To avoid confusion over debits and credits, avoid thinking of them in the way that they are used in everyday language, which often refers to a credit as increasing an account and a debit as decreasing an account. For example, if our bank credits our checking account, money is added to it and the balance increases.
One way to reduce the frequency of this occurrence is to maintain an air pocket at the top of the water heater tank. This air pocket will form in the tank by design - however, it will be reduced over time by the everyday use of your water heater. To replenish this air pocket: Turn off the water heater.
This is what is known as a convection current. Itâs what happens when you heat a pot of water on the stove or turn on a convection heater in a cold room. Because air is a poor heat conductor, convection heaters work slowly, gradually warming the air until itâs reached a uniform temperature. Types of Convection Heaters There are five types of convection heaters: oil, ceramic, water, fan heaters, and furnaces. Each works on the same principle, but generates and distributes heat in different ways.