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Yes, they are definitely storage heaters. The make is Alto....which I had never heard of before, and they are manual not automatic. Obviously we can only adjust them for the next days input as they only power up during the economy 7 hours, and I understand about turning the input up for more heat the next day. The letting agent of the flat had told us about turning the knob and hearing it click but when I just turned it up, there was no click, so I turned it down, then up again, and that was when I heard the click in the 2 different places so was confused what one I should take note of for the setting the next day. Suppose it's just the case of trial and error till we get used to them. Thank you for your reply