How we're operating during the COVID-19 pandemic

Find out more How we’re operating during COVID-19
  • Get the best quotes, fast!
  • Over 5,000 engineers across the UK
  • Gas Safe registered engineers

Need a New Boiler?

Get FREE no-obligation quotes now!

  • No delays! Get quotes today
  • Compare quotes & get the best prices
  • Gas Safe & OFTEC registered engineers
 4.8 stars

1,295 reviews

 4.8 stars

1,295 reviews

Vaillant ecoTEC plus 835 Combi Gas Boiler

Vaillant ecoTEC plus 835 Combi Gas Boiler Boiler
Typical Price (inc VAT)
£1,431
Typical installation Cost (inc VAT)*
£500 - £1000
Sundries (Filter, Flue, etc)
£300
Total Cost
£2,231 - £2,731

Get a quote to install this boiler

Need a repair instead? Get a repair quote
Make Vaillant
Model ecoTEC plus 835 Combi Gas Boiler
Is Condensing Condensing
Efficiency Rating 94%
Band Rating A Rated
LPG Compatible No
Standard Warranty 10 Years
Central Heating Max. Output 32.2 kW
Mounting Wall Mounted
Flow Rate 14.3 l/min
Typical Price (inc VAT) £1,431
Typical installation Cost (inc VAT)* £500 - £1000
Sundries (Filter, Flue, etc) £300
Total Cost £2,231 - £2,731
ERP Rating A Heat, A Water
Hot Water Max. Output 35 kW

* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.

Get a quote to install this boiler

Need a repair instead? Get a repair quote
Product Description

Designed and manufactured by Vaillant, the ecoTEC plus 835 is a highly reliable condensing combi gas boiler that comes with a host of features to benefit your home.

How efficient is the ecoTEC Plus 835?

This is a highly efficient boiler, as shown by the 94% ErP efficiency rating, which means that it has an ErP A-rating for heat. The unit is also awarded an ErP A-rating for water too thanks to the high flow rate of 14.3 litres per minute.

Is the output rating suitable for my home?

With an output rating of 32.2 kW, this boiler is most suited to larger homes that have a higher demand for heating and hot water.

What other options are available in the ecoTEC Plus range?

As well as this model with 32.2 kW central heating output, the Vaillant ecoTEC Plus range also includes combi boilers with CH output ratings of 20.4 kW, 25.7 kW, 30.1 kW and 30.9 kW. As well as the various outputs, the units can run on either natural gas or LPG.

Is a combi boiler the right choice for my home?

Combi boilers are great for smaller properties where space is limited as they don’t require an external water tank or cylinder since everything is wrapped up in one cost-effective unit.

How long is the warranty period?

Available with a 5 year warranty as standard, that can be extended to 7-10 years when installed by a Vaillant Advance installer, you’ll be well covered by the manufacturer in the unlikely event that something goes wrong.

What are the key features of this Vaillant boiler?

The many features of the ecoTEC Plus 835 include ultra-quiet performance (Quiet Mark accreditation), a highly reliable stainless steel heat exchanger designed to extend boiler life, backlit display for maximum control, a choice of app controls, frost protection and it’s been fitted with premium components you can be sure that this boiler isn’t going to let you down.

Thanks to being highly efficient, this Vaillant boiler will help to reduce your energy bills as well as your carbon footprint. As a smart boiler, it knows when you don’t need as much heating power and can automatically drop to using 16% of its maximum power, another great way to save you money on fuel.

There are many advantages to installing the Vaillant ecoTEC Plus 835, such as hot water on demand, efficient operation to reduce your carbon footprint, frost protection, quiet operation for a peaceful home and features a choice of apps and controls.

How big is the ecoTEC Plus 835?

Designed with a flexible installation in mind, ecoTEC boilers are compact wall-mounted units that can fit into a standard kitchen cupboard thanks to dimensions of only 720 x 440 x 372mm (HxWxD).

Get a quote to install this boiler

Need a repair instead? Get a repair quote

Get a quote to install this boiler

Need a repair instead? Get a repair quote

Need a new boiler?

Get FREE no-obligation quotes now!

Excellent 4.8 out of 5

Find approved boiler engineers
in your area.

Begin your search by entering your postcode below.

Or select your region from the list and start your search