What is a chemical flush?

A chemical flush is a cleaning process that is performed on a central heating system to remove any dirt, debris, rust, and other contaminants that may have accumulated over time.

The process involves adding a special chemical solution to the system and circulating it through the pipes and radiators to remove any build-up. This helps to improve the efficiency of the system and prevent damage and breakdowns.

A chemical flush is usually recommended for older systems that have not been cleaned for a long time, or for systems that are showing signs of poor performance, such as low heat output or frequent breakdowns.

A chemical flush is an important step in maintaining the health and efficiency of your central heating system.

Here are the steps to perform a chemical flush:

  1. Turn off the heating system and let it cool completely.
  2. Drain the system of all water and refill it with a chemical cleaning solution, according to the manufacturer’s instructions.
  3. Circulate the cleaning solution through the system for the recommended amount of time, usually several hours.
  4. Drain the cleaning solution from the system and refill it with fresh water.
  5. Circulate the fresh water through the system to rinse out any remaining debris.
  6. Drain the system again and refill it with the correct amount of inhibitor, to protect against future corrosion.
  7. Turn the heating system back on and check for any leaks or problems.