Our website uses cookies to improve you experience Click here to find out how we use cookies

Vaillant ecoTEC Plus 826 Combi Boiler Natural Gas

Vaillant ecoTEC Plus 826 Combi Boiler Natural Gas

Extended lead times may apply. You can email or call 01213821112 to check stock level and delivery.

Designed for any home, the ecoTEC plus combination boiler from Vaillant is the ideal hot water solution. This flagship boiler offers a variety of models for you to choose from to suit all homes.

With precision heating and all new ioniDETECT technology, this innovative gas combustion monitoring technology ensures overall enhanced efficiency by reaching a wider modulation range of up to 1:10.

Take control of your boiler remotely with the intelligent myVAILLANT. The app is cleverly designed to allow complete control of your boiler through your smart phone and works on both Apple and Android. Whether you are checking your energy consumption, need up-to-date information about your heating system or want to improve the efficiency of your boiler; the myVAILLANT app allows complete control in the palm of your hands.

Vaillant are striving to offer low carbon solutions when it comes to their boilers, and that’s where the HyDeploy project comes in. This boiler is hydrogen prepared and has been successfully tested with up to 20% hydrogen mixed with natural gases.

With Vaillant’s LINbus technology, you can receive an accurate reading of flow rates and pressure differential, ensuring your boiler offers the highest performance possible.


Smart home compatible for ease of use and heating optimisation

Intuitive semi-touch interface

Reduce fuel bills with precision heating

Quick hot water delivery in approximately 5 seconds

Hand-crafted boilers in an award-winning manufacturing plant

Quiet Mark awarded for quieter operation

Easy installation and maintenance

Additional information:

Energy rating: A+++ to D

Output Central Heating: Nominal heat output range at 50/30˚C (Condensing mode)- 2.5-19.8kW

5 year guarantee (extended to 7 years if installed by a Vaillant installer)


MountingWall Mounted
Output (Kilowatts)24
Output (BTUs)81891
Width (mm)440
Height (mm)720
Depth (mm)335
Flow Rate (L/min)9.4
FuelNatural gas
Warranty (Years)5

Write a review

Please login or register to review

Small/Medium Items

For small items (under 2Kg) we use Royal Mail to send our parcels to the provided address and the standard shipping charge is £4.99 to any destination in the UK. 

For Medium items (From 2Kg to 15Kg) we use Parcel Force to send our parcels to the provided address and the standard shipping charge is £15 for Parcel Force 48 and £20 for Parcel Force 24 to any destination in the UK.

For Orders value less than £200, only payment in advance will be accepted (eg. Debit Card or BACS). 

Large Items

This is where we are different than other mainstream plumbing and heating merchants. We use our own drivers and vans to deliver large items and this for you means that:

  • We take great care to make sure the items arrive at your door safely with no damages.
  • We offer continuous assistance throughout the dispatch, transit and delivery process. So we keep you informed and make sure you have all you need for your project. 
  • We can collect cash on delivery, after you have checked and are happy with the goods which you have received.
  • You will decide the best time for the delivery and our driver will inform you one hour before arriving.
  • Our drivers are also fully knowledgeable on the products they are transporting, so that you can ask them any question when they arrive. 

How it works?

When you finished adding the items to the basket all you have to do is to enter your postcode and you will have an instant quote of the delivery charge. This depends on the Postcode and the items you have ordered.

FREE DELIVERY: Some items might have a promotional free delivery badge, add this items and then any other item added with be delivered free of charge. Please note that Free delivery offers do not cover zones 3 and 4 as per below table. For zones 5 and 6 an additional charge will be required to ship the items.


ZoneCostPostcodes Beginning With
1 £ 15.00B, CV, DE, DY, GL, HR, NG, NP, WR, WS, WV
2 £ 20.00BS, CF, CW, LE, MK, NN, OX, S, SK, ST, TF
3 £ 35.00AL, BA, BB, BD, BH, BL, BN, BR, CA, CB, CH, CM, CO, CR, CT, DA, DH, DL, DN, DT, E, EC, EN, EX, FY, GU, HA, HD, HG, HP, HU, HX, IG, IP, KT, L, LA, LD, LL, LN, LS, LU, M, ME, N, NE, NR, NW, OL, PE, PL, PO, PR, RG, RH, RM, SA, SE, SG, SL, SM, SN, SO, SP, SR, SS, SW, SY, TA, TN, TQ, TR, TS, TW, UB, W, WA, WC, WD, WF, WN, YO
4 £65.00DG, EH, G, KA, ML, TD
5Call us for a quote



  • Product Code: Vaillant ecoTEC Plus 826 Combi Boiler Natural Gas
  • Availability: In Stock
  • £1,559.00
  • Ex Tax: £1,299.17

Available Options