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The Vaillant Ecofit Pure 425 Open Vent Boiler is a lightweight, compact and high performance open-vent (heat only) boiler. Ideal if you are upgrading a traditional open-vented heating system, it is a great choice for households with higher water demands or where water pressure is low. With built-in efficiency, the system reduces to just 20% of maximum output when you need less heat.
• Compact, cupboard fit solution
• Top and rear flue options for location flexibility
• Powerful aluminium heat exchanger
• Clear LED display is visible even in dim lighting for easier installation and use
• Accessible layout allows all components to be replaced from the boiler front for straightforward maintenance