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New - Vaillant ecoTEC plus 826, 832, 836, 840, 940 Combination boiler
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New - Vaillant ecoTEC plus 826, 832, 836, 840, 940 Combination boiler

by Vaillant
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The new ecoTEC plus is the product of hours of research and development, years of expertise and innovation and a series of fine, precise improvements that have sharpened, intensified and enhanced performance specifically for the UK market. We’ve started with a classic, and taken it to the next level.

Combination boiler

  • Smart home ready for precise control and energy optimisation
  • Features new ioniDETECT technology - intelligent gas combustion monitoring for even greater system efficiency
  • Hydrogen prepared – perfect home heating solution for years to come. The perfect future-proof heating solution
  • Hand-built in our award-winning Derbyshire manufacturing plant

The new ecoTEC plus takes connectivity to a whole new level. Paired with our new plug-and-play internet gateway, myVAILLANT connect, it enables app control, smart home integration and remote appliance care and support in minutes, for increased efficiency and first-class customer service.

Vaillant ecoTEC plus

Features & benefits

10-year guarantee available - Free 5-year guarantee out of the box as standard. Extended guarantee available when installed with a Boiler Protection Kit and registered on Advance.

Smart home ready* Works alongside the new myVAILLANT connect internet gateway, for easy connection with most Vaillant controls and app connectivity in minutes

Automatic LPG conversion on most outputs** Completed in minutes using the new intuitive interface, with no additional parts required.

New IoniDETECT technology Intelligent gas combustion monitoring, helping the new ecoTEC plus reach wider modulation range of up to 1:11, for even greater system efficiency

Familiar footprint and external layout Retaining the same case dimensions, boiler footprint, flue position and pipe connections for an effortless like-for-like swap

Sharpened intelligence with LIN bus technology Enables more intelligent and accurate reading of flow rate and pressure differential via internal pump for improved performance.

New intuitive semi-touch interface Allowing for effortless first-time installation and set-up, with guided commissioning and set up wizard and easy to follow navigation.

Hydrogen prepared Suitable to work safely and efficiently with up to 20% hydrogen mix.

  • Smart home ready* - Works alongside the new plug-and-play myVAILLANT connect internet gateway, for easy connection with most Vaillant controls and app connectivity in minutes.

* Excluding timeSWITCH 150 and timeSWITCH 160.

  • Refined and enhanced internal layout - With easy access to all major components, making installation and servicing effortless.
  • Familiar footprint and external layout - Retaining the same case dimensions, boiler footprint, flue position and pipe connections for an effortless like-for-like swap.
  • New intuitive semi-touch interface - Allowing for effortless first-time installation and set-up, with guided commissioning and set up wizard and easy-to-follow navigation.
  • Automatic LPG conversion on most outputs* - Completed in minutes using the new intuitive interface, with no additional parts required.

* Excluding ecoTEC plus 840, 940 and 635.

 

  • New IoniDETECT technology - Intelligent gas combustion monitoring, helping the new ecoTEC plus reach wider modulation range of up to 1:10, for even greater system efficiency.
  • Sharpened intelligence with LINbus technology - Enables more intelligent and accurate reading of flow rate and pressure differential via internal pump for improved performance.
  • Hydrogen prepared - Suitable to work safely and efficiently with up to 20% hydrogen mix.

Models 

  • ecoTEC plus 826 - 26kW
  • ecoTEC plus 832 - 32kW
  • ecoTEC plus 836 - 36kW
  • ecoTEC plus 840 - 40kW
  • ecoTEC plus 940 - 40kW

Downloads

Specifications

Technical data Unit of measure ecoTEC plus 826 - 26kW ecoTEC plus 832 - 32kW ecoTEC plus 836 - 36kW ecoTEC plus 840 - 40kW ecoTEC plus 940 - 40kW
General
Boiler type   Combi Combi Combi Combi Combi
LPG compatible   Yes - adaptive Yes - adaptive Yes - adaptive No No
Article number   0010036015 0010036016 0010036017 0010036018 0010036114
PCDB number   TBC TBC TBC TBC TBC
Dimensions
Boiler dimensions (HxWxD) mm 720 x 440 x 352 720 x 440 x 352 720 x 440 x 352 720 x 440 x 386 720 x 440 x 580
Side clearance mm 5 5 5 5 5
Top clearance (With 60/100 flue) mm 165 165 165 165 165
Top clearance if using rear flue mm N/A N/A N/A N/A N/A
Bottom clearance mm 180 180 180 180 180
Front clearance ~ mm 500 500 500 500 500
Heating
Nominal heat output range at 50/30˚C (Condensing mode) kW 2.5 - 19.8 3.5 - 24.9 37.29.9 4.5 - 29.8 45. - 29.8
Lowest water pressure to operate boiler bar 0.7 0.7 0.7 0.7 0.7
Lowest water flow for operation l/min 2.0 2.0 2.0 2.0 2.0
Domestic hot water flow rate (at Δ30˚C) * l/min 12.4 15.2 17.0 19.0 21.0
Domestic hot water flow rate (at Δ35˚C) * l/min 10.6 13.0 14.6 16.3 18.0
Hot water output temperature range ˚C 35-65 35-65 35-65 35-65 35-65
Mechanical
Gas inlet connection (pipe size) mm 15 15 15 15 15
Heating flow and return connections (pipe size) mm 22 22 22 22 22
Hot and cold water connections (pipe size) mm 15 15 15 15 15
Heat exchanger material Stainless/ Aluminium Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Filling loop supplied YES/NO Yes Yes Yes Yes Yes
Boiler lift weight (Dry boiler) kg 36 37 37 41 60
Spacer frame available YES/NO Yes Yes Yes Yes No
Performance
NOx (En 15502-2-1) mg/kWh 33.0 27.0 28.0 26.0 26.0
ErP efficiency % 93 94 94 94 94
ErP decibel rating (sound power) dB(A) 46 45 47 49 49
ErP efficiency Heating/DHW A+++ to D A/A A/A A/A A/A A/A
PCDB annual efficiency (SAP 2009/2012) % TBC TBC TBC TBC TBC
Fluing options
Maximum horizontal flue length 60/100 m 10 8 8 8 8
Maximum vertical flue length 60/100 m 10 8 8 8 8
Maximum horizontal flue length 80/125 m 28 28 28 28 28
Maximum vertical flue length 80/125 m 30 30 30 30 30
Rear flue options YES/NO No No No No No
Permissible flue classifications   C13, C33, C43, C53 C13, C33, C43, C53 C13, C33, C43, C53 C13, C33, C43, C53 C13, C33, C43, C53