get wet,thanks to its system of automatic operation in temperatures under 4°C.
ecoTEC VU 14-65 kW
ecoTEC VU 14-65 kW

- For instant preparation of hot water.
- Without second exchanger.
- Can be connected to a VIH heated boiler or to an allSTOR multi-use reservoir.
- Controlled efficiency grade to 109%.
- Adjustable output.
- Can function with liquefied petroleum gas after conversion.
- Can be positioned in external spaces, as long as it does not get wet, thanks to its system of automatic operation in temperatures under 4°C.
ecoTEC VU 80-120 kW
Gas-fired wall hung condensing boiler ecoTEC VU 80-120 kW

- Single boiler heating output.
- Can be used with up to 6 devices with a controller and power up to 720kW.
- Large water content.
- Can be connected to a VIH heated boiler or to an allSTOR multi-use reservoir.
- Controlled efficiency grade to 110%.
- Can function with liquefied petroleum gas after conversion.
- Electronic adjustment of partial load.
- Low power consumption.