Boost Function on EPH Controls Thermostat

  • Posted On: 7 Feb 2022
To be energy efficient please use the thermostat as instructed:

1. Leave on AUTO function. If the whole house is too hot or you do not want the heating on press "OFF" on the thermostat. Please do not turn the heating off at the boiler as this often results in low pressure on the boiler which will affect the heating and hot water when you want to turn it back on.  

2. If you cannot agree on a set temperature throughout the property leave on AUTO and turn down or off individual radiators.

3. If you wish for a higher temperature (up to a maximum of 23 degrees) please use the BOOST function for 1,2 or 3 hours at a time (refer to instructions below).


The thermostat can be boosted up to a maximum of 23 degrees for 1, 2, or 3 hours at a time while the thermostat is operating in all modes except for holiday mode. We would recommend having the heating no higher than 20 degrees.

Press the BOOST button 1, 2, or 3 times, the time that the boost will be activated to will flash on the screen.  

If you do not press any other button, the boost will activate to the temperature displayed on the screen after 5 seconds.  

If you press the OK button, the temperature will now flash. You can edit the temperature if you press the + or – buttons.  

Press the OK button or wait for 5 seconds for the boost to activate.  

BOOST TO will now be displayed on the screen with the time that it is activated to displayed above this text.  

Press the BOOST button again to deactivate the boost


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