Glad to hear it worked. If instead of the link, you used the spare black wire to connect Hive 3 to the DHW LR then you could use the Hive to control it. Only if you think it worthwhile of course, most folks don't bother, but as you have a Hive with a hot water option going spare...
Unfortunately though, after all of that, I don't think you will make any water savings, so tend to agree with...
Unfortunately though, after all of that, I don't think you will make any water savings, so tend to agree with...
However, when you have had time to evaluate it properly, it would be interesting to hear back from you with the result.if you are using the CH at this time of year the HW pre heat wont make any difference, it just keeps the water within the boiler warm when heating isn't on