Thanks for the reply, going to give it a try this weekend and hopefully it's fine. Fairly happy that as long as I terminate the old off-peak supply and the "peak" supply is connected, being able to control both elements is going to "just work" as the logic is in the controller, rather than the...
Have recently moved into a property and having a bit of a nightmare with the power companies. In short, there used to be storage heaters (no gas in the building) and these were swapped out 3 years ago. At the same time, the dual rate meter was changed for a single rate one which the previous...