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ecoTEC exclusive Green iQ 835, 843

ecoTEC exclusive combination boilers

  • Wide modulation range of up to 1:10
  • Extra condensate heat exchanger
  • High power, 43kW output model available
  • 7 year warranty available with options up to 10 years when registered on Vaillant Advance

Overview

The new ecoTEC exclusive Green iQ is our first ever boiler product with the power of Green iQ technology.

Combining our complete range of smart technologies and features, you can be sure you’re fitting the very best when you fit new ecoTEC exclusive. As well as providing great performance, the new ecoTEC exclusive intelligently manages consumption and output to keep all its components running at peak performance, for longer, providing a low maintenance solution that you can rely on.

The ecoTEC exclusive range consists of two large output combination boilers with extra condensate technology, and a single system boiler, which includes an integrated diverter valve for the first time in UK Vaillant history.

Features and benefits:

  • Wide modulation range of up to 1:10 - Adapts perfectly to all systems in every situation, ensuring lowest fuel bills for your customers
  • All gas system - Always reaches optimal combustion with lowest emissions. As a self-adaptive system, it automatically adjusts to all types of gas
  • Extra condensate heat exchanger - Taking overall combi boiler efficiency to the next level, and almost eliminating plume in DHW mode
  • Green iQ Mode - Outstanding eco-credentials from Vaillant’s latest boiler range, which optimises running cycles, results in even lower gas consumption and the boiler is highly recyclable (85%) at the end of its life
  • High power, 43kW output model available - Delivers Vaillant’s highest ever flow rate of 17.8 l/min
  • Compatible with Vaillant’s vSMART™ heating control
  • Standard 2 year warranty, can be upgraded to a free 7 year warranty when registered through Vaillant Advance
  • Option to purchase extended warranty up to 10 years when registered through Vaillant Advance

Specifications

Specifications

ecoTEC exclusiveUnit35kW43kW
Article number  00100170640010017065
Nominal heat output range P at 50/30°C kW"3.9 - 26.4
(LPG 8.6 - 26.4)"
"4.8 - 36
(LPG: 8.5 - 36.0)"
Nominal heat output range P at 80/60°C kW"3.4 - 24.6
(LPG: 7.6 - 24.6)"
"4.3 - 33.4
(LPG: 7.6 - 33.4)"
Maximum heat output for water generation kW35.343.4
Nominal heat input for central heatingkW"3.6 - 24.8
(LPG: 8.0 - 24.8)"
"4.5 - 33.7
(LPG: 8.0 - 33.7)"
Heating setting rangekW4 - 255 - 34
Heating
Maximum flow temperature°C8585
Maximum flow temperature setting range (factory setting 75°C) °C30 - 8530 - 85
Expansion vessel capacityl1010
Nominal gas consumptionm3/hr"3.5
(LPG: 2.54)"
"4.3
(LPG: 3.12)"
DHW mode
Lowest water volume for operationl/min1.51.5
DHW performance (at DT=∆35K)l/min14.517.8
Hot water output temperature range°C35 - 6535 - 65
General
Boiler side gas connection (mm)mm1520
Flow/return heating connections, boiler sidemmG3/4"G3/4"
Hot and cold water connection, boiler sideInchesG3/4"G3/4"
Approved flue gas connections C13, C33, C54C13, C33, C54
Noxmg/kWh34.936.8
ErP efficiency 94%94%
ErP rating (heating/hot Water) A/AA/A
Boiler dimensions (H x W x D)mm720 x 440 x 406 720 x 440 x 474
Mounting weight approximate 42.550

Related Products

Related Products

vSMART™ intelligent room control with app

Heating and hot water control at your fingertips

  • Smart phone app for both Android and Apple iOS application
  • Self learning
  • Weather compensation
  • Connect multiple vSMART controllers to one app
  • Wireless connection

VRC 700 / VRC 700f

Wired or wireless weather compensating programmable room thermostat

  • Works with our complete range of Vaillant boilers
  • Flexible time programs
  • Works with S & Y plan systems
  • Clear, high contrast backlit display

VRT 350 & 350f

Wired and wireless room thermostat

  • New attractive, easy to use design with blue backlit display
  • Adjusts heating and hot water to British summer/winter time
  • Two temperature setting levels: desired and set-back temperatures

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