1. What is an Electric Pool Heater Size Calculator?

Definition: This calculator determines the required size (in kilowatts) of an electric pool heater based on pool volume, desired temperature rise, and heating time.

Purpose: It helps pool owners and professionals select the appropriately sized electric heater for efficient pool heating.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( kW \) — Heater size in kilowatts
• \( \text{Pool Volume} \) — Total water volume in gallons
• \( \text{Temperature Rise} \) — Desired temperature increase in °F
• \( \text{Hours} \) — Desired heating time
• \( 8.33 \) — Weight of one gallon of water in pounds

Explanation: The formula calculates the energy needed to heat a specific volume of water by a certain temperature in a given time.

3. Importance of Proper Heater Sizing

Details: Correct heater sizing ensures efficient operation, prevents energy waste, and extends equipment lifespan.

4. Using the Calculator

Tips: Enter your pool volume in gallons, desired temperature rise in °F, and how quickly you want to heat the pool (in hours). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical temperature rise for pools?
A: Most pools aim for a 20-30°F rise, depending on climate and personal preference.

Q2: How do I find my pool volume?
A: Use our Pool Volume Calculator or multiply length × width × average depth × 7.5 for rectangular pools.

Q3: What's a reasonable heating time?
A: Standard is 24-48 hours for initial heating, 8-12 hours for maintenance heating.

Q4: Does this account for heat loss?
A: No, consider adding 10-20% to the calculated kW for pools with significant heat loss.

Q5: Can I use this for other heater types?
A: This calculates electric heater size. For gas heaters, you'll need to convert to BTU/hr (1 kW ≈ 3412 BTU/hr).