Hot Water Storage Tank Formula:
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The hot water storage tank calculation determines the appropriate tank size based on the number of persons in a household. This ensures adequate hot water supply for daily needs while optimizing energy efficiency.
The calculator uses the simple formula:
Where:
Explanation: The formula allocates 75 gallons of storage capacity per person, which is a standard estimation for residential hot water requirements.
Details: Correct tank sizing is crucial for ensuring sufficient hot water supply, reducing energy consumption, and preventing unnecessary costs from oversized tanks.
Tips: Enter the number of persons in the household. The calculator will determine the recommended tank volume in gallons.
Q1: Why 75 gallons per person?
A: This is a standard estimation that accounts for typical daily hot water usage including showers, laundry, and dishwashing.
Q2: Are there factors that might require adjustment?
A: Yes, factors like high water usage appliances, large bathtubs, or simultaneous usage patterns may require larger tank sizes.
Q3: What about tankless water heaters?
A: This calculation is specifically for storage tank systems. Tankless systems are sized based on flow rate requirements.
Q4: Does climate affect tank sizing?
A: Colder incoming water temperatures may require slightly larger tanks to maintain desired output temperatures.
Q5: Should I consider future expansion?
A: It's often recommended to add a small buffer (10-15%) if household expansion is anticipated in the near future.