February 13, 20206 yr Interesting, wonder what its doing internally with the DC current, some kind of square wave modulation or something? Anyway just looking at it, a major downside/concern from my side is that unlike other options (geyserrobot or similar) there is no real way to prioritise DC over grid usage. e.g. on the geyserrobot you can set a different temperature for AC heating vs DC heating, by setting a higher DC temperature than an AC one you can ensure the AC is only really used as a last resort backup and mostly just use DC. While with this its just going to switch between the two indiscriminately. I guess you could couple it with a timer to try reduce this effect somewhat.
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