An immersion heater needs a thermostat control to save money and to stop the water becoming dangerously hot. Set the temperature at 60°C (140°F).
If you have ‘Economy 7’ heating, you will have access to cheaper electricity rates for seven hours a night, starting between midnight and 1am.
To gain maximum benefit of hot water, use a large 40-50 gallon cylinder tank to store the water.
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