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Vaillant ecoFIT pure 835 Combi Gas Boiler

From: £2,299.00

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ecoFIT pure 835 Combi Gas Boiler

Is Condensing


Efficiency Rating


Band Rating

A Rated

LPG Compatible


Standard Warranty

10 Years

Central Heating Max. Output

26.7 kW


Wall Mounted

Flow Rate

14.1 l/min

ERP Rating

A Heat A Water

Hot Water Max. Output

35 kW

Product Description

The EcoFIT pure is a condensing wall-mounted combi gas boiler, designed and manufactured by Vaillant.

How efficient is the Vaillant ecoFIT Pure 835?

The ecoFIT Pure 835 is a highly efficient boiler with an efficiency rating of 94% and ErP A-rating for heating and hot water.

Is the output rating suitable for my home?

With combi boilers you have to consider two separate output ratings: the central heating (CH) output and the domestic hot water (DHW) output. The ecoFIT Pure has a CH output of 26.7 kW and DHW output of 35 kW. This makes it well suited to homes with around 15 radiators and 1-2 bathrooms.

Are other output ratings available in the ecoFIT Pure range?

The 835 is the most powerful boiler in the ecoFIT range. There are 2 other ecoFIT Pure combi boilers which have lower CH and DHW outputs as well as system boilers too which store hot water in a cylinder.

It is ultra-quiet while in operation and with it also being Quiet Mark-approved you can be sure that it will never disturb you while in operation. This boiler also has a small footprint and is flexible in where it can be placed. With this boiler comes top and rear flue options over all boiler models, helping to allow for flexibility in where it can be placed throughout a wide range of property types. It is compact in size making it able to fit in a cupboard.

Is a combi boiler suitable for my home?

A combi boiler is the most suitable option for small to medium-sized homes with a low to moderate demand for heating and hot water. They’re cost-effective space-saving units as there’s no need for any additional tanks or cylinders.

How long is the warranty period?

A 2 year warranty is available as standard on the ecoFIT Pure 835 and can be extended to as long as 7 or 10 years when installed by a Vaillant Advance installer.

What are the key features of the ecoFIT Pure 835?

This boiler is an easy to use unit with it coming with a clear LED display helping you to see the boiler where light may be limited. With this also comes a Vaillant fault code diagnostic with these being easily recognisable Vaillant codes you can be sure that in the unlikely event the boiler goes wrong you’ll be able to find out the issue quickly and easily.

This boiler has an accessible layout helping to allow all components to be replaced from the front of the boiler. As well as this this boiler comes with a high quality component helping to offer peace of mind for the lifetime of the product. This boiler is also compatible with the Vaillant intelligent range of controls helping for the most convenient and energy efficient system. With this boiler comes a 2 year warranty, another way in which it gives you that added security that you have brought a reliable boiler.

How big is the ecoFIT Pure 835?

An ecoFIT Pure combi boiler is ideal if you don’t have much room in your property, thanks to dimensions of 700x390x295mm (HxWxD).