Water has a specific heat capacity of about 4.2 Kilojoules per kilogram per degree Kelvin, so it would take about 6 Kilowatt Hours of electricity to heat 100 Litres of water from 15 degrees centigrade to 65 degrees centigrade. As a standard immersion heater is 3KW, so it would take 2 hours to heat 100 Litres of water.
Drinking a large amount of carbonated drinks at bedtime can also cause hiccups, as the air in these drinks can distend the stomach. Consuming a large amount of alcohol before going to bed is another possible cause of hiccups during sleep. The excessive amount of alcohol can cause the stomach to distend.
Causes. 1  Causes of bloating include swallowing air. 2  Swallowed air is usually burped up, but if not the air passes through your digestive system and releases as flatus. 3  You may find that excessive air swallowing also causes hiccups. 4  Foods and beverages can cause bloating. 5  The amount and type varies from person to person.