Vaillant ecoTEC exclusive with Green IQ

Combination boiler: ecoTEC exclusive 835, ecoTEC exclusive 843
System boiler: ecoTEC exclusive 627

Power rating options (hot water): 35kw to 43kw.
Central heating: 27 to (36kw for 843 combi)
Hot water performance: combi option: 14.5 to 17.8 l/min

Standard manufactures guarantee: 5 years
Standard manufactures guarantee when installed by PDL: 8 years – 10 years available

ERP: A 94%
Price range: £1390 – £1925
This is the price of the boiler only, you will also need a flue (horizontal or vertical depending on location of boiler), controls and installation.
Do we recommend: Yes
Do we fit: Yes

Pro’s

Extra condense heat exchanger and a Modulation range of 1:10 is something no other boiler can boast. The combi boiler comes in a 35 and 43kw option that gives a staggering hot water performance. This boiler is the “money is no obstacle” choice for people who just want the best for mid-size and larger homes. 94% ERP rating when combined with a Vaillant weather compensator or V smart giving an extra 4% efficiency then really it is hard to see how this boiler can be improved on.

Con’s

Its exclusive but expensive! If you have a low consumption of hot water this boiler is not needed. Only available in 27kw system boiler option – this will comfortably power a large property, however there are some very large homes for which this is not enough and would have to go for the plus which has a 37kw option.

Opinion

WOW, amazing boiler, if you want the best look no further. Would give it 10/10 if it wasn’t so expensive.