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  • edit, got that wrong: a Rancillo Silva V3 draws 1100 watts, if you have it on for 24hrs a day, that's (1100*24)/1000=26.4KWH per day. So depending on your electricity tariff, a good price is something like 10p/kwh, so it's 26.4*10 = £2.64 per day. I assume however you'd only actually have it on for at most 3 hrs a day (cost £0.33 per day), and even if you did have it on constantly, it's not constantly drawing 1100 watts as the thermostat will cut out the power once that water's hot enough.

  • Only when the thermostat is switched on. Let it warm up (30 mins+) then calculate the duty cycle. Eg. if it's on 10% of the time then it's actually more like 110 Watts.

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