GetBrent

Vaillant

ecoFIT pure 825 25kW combi

Gas combi boiler, 25.2 kW hot water output

Last reviewed 13 September 2026

Specifications

Hot water output25.2 kW
Central heating output19.1 kW
ErP classA
Seasonal efficiency94%
Dimensions700 x 390 x 295 mm
Weight32 kg
Warranty10 years when installed by Vaillant Advance installer
Hot water flow rate10.4 litres per minute

Figures taken from the manufacturer: source. Specifications change by model year and configuration - confirm with the supplier before relying on them.

Who uses it

A gas combi boiler with 25.2 kW of hot water output, sized for a flat or small house with one bathroom. It delivers about 10.4 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 10 years when installed by Vaillant Advance installer. Seasonal efficiency is 94%.

Looking for one?

Find the firms covering your area that hire and sell Vaillant, and ask what is on the yard today.

Vaillant suppliers

Compare the Vaillant ecoFIT pure 825 25kW combi

vs Worcester Bosch Greenstar 2000 25kW combivs Worcester Bosch Greenstar 2000 30kW combivs Worcester Bosch Greenstar 4000 25kW combivs Worcester Bosch Greenstar 4000 30kW combivs Worcester Bosch Greenstar 8000 Life 30kW combivs Worcester Bosch Greenstar 8000 Life 35kW combivs Worcester Bosch Greenstar 8000 Life 40kW combivs Vaillant ecoTEC plus 825 25kW combivs Vaillant ecoTEC plus 832 32kW combivs Vaillant ecoTEC plus 835 35kW combivs Vaillant ecoTEC Pro 24kW combivs Vaillant ecoTEC Pro 30kW combivs Vaillant ecoFIT pure 830 30kW combivs Vaillant ecoFIT pure 835 35kW combivs Baxi 600 Combi 2 24kWvs Baxi 600 Combi 2 30kWvs Baxi 800 Combi 2 30kWvs Baxi 800 Combi 2 36kWvs Ideal Heating Logic Max Combi C24 24kWvs Ideal Heating Logic Max Combi C30 30kWvs Ideal Heating Vogue Max Combi C26 26kWvs Ideal Heating Vogue Max Combi C32 32kWvs Viessmann Vitodens 050-W 30kW combivs Viessmann Vitodens 050-W 35kW combi

Other Vaillant models

ecoTEC plus 825 25kW combiecoTEC plus 832 32kW combiecoTEC plus 835 35kW combiecoTEC Pro 24kW combiecoTEC Pro 30kW combiecoFIT pure 830 30kW combiecoFIT pure 835 35kW combi

GetBrent is an independent directory and is not a dealer for, nor affiliated with, Vaillant. Model and brand names are the trademarks of their owners, used here only to identify the products they refer to.