ecoTEC plus combination boiler range
The ecoTEC plus combi boilers, have compact dimensions and one of the lowest weights in their class (from 36kg) - meeting the growing demand from installers and end users for smaller, lightweight appliances. The ecoTEC plus combi 824 and 831 have a CH (Central heating) heat output range of 6.7 - 19kW and 8.7 - 24kW respectively. Vaillant's latest edition to the range is the ecoTEC plus combi 837 with a CH heat output range from 12.0 - 28.0kW. The ecoTEC range has been designed with ease of installation in mind and includes service valves with pipe clip distance connections.
The boilers are all SEDBUK Band 'A' rated (SAP 2009) combi models, have powerful DHW performance (from 23kW) and come complete with Vaillant's 'AquaComfort' system. This incorporates a warmstart facility, providing instantaneous hot water delivery and a controlling system to ensure a constant hot water temperature. ecoTEC plus boilers have a built-in expansion vessel of 10 litres and all models can easily be converted to run on LPG. All ecoTEC plus combi boilers have a 2 year guarantee.
ecoTEC plus combination boilers have the following central heating heat output ranges:
- ecoTEC plus 824 - 6.7 - 19.0kW
- ecoTEC plus 831 - 8.7 - 24.0kW
- ecoTEC plus 837 - 12.0 - 28.0kW
Features and benefits |
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| High condensing efficiency | SEDBUK efficiency of 89.4% (SAP 2009) |
| Stainless steel heat exchanger | Allows more heat to be extracted by recapturing otherwise lost heat |
| 'AquaComfort' system | Providing instantaneous hot water at a constant temperature |
| Built-in status / diagnostic display | Comprehensive status and diagnostic information and push button programming |
| Single electronic circuit board | Simplifies commissioning and servicing |
| Simple new control panel | Straightforward push button controls, provide improvements via: - intuitive heating and hot water adjustment by ‘hot keys’ similar to those used on mobile phones - fault codes, which are supplemented by plain text descriptions |
| 'Wizard' installation feature | To guide the installer through the correct set up and commissioning of the boiler on first ignition, saves time and ensures ‘right first time’ installation |
| Front access to components | As with previous models, but we now also have new removable side panels for additional accessibility and flexibility |
| Exceptional build quality | Tried and tested manufacturing methods and retained compact dimensions, as well as low lift weight, means reassured continuity with the previous ecoTEC range |




