Assuming your have your meter configured to a time of use setting, off-peak times apply in your area at all times outside of 7am-11pm, Mon to Fri. Setting your heater over 20 degrees will not have any impact on your tariff, but having a heater set to a higher temperature will definitely use more electricity! You can find out more about this and other tips here.
If you'd like to chat further about your meter configuration, we'd encourage you to get in touch with our web chat team here.
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