
Vaillant ecoTEC plus VUW 40 CS/1-5 Condensing Combi Boiler
A-class energy efficiency in heating and hot water, 1:10 modulation ratio, efficient combustion with IoniDetect technology and a stainless steel heat exchanger. Hot water flow up to 19.1 l/min at 40 kW.
Highlights
- ✓A-class energy efficiency in heating and hot water
- ✓Heating from 20 kW up to 35 kW
- ✓High hot water comfort with an XL load profile from 26 kW to 40 kW
- ✓1:10 modulation ratio / efficient combustion with IoniDetect technology
- ✓Proven long service life with a stainless steel heat exchanger
Overview
Efficient combustion and low modulation with IoniDetect smart combustion technology The quality of the gas you use varies from time to time, which can make combustion unstable and inefficient. IoniDetect technology continuously monitors combustion, automatically adjusting the ideal air-gas mixture according to the calorific value of the incoming gas for the most efficient combustion. With its low modulation ratio it can reduce capacity by up to 10% as needed, saving energy.
Wide capacity options and smart hot water technology Delivers constant-temperature hot water comfort with heating from 20 kW to 35 kW and an XL load profile from 26 kW to 40 kW. At 40 kW capacity it provides abundant hot water comfort of up to 19.1 litres per minute. The smart hot water technology detects when you are in the bathroom/shower and restores the same hot water comfort after brief pauses, even if you turn off the tap while bathing.
High savings and remote accessibility Achieves A energy class with 94% seasonal heating efficiency. Combined with a VRC 720/f or VRT 380/f room thermostat and an outdoor temperature sensor it reaches A+ seasonal system heating efficiency. With the optional sensoNET VR 921 internet module the device can be controlled remotely from a smartphone or tablet.
Extremely quiet with up to 45 dB(A) while completing the style of your home Its renewed casing and interface give it an elegant design. The touch keypad offers easy, convenient control and an aesthetic look.




