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What?? Not even close.

To put numbers on this, you can buy a C rated fridge freezer in the UK which uses 176 kWh of energy per annum.

That's an average power consumption of 20W. But electric heaters are say 1200W or 2000W.

That includes the lights and all the rest. That gives you like 3m³ (790 gallons) of 60°C (140°F) water. Which is really not a lot.