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  • Homeowners
  • Heating Solutions
  • High efficiency boilers
  • Open vent boilers
ecoTEC plus open vent191Zoom Image

Open vent boilers

Open vent systems are normally connected to two tanks in the loft. A small ‘feed and expansion tank’ supplies water to the boiler and the radiators. A larger domestic cold water storage tank provides the cold water feed to an open vent hot water cylinder.
Although replacing the boiler and linking it to an existing open vent system is an option, most people opt to remove the tanks from the loft and to install a sealed system boiler or a combi.
Vaillant open vent boilers:

- ecoTEC plus 415, 418, 428 & 438

Location & suitable boiler type

Flat or bungalow with no roof space Combi
2 or more bathrooms System or Open vented
Low mains water pressure System or Open vented
Upgrading an existing conventional boiler to high efficiency System, Open vented or Combi
Many people in the home needing hot water on demand Combi or System boiler with a hot water cylinder
Loft conversion Combi

Downloads

  • consumer-brochurepdf (2.45 MB)
  • ecotec_user_guidepdf (0.94 MB)

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