Economy 10

I installed storage heaters in my flat three years ago and at that time I was on an Economy 7 meter. Two years ago my meter failed and it was replaced with an Economy 10 by my electricity provider at that time. I wasn't informed that the E7 had been replaced with E10 and just assumed it was an E7 supply, it only became obvious when I changed supplier earlier this year.

Does anyone know if the storage heaters only take charge during the off peak times of E10 or will they take it for the period as if I still have E7- i.e. 7 hours through the night time which includes some peak charge hours.. I have three periods of off peak with my E10 supply of 5 hours through the night and 5 hours at other times of the day/evening.

In addition to this, the previous E7 only supplied the storage heaters so no other appliances could take advantage of the cheaper rate whereas I can get the cheaper rate with the E10 during all off peak times with any appliance.

Grateful for any insight into this.