Reduce on/off cycles with improved turn down

With electronic burner controls you can:

• Set the low fire point lower than the ignition point to improve the turndown ratio and reduce the frequency of on/off cycles and save on energy bills. Note: With an electronic control the ignition point and modulation curves can be different for each fuel.
  
  
• Maximise turndown for gas and oil.
  
  

With an electronic control, the low fire point can be set lower than the ignition point, which means that the turn-down ratio can be increased. As a direct result burner on/off cycles and their associated cold air purges are reduced, resulting in energy savings.

While savings from reduced on/off cycles will vary with boiler utilisation, savings of 5% have been reported on a burner that, prior to conversion, had an on/off frequency of approximately once in every 10 minutes.

Electronic control can also maximise turndown in dual fuel burners, regardless of which fuel is being utilised. In contrast, mechanical controls restrict turndown levels to the higher oil settings, which means opportunities for savings when using gas are lost.