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Open Vent Boilers

Vaillant’s range of reliable high quality regular open vent boilers delivers for all house types with higher hot water demands from a single bathroom home through to five-bedroom multi-bathroom mansions. Our open vent range covers 12kW to 35kW and they work perfectly with our range of Vaillant cylinders.

ecoTEC plus 412, 415, 418, 424, 430 and 435

ecoTEC plus open vent boiler range

  • Rear flue option
  • Compact dimensions
  • Large backlit plain text display
  • Removable side panels

ecoFIT pure open vent boiler

412, 415, 418, 425, 430 and 435 outputs

  • Compact, cupboard fit solution
  • Top and rear flue options
  • Automotive grade aluminium heat exchanger
  • Easy installation and maintenance
  • Standard 2 year warranty. Free 7 year warranty when registered by a Vaillant Advance partner (promotion until 31/12/18)