Understand boiler lockout fault causes, what you can safely check and when to call a qualified oil heating engineer to restore warmth and hot water at home.

Need an emergency oil boiler callout? Learn what to do safely, when to call an OFTEC engineer, and how to protect your home, tenants or small business.

Use this external oil boiler installation guide to plan a safe, efficient outdoor heating upgrade, from siting and oil tanks to qualified installation.