Practical heating guidance
Boiler and heating advice
Clear information to help you understand boiler faults, maintenance, replacement decisions and the condition of your heating system.
Start with the right topic
Helpful information for your heating system
Boiler faults and breakdowns
Learn why careful fault diagnosis matters and what information is useful when a boiler stops working or repeatedly locks out.
Annual boiler servicing
Understand what a proper boiler service is intended to check and why the procedure varies by appliance and fuel type.
Replacing a boiler
Consider sizing, hot-water demand, controls, flue position and system condition before choosing a replacement boiler.
Heating controls
Controls should suit the property and heating system. Boiler replacement is a useful time to review how the system is operated.
Power flushing
Cold radiators and poor circulation need assessment. Power flushing can help suitable dirty systems, but it is not the answer to every fault.
Domestic oil heating
Find dedicated information for domestic oil boiler installation, servicing and repair by an OFTEC registered engineer.
