Baxi Duo-Tec Main Heat Exchanger 5E with Burner – Refurbished | Part No. 5114687

If your Baxi Duo-Tec, Platinum, or Combi boiler is producing poor heating output, running inefficiently, or showing signs of heat exchanger failure, replacing the complete heat exchanger assembly is the most reliable fix. The Baxi Duo-Tec Main Heat Exchanger 5E (Part No. 5114687) — with Burner & Burner Gasket Installed is a fully refurbished, ready-to-install unit covering the full Baxi Duo-Tec range and selected Platinum, Combi, and System models.

This listing is for the heat exchanger with the burner and burner gasket already fitted — a time-saving advantage for engineers installing on-site. Each unit is fully refurbished and tested before dispatch, and comes with a 12-month warranty.

Compatible Boiler Models

Key Features

• Baxi part number 5114687 — 5-element (5E) main heat exchanger
• Burner and burner gasket pre-installed — ready for immediate fitting
• Fully refurbished and tested before dispatch
• Weight: 10,000g | Dimensions: 50 × 50 × 50 cm
• 12-month warranty included

Delivery & Returns

Orders placed before 1:00 PM (Monday–Friday) are dispatched the same working day. Standard and next-day delivery options available at checkout. Next-day orders placed on Fridays arrive Monday — select Saturday delivery at checkout for weekend delivery. Returns accepted within 30 days if unused and in original packaging.

Note: Installation must be carried out by a Gas Safe registered engineer.