Vaillant ecoFit Pure 425 Open Vent Boiler

The Vaillant ecoFit Pure 425 Open Vent Boiler provides powerful 25 kW heating for medium-sized homes with traditional open vent systems. This lightweight A-rated model weighs just 23 kg with compact dimensions perfect for kitchen cupboard installations. Extendable warranty up to 10 years when paired with Vaillant Advanced controls offers exceptional long-term value.

Key Features

• Lightweight at only 23 kg for straightforward installation
• Compact design fits 295mm deep kitchen cupboards
• Designed for traditional open vent heating systems
• Premium stainless steel heat exchanger for durability
• Clear diagnostic display with simple user interface
• 10-year warranty available with Vaillant Advanced controls
• Low NOx burner for reduced environmental impact
• Quiet and efficient operation minimises running costs

Technical Specifications

Why Buy

The Vaillant ecoFit Pure 425 delivers robust heating performance in a lightweight, space-saving package ideal for modernising traditional open vent systems. German engineering ensures reliability while the extendable 10-year warranty provides outstanding protection. Simple diagnostics and efficient components reduce lifetime ownership costs.

Suitable For

• Medium homes with open vent heating systems
• Kitchen cupboard replacements requiring lightweight boilers
• Properties seeking maximum warranty protection options

Order now for the Vaillant ecoFit Pure 425 Open Vent Boiler - powerful, compact heating with up to 10-year warranty protection.

Please note: Delivery times may vary depending on location, with specific details outlined below.

Standard Delivery

UK Mainland 

• Delivery Time: 2–4 working days
• Free Delivery on most orders
• £4.95 for small items
• £69 for Solar Panels, Batteries and other specialized large items delivery

Express Delivery

UK Mainland

• Delivery Time: 1–3 working days
• Free Delivery
• £4.95 delivery for small items

Channel Islands

• Postcodes Covered: GY*, IM*, JE* 
• Minimum Order: £50
• Delivery Fee: £70

Northern Ireland, Offshore Territories & Scottish Islands 

• Postcodes Covered: BT*, HS*, KW, ZE
• Minimum Order: £50
• Delivery Fee: £35

Same Day Delivery 

• Eligible Postcodes:
  E*, EC*, N*, NW*, SE*, SW*, W*, WC*, HA*, UB*, EN*, IG*, RM*, KT*, SM*, CR*, BR*, DA*, TW*
• Minimum Order: £50
• Same Day Delivery Fee: £60
• Special Requests or Locations:
  For areas outside these postcodes or urgent quotes, please email orders@qualityheating.co.uk and we’ll do our best to accommodate.

Collections

Want to collect your order instead?You’re welcome to do so — just email us at orders@qualityheating.co.uk or message us via WhatsApp with your preferred collection time, and we’ll confirm the details.

Collection address: 284 Water Rd, Unit 9, London, HA0 1HX