Condensing gas boiler VAILLANT ECOTEC Pro VUW 236-5-3 24 kW

Review of the gas boiler Vaillant ecoTEC pro VUW INT 236/5-3‑H

Condensing boilers recover "hidden" thermal energy from combustion products, such as water vapor, offering low fuel consumption and high environmental performance for users.

ecoTEC pro VUW boilers are available in power versions of 23, 28 and 34 kW. The thermal power in heating mode (min/max) is between 5.2 and 18.5 kW. The thermal power in domestic hot water preparation mode is 23 kW.

Strengths of the Vaillant ecoTEC pro VUW INT 236 gas boiler:

Wall-mounted gas heating boiler with condensation
Modulating burner with power range from 28% to 100%
Integrated eBus communication interface
Average efficiency during the heating season of 107%
NOx content in combustion products less than 20 mg/kW*h
Maximum working pressure in the heating circuit 3 bar, in the domestic hot water circuit up to 10 bar
High quality stainless steel primary heat exchanger. All components made in Germany
Built-in plate heat exchanger for preparing domestic hot water
Efficient consumption of electricity. Boiler power up to 90 W
Easy to maintain design. Easy access to the boiler from the front.
Backlit screen and intuitive interface.

Equipment Vaillant ecoTEC pro VUW INT 236/5-3-H:

Built-in two-stage heating system pump, automatic air vent, safety valve, condensate drain from the appliance and from the flue gas system by built-in siphon, built-in 8 liter expansion tank.
Priority switching valve
Electronic pressure sensor. Flow sensor.
Electronic ignition and control of the combustion process.
Protection against pump and switching valve blocking with priority in case of inactivity for more than 23 hours.
"Installation wizard" function for simple configuration of parameters at first start-up.

In conclusion, the Vaillant ecoTEC pro VUW INT 236/5-3-H gas boiler is an excellent choice for those who value efficiency, ecological safety, reliability and ease of use. With its wide range of functions, high technical performance and exceptional manufacturing quality, ac