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Vaillant EcoTec Plus 831 Combi Boiler

Vaillant EcoTec Plus 831 plus flue Vaillant ecoTEC plus combination boiler range Vaillant ecoTEC plus high efficiency combination boilers deliver top More information
  • In stock Available To Order Online
  • Delivery BIG & HEAVY Select A Day
  • Warranty 5 Years
£1,267.55 Incl. Tax: £1,056.29 Excl. Tax:

Availability: In stock

Vaillant EcoTec Plus 831 Combi Boiler

Vaillant EcoTec Plus 831 combi boiler

Vaillant EcoTec Plus 831 combi boiler high efficiency combination boilers deliver top SEDBUK Band 'A' rated (SAP 2009) fuel efficiency and powerful DHW performance.

Vaillant EcoTec Plus 831 combi boiler, 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 Vaillant EcoTec Plus 831 combi boiler 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

Vaillant EcoTec Plus 831 combi boiler Features and benefits:
  • 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
  • 7 Year Warranty

Products No Longer Required

You can return any unused product to us in its original condition for a refund within 14 days of delivery to you. You the buyer will pay the cost of returning the item. See below for estimates on the cost of returning items.

If you advise us of your return more than 14 calendar days following the date of delivery we will advise you whether the return is acceptable and any costs associated. Any request has to be made via our RMA page. Phone returns are not acceptable.

Faulty or Damaged Products

In the unlikely event that a delivered product (including special order items) is faulty or damaged, we will exchange it or provide you with a full refund, as long as we are notified of the product's fault within 48 hours (24 hours paving and windows) of it being delivered to you.
To arrange for the product to be collected, e-mail support@bso.co.uk  with your order number and details of the product to be returned. We will collect it at no expense to yourself, and either provide a replacement or process a refund if the product is no longer in stock. After 24 hours please refer to manufacturer returns policy.

Alternatively, you can make arrangements for collection of the product through our nominated carrier. The cost of the return will be at our expense. We require the return of the product within 14 days of the refund request being made.

All refunds will be made to the account used to purchase the product.

We reserve the right to inspect all returned products prior to agreeing to any part-refund, full refund or product exchange.


Returns via courier

All products marked as a parcel will be able to be returned by a standard courier the approx cost of this will be £7.50 per item. Costs may vary depending on the size and location of the parcel. 

If you need any further product information in order for you to estimate the cost of returning the item please contact us.

Returns via pallet or artic

All goods marked as 'BIG & HEAVEY' will incur a cost of  approx £45 per pallet for you to arrange. Costs may vary depending on where you are sending it from etc. 

If you need any further product information in order for you to estimate the cost of returning the item please contact us.