Baxi 424 Heat Only Boiler

The Baxi 424 Heat Only Boiler from the 400 series is one of the lightest boilers available in the UK at just 19.5 kg. This compact wall-mounted model is perfect for standard kitchen cupboard installations and delivers powerful 25 kW output for medium-sized homes. Featuring rear flue option and simple installation, it works with both open vent and sealed heating systems.

Key Features

• Ultra-lightweight at only 19.5 kg for effortless installation
• Compact dimensions fit standard 270mm deep kitchen cupboards
• Suitable for both open vent and sealed heating systems
• Versatile 60/100mm flue system with convenient rear flue option
• No pump over-run or permanent live switch required
• Concealed controls with intuitive LED operating display
• Quick installation with minimal additional components
• A-rated efficiency for cost-effective heating

Technical Specifications

Why Buy

The Baxi 424 Heat Only Boiler provides powerful heating performance in an incredibly lightweight, compact package ideal for replacement installations. The concealed controls maintain clean aesthetics while the LED display ensures straightforward operation. Flexible flue options and dual system compatibility maximise installation versatility.

Suitable For

• Medium homes requiring 25 kW heating output
• Kitchen cupboard replacements needing lightweight boilers
• Properties benefiting from rear flue installation flexibility

Order now for the Baxi 424 Heat Only Boiler - powerful, ultra-light heating with easy installation and 5-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