Garanzia Italiana 24 mesi
SKU: EcoTec_Pro_236_VSmart_Sdop

Vaillant Condensing Gas Boiler EcoTec Pro VMW 236/5-3+ with Vsmart Wi-Fi 0020256400 Methane or LPG Complete with Fume Exhaust Kit

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Technical features

  • Model: ecoTEC Pro VMW 236
  • Methane model with Wi-Fi: 0020256400
  • Heating Energy Class: A
  • Energy Class in Healthcare: A
  • Heating power: 5.2 - 23.0 kW
  • Power in DHW: 5.2 - 23.0 kW
  • Withdrawal flow rate (ΔT = 30K): 11.0 l/min
  • DHW temperature adjustment: 35° - 65° C
  • Possible flue gas outlet diameter: 60/100 mm; 80/125 ; 80/80 ; 60/60 mm
  • Gas Pipe Diameter: 12.70 mm (1/2")
  • Hydraulic Pipe Diameter: G3/4"
  • Dimensions (HxWxD): 720x440x338 mm
Warranty Program 7


All Vaillant condensing boilers fall within the Warranty Program 7. By purchasing a Vaillant condensing boiler you can extend the warranty from 2 to 7 years and benefit from exclusive advantages:
  • No fixed call rights
  • Free labor
  • Free original spare parts

EcoTEC Pro VMW boiler

All models in the VMW ecoTEC pro range have an efficiency etas = 94%. For this reason, if combined with class VI thermoregulation (such as vSmart), they reach a system efficiency of 98% and therefore the ErP system energy class in heating A+ .

The ecoTEC pro VMW boiler (heating and DHW production) is available in 23kW and 28 kW powers.

ecoTEC pro was born as the natural evolution of Vaillant's consolidated technology and experience in condensation technology. ecoTEC pro was designed to offer the right balance between performance and comfort both in heating and in the production of domestic hot water. With the new high efficiency pump and new electronics they allow ecoTEC pro to consume very little electricity, guaranteeing significant savings over the year.

Its simplicity of adjustment makes it the ideal boiler for all users, as well as being supplied with an extremely simple interface with clear text and a backlit display to facilitate use.

EcoTec Pro

ecoTEC pro is the ideal boiler for Vaillant replacements on Vaillant: installation is simple and quick as is the adjustment of the operating parameters. The ecoTEC pro range includes: the combined version, the smart connectivity version in combination with vSMART, a version designed for installation in multiple collective flues and two versions for installations in single collective flues. ecoTEC pro CM is also the right choice for replacing boilers in multi-family complexes or for more complicated installations. In fact, Vaillant offers a range of products suitable for the flue system as well as multiple options regarding the accessories dedicated to the boiler: a fume pressure switch, combined with the electronics, self-regulates the value to be set for the length of the vertical ducting so as to evacuate the exhausted fumes correctly. The ecoTEC pro CS models are equipped with a dedicated kit, included in the supply, consisting of a smoke non-return valve, 87° bend and 80/125mm rigid section for connection to a single collective flue

Small size

The small dimensions of ecoTEC pro VMW allow its installation in any environment:

70cm height
✔ 44cm width
35cm depth (identical to the previous version)
Available with additional approval for outdoor installations down to -5°C

Control the heating with your smartphone

Thanks to its free App, vSMART represents a new approach to home efficiency, transforming smartphones or tablets into remote control systems and allowing you to control and adjust ecoTEC plus at any time, from anywhere, quickly and intuitively.


Discover perfect comfort with the vSMART Wi-Fi modulating thermostat

Vaillant vSMART is the advanced Wi-Fi thermoregulation system that allows you to configure the comfort of your home at any time with a simple click from your smartphone or tablet thanks to a dedicated app already available for iOS and Android

In fact, with the Wi-Fi modulating thermostat you can transform your smartphone or tablet into a remote control system and manage your heating system even remotely. Furthermore, by using the Wi-Fi network you can control and adjust the comfort of your home wherever you are in a quick and extremely intuitive way

vSMART is designed to ensure convenience and extreme ease of use and can be installed on the wall by connecting it to the electrical mains or placed wherever you prefer using common AAA batteries. The thermostat communicates with the boiler via the Vaillant eBus protocol .

With an elegant and essential design, it integrates perfectly into any environment, allowing you to adjust your single system and possibly the load of a domestic hot water cylinder with a simple click.

The benefits of vSMART are not limited to convenience. By using this product you will be able to drastically reduce the " start/stop " cycles of the boiler, thus allowing you to save on gas and electricity and prolong the life of your appliance.


  • Solution for heating and domestic hot water
  • Reduced installation costs
  • Sanitary comfort even with low flow rates
  • High efficiency pump
  • Intuitive display and simplified adjustments

Product Warranty: All products on sale on our site are new and packaged. The warranty on this item is 24 months from the date of purchase.

Scheda Tecnica

  • peso: 35.0 kg
  • classe energetica produzione acs: A
  • classe energetica riscaldamento: A
  • gas: Methane/LPG
  • marca: VAILLANT
  • metri quadri : 120
  • modello: EcoTec_Pro_236_VSmart
  • potenza in kw: 24
  • potenza nominale: 24
  • superficie riscaldabile mq: 120
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