ecoFIT Pure
Worcster Bosch

ecoFIT pure boiler range and prices

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ecoFIT pure prices

An ecoFIT Pure boiler on its own costs between £950 and £1,750 rising to £2,450 to £4,500 including full installation. The price being based on a like for like replacement in the same location.


  • The price of the ecoFIT Pure is determined by the power output of the boiler with the range starting at 12kW and rising to 35kW with the price rising accordingly.


Prices per model

ecoFIT pure Fuel Output Average Boiler Only Price Average Price with installation Quote
825 Combi Gas 25kW £1,200 £2,700 Free Quote
830 Combi Gas 30kW £1,350 £2,850 Free Quote
835 Combi Gas 35kW £1,500 £3,000 Free Quote
412 Conventional Gas 12kW £950 £2,450 Free Quote
415 Conventional Gas 15kW £1,050 £2,550 Free Quote
418 Conventional Gas 18kW £1,150 £2,650 Free Quote
425 Conventional Gas 25kW £1,250 £2,750 Free Quote
430 Conventional Gas 30kW £1,350 £2,850 Free Quote
435 Conventional Gas 35kW £1,750 £3,250 Free Quote
612 System Gas 12kW £1,000 £2,500 Free Quote
615 System Gas 15kW £1,200 £2,700 Free Quote
618 System Gas 18kW £1,400 £2,900 Free Quote
625 System Gas 25kW £1,550 £3,050 Free Quote
630 System Gas 30kW £1,650 £3,150 Free Quote

ecoFIT pure boiler range

The ecoFIT Pure is Vaillant's compact range of boilers designed to fit in standard kitchen cupboards. They are availble as combi, system and conventional boilers and are perfect to heat small, medium and large homes due to the wide range of power outputs.


  • Available from 12kW right up to 35kW to suit all but the very largest homes.


  • Very high efficiency (94% ErP A rating) means lower energy bills


  • Awarded the Quiet Mark for the low operating volumes so no problem if installed in a kitchen


Key features

  • Fuel: Gas


  • Boiler type & output (kW):
  • Combi 25kW, 30kW, 35kW
  • System 12kW, 15kW, 18kW, 25kW, 30kW
  • Conventional 12kW, 15kW, 18kW, 25kW, 30kW, 35kW


  • Dimensions (mm): 700 h x 390 w x 295 d


  • Solar Compatible: Yes


  • ErP Efficiency rating: A (94% efficiency in central heating)


  • Quiet mark accreditation: 49dB one of the quietest combi boilers


  • Guarantee: 10 years


  • Lightweight: 32kg


  • Flow rate: 10.5 litre per minute


  • Easy to use: simple controls and clear display


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