Vaillant 970mm Flue Extension 60/100mm

The Vaillant 303903 970mm Flue Extension provides essential length adjustment for ecoTEC boiler flue installations, enabling installers to extend horizontal or vertical flue runs by up to 970mm between elbows, adaptors and terminals. This durable polypropylene extension ensures compliance with maximum flue length requirements while maintaining system efficiency and safety.

Key Features

• 970mm effective length for significant flue run extension
• 60/100mm concentric polypropylene construction for condensing boilers
• Compatible with all Vaillant ecoTEC HE, Pro, Plus and Sustain ranges
• Simple push-fit connection system for rapid installation
• High-temperature and condensate-resistant material
• White finish for discreet external installations
• Can be cut to length where precise adjustments required

Technical Specifications

Why Buy

This genuine Vaillant 970mm flue extension offers installers maximum flexibility when achieving required flue lengths in challenging installations. The robust polypropylene construction withstands condensing boiler operating conditions while the push-fit design ensures secure, leak-free connections. Essential for meeting manufacturer maximum flue length specifications.

Suitable For

• ecoTEC boiler installations requiring additional flue length
• Horizontal and vertical flue configurations needing extension
• Complex flue runs between elbows, adaptors and terminals

Order now for the Vaillant 303903 970mm 60/100mm flue extension - the essential accessory for flexible ecoTEC boiler flue installations.

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