Why Do Hot Water Heaters Lose Their Efficiency Quicker in Households

question 57

Multiple Choice

Why do hot water heaters lose their efficiency quicker in households with hard water?

• A)The hard water calcium and magnesium ions corrode the heating element.
• B)The hard water calcium carbonate deposits oxidize the inner tank wall.
• C)The calcium carbonate on the inner surface of the hot water tank builds up to the point that it insulates the water from the heating element.
• D)The hard water calcium ions exchange with iron ions from the inner metal wall which react with the water heater base to form rust and deteriorate the bottom of the tank.

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Definitions:

Inventory Loan

A loan that is secured by the inventory of a business, allowing the company to use its inventory as collateral.

Maturity Factoring

A financing method where a business sells its invoices to a factor at a discount but receives payment only when the customer pays the invoice at maturity.

Factoring

A financial transaction where a business sells its accounts receivable to a third party at a discount to raise immediate capital.