To run a bath that has an average capacity of about 60 gallons (227 liters) of water, will cost us $0.15 cents per bath. For having a bath, we don’t pay just for the water, but also for the electricity to heat the water. Having two baths per week, during the year, it will cost us about $14.4.
How much electricity does a bath use?
first the energy used by taking a hot bath. 4200 J/litre/°C × 110 litre × 40 °C ≈ 18 MJ ≈ 5 kWh. (30 litres) uses about 1.4 kWh.
Does showering use electricity?
What’s more, because water coming out of shower heads is supposed to be hot water, showers are also energy hogs. They’re typically one of the largest drags on the hot water heater in the home, and water heating itself accounts for almost 17 percent of total home electricity, according to the Department of Energy.