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Electricity consumption in the residential sector: 5.7%
Water heaters are the 5th highest electricity consuming appliance in
There are two common types of electric water heaters available in
Storage type: This type of heater contains a water tank. Water is heated up and stored when the heater is switched on. Generally speaking, a 15 to 20 litres storage type heater is sufficient for a family of four.
Instantaneous type: This type of heater heats up water instantly and is more popular in new built houses due to more advanced power generation setups. It operates at a power rate as high as 20,000 watts, equivalent to paying nearly $9 if you take a shower for half an hour. Gas water heaters are normally instantaneous type.