Vaillant EcoTEC

Looking for information on the Valliant Ecotec line of boilers? These products are a range of high efficiency condensing boilers and they have two heating options which are 46kW and 65kW. These boilers are all rated SEDBUK Band ‘A’ and have high performance stainless steel heat exchangers  to capture wasted heat as well as having excellent fuel economy.

Valliant Ecotec has a model called the Vaillant Ecotec Pro. These models feature diagnostic information with push button operation and status information so the unit can be easily serviced with Vaillant Ecotec parts and worked on.  The Vaillant Ecotec Pro is compact with dimensions of H: 720mm x W: 440mm x D: 335mm. The Pro 24 has central heating output in the range of 6.7 – 19 while the Pro 28 is rated at 9 – 24kW and has an Aquacomfort system that delivers instantaneous hot water at the right temperature. The pro models have warranties of one year. Consult the Vaillant Ecotec manual for detailed information on the unit or visit the website for PDF downloads.


  • High condensing efficiency
  • Compact dimensions & low lift
  • Stainless steel heat exchanger
  • Built-in status / diagnostic display
  • Single electronic circuit board
  • New user interface
  • Removable side panels
  • Push-fit flue system

Valliant Ecotec Plus Model

Valliant Ecotec also has another model called the Valliant Ecotec Plus. This is a combination boiler range with high efficiency and powerful DHW performance. These units have compact dimensions and weighs from 36kg which is the lowest in their class. This boiler meets the needs of users who need a lighter unit The Ecotec plus combi 824 and 831 have CH heating that range from 6.7 – 19kW and 8.7 – 24kW. The latest model the 837 has a CH output in the 12.0 – 28.0kW range. This boiler is easy to install and has service values with pipe clip distance connections. These boilers come with the Valliant Ecotec ‘AquaComfort’ system for constant hot water temperature. These boilers have an expansion vessel for 10 liters of water and they have a two year guarantee.


  • High condensing efficiency
  • Stainless steel heat exchanger
  • ‘AquaComfort’ system
  • Single electronic circuit board
  • Simple new control panel
  • Easy Servicing
  • Straightforward push button controls
  • Front access to components
  • Exceptional build quality
  • Low lift weight so they can be worked one ?asily

Ecotec Plus Open Vented Boiler Range

This open vent plus model is the ideal solution from the regular open-vented heating systems. There are four models available including the 415, 418, 428 and 438 models. These models all have good performance and they have efficiencies of over 90% and low emissions. There is a low lift weight and you’ll find a compact design with measurements of (H: 600mm x W: 375mm x D: 340mm). There is no compartment ventilation required. These have a CH range of 5 – 15.3kW in the 415 model to 6.3 – 38kW in the 438 model. These boilers all have a two year guarantee.

Exclusive Models

Valiant Ecotec also has exclusive models available. These were designed to meet the demand for a combination condensing boiler. These units provide heating and hot water for larger properties. These models have a wider modulation range and stay in condensing models for longer periods of time. The exclusive models have a electronically controlled modulating pump for less electrical consumption and improved energy performance. These are easy to install and they have a backlit screen so installers can see data with ease. They have output ranges of 10.2 – 27kW to 838 – 11.2 – 30kW.


  • High condensing efficiency
  • High domestic flow rates
  • New design controls
  • Backlit text
  • Electronically controlled pump

Refer to your Valliant Ecotec Manual for more information on each model and seek Vaillant Ecotec Parts from licensed suppliers.

Vaillant EcoTEC Plus Condensing Combination Storage Boilers

After over 30 years working in the building trade we have grown accustomed to the growth and development of products in all areas of the business, none more so than the change of boilers in the central heating and hot water.  Initially houses contained separate boilers for heating and hot water storage where obviously this system proved to be very inefficient and expensive to run.  Along arrived the combination boiler which was much more efficient and a lot more cost effective with direct heating and instantaneously constant hot water.  One of the best company’s in the development of modern heating systems is Vaillant a well known name in the United Kingdomand Europe. Vaillant provided a range of boilers known as Vaillant ecoTEC Plus heating systems. Although there is a vast range of boilers to choose from we would like to concentrate on two of our favorites and explain why we think they are the best.

Vaillant ecoTEC Plus 831

The Vaillant EcoTEC Plus 831 is a 31KW condensing combination boiler. The unit has a lot of modern features including a stainless steel heat exchanger, electronic air and gas modulation and flame light detection. The Vaillant ecoTEC Plus boilers are very easy to install, with the installation wizard and are “A” rated for fuel efficiency.  These boilers have a class 5 nax burner and fan that does not need separate ventilation feed wherever they are positioned.  We could discuss for hours about the benefits of these boilers, enough to say they are highly efficient, easy to maintain and cost effective to run.

Vaillant ecoTEC Plus 937

The Vaillant ecoTEC Plus 937 boiler has many of the benefits enjoyed by the 831 boiler plus many more. This is a 37KW condensing storage combination boiler that can deliver up to 20 litres of hot water per minute.  The 937 unit has 15 litres actoSTOR exceptional hot water delivery which recharges in 2 minutes where it can ultimately deliver 200 litres of hot water in just 10 minutes.

Vaillant ecoTEC Plus Efficiency

The Vaillant ecoTEC Plus boilers are the most efficient ever developed and they are all “A” rated and carry a 2 year guarantee for parts and labour which is one of the best in the industry. One of my favorite things about the Vaillant ecoTEC Plus boilers is the simplicity of the installation, it comes in 2 sections the tank module and the boiler.  The units are constructed light and easy to assemble so is easy to commission and service and can be easily converted to run on LPG(with a conversion kit ).

Vaillant EcoTEC Plus Manual

The boilers contain a comprehensive Vaillant ecoTEC Plus Manual, that explains where every single nut, bolt and part fits.  One thing worth mentioning is that unless you are a CORGI registered gas fitter you under no circumstances attempt to do any work on any gas appliance; this is totally illegal and can cause severe harm to other people.  Vaillant ecoTEC Plus boilers are a very good unit come highly recommended to any prospective customer.  A large selection of Vaillant ecoTEC Plus boilers exist starting in a price range of £588.09 to £1930.95 plus VAT so if you are in the process of purchasing a new heating system please take a look you won’t be sorry, so good luck and happy heating.

Vaillant EcoTEC Pro Boilers – The Best Choice For Domestic Boilers

Vaillant EcoTEC Pro boilers are energy efficient and reliable boilers manufactured by Vaillant, a leading heating technology manufacturer. Vaillant offers a wide range of domestic boilers of various designs and styles. Choosing the right type of boiler for your home is of paramount importance. You can save up to 20% on your existing fuel bills by replacing your old boiler with a highly efficient newer model. With advancement in heating technology, boilers of today provide better performance and are more cost effective than their older counterparts. Older boilers are only about 50-60% efficient leading to huge amount of energy loss. They should be replaced with either modern conventional boilers or condensing boilers. Modern conventional boilers have an efficiency of about 70-80% while condensing boilers have an efficiency of about 90%. Condensing boilers are so called because of the technology that is employed for producing them. They recover heat from the amount of gas that is burnt, thereby increasing overall efficiency considerably.

Vaillant EcoTEC Types

There are many types of domestic boilers under Vaillant EcoTEC Pro including high efficiency combination boilers, system boilers and traditional open vent boilers.

The Vaillant EcoTEC Pro range of condensing boilers are compact boilers for domestic purposes.
The Vaillant EcoTEC Pro 28 boiler features comprehensive and diagnostic information with simple push button operation. The Vaillant EcoTEC Pro 28 and Vaillant EcoTEC Pro 24 are SEDBUK band A rated with the added advantage of being some of the lightest boilers in their category having compact dimensions (H: 720mm x W: 440mm x D: 335mm).


Vaillant EcoTEC Heat Output

Vaillant EcoTEC Pro 24 has CH heat output range of 6.7-19KW while 28 has an output ranging from 9-24 KW  with a powerful DHW performance and  Aqua Comfort System that provides instantaneous hot water at constant temperatures. Other features include stainless steel heat exchanger, single electronic circuit board, removable side panels and push-fit flue system for greater installation flexibility.   The Vaillant EcoTEC Pro 28 combi boilers have a CH rating of 24KW with an impressive DHW flow rate of 11.5. It is incorporated with compact features with an overall size of 1234x1234x1234 making it ideal for siting and installation. Vaillant EcoTEC Pro 28 combi boilers are compatible with the full range of Vaillant accessories including both vertical and standard horizontal flue for exit through an external wall. The time controls available with EcoTEC Pro 28 are the Vaillant 130 Analogue Timer, Vaillant 140 digital timer and Vaillant VRT392f Wireless Programmer and Thermostat.  Vaillant EcoTEC Pro boilers are highly efficient, reliable and economical, making them the best choice when it comes to domestic boilers.