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Pool Heater Size Calculator

Pool Heater Size Formula:

\[ Size = \frac{Surface\ Area \times 1000 \times \Delta T}{12} \]

sq ft
°F

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1. What is a Pool Heater Size Calculator?

Definition: This calculator estimates the required heating capacity for a swimming pool based on surface area and desired temperature increase.

Purpose: It helps pool owners and professionals determine the appropriate heater size for efficient pool heating.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Size = \frac{Surface\ Area \times 1000 \times \Delta T}{12} \]

Where:

Explanation: The formula accounts for pool size and the energy needed to raise water temperature, with 1000 representing the BTU factor per square foot.

3. Importance of Proper Heater Sizing

Details: Correct heater sizing ensures efficient operation, proper heating times, and avoids energy waste from oversized units.

4. Using the Calculator

Tips: Enter the pool surface area in square feet and the desired temperature increase in °F. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the 1000 factor in the formula?
A: This represents the approximate BTU requirement per square foot of pool surface area.

Q2: How do I measure pool surface area?
A: For rectangular pools: length × width. For circular pools: π × radius². For irregular shapes, break into regular shapes and sum.

Q3: What ΔT should I use?
A: Typical values range from 10-20°F depending on climate and desired temperature rise.

Q4: Does this account for heat loss?
A: This is a basic calculation. For pools with high heat loss (windy areas, uncovered), increase size by 20-30%.

Q5: Can I use this for saltwater pools?
A: Yes, but saltwater may require specific heater materials to prevent corrosion.

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