Delivery fast fast takes on heat and saves you quite long time after stopping.
Consumption, meanwhile, looks to me like this:
Settings 600W (practically it varies between 570W-595W, ie optimal).
Heat-set at 50% ca.
Total runtime: 6: 30h
Total cost: 0.804 (at a price of about 0.214 / kWh (excluding electricity tax)).
Will it continue to monitor and see whether it is mathematically worth at the end of the month.
So far I am satisfied and I therefore would also recommend.