Intermittent heat is a system that is designed to be on for less than 16 hours per day. For systems on for more than 16 hours per day, this would be classed as continuous heating. 

If intermittent heating is selected then an uplift factor will be applied, therefore, you can enter a percentage allowance to oversize your heating system accordingly. A normal allowance for Intermittent Heating would be 15%, however, this can be reduced dependent on the efficiency of the property.

For any further questions please speak to your Mentor on Freephone 01244 784 260 or email [email protected]