1. What is a Pool Heat Pump Calculator?

Definition: This calculator estimates the required size (in kW) of a heat pump for a swimming pool based on surface area, evaporation rate, and heat loss.

Purpose: It helps pool owners and professionals determine the appropriate heat pump capacity for efficient pool heating.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Size — Required heat pump capacity (kW)
• Surface Area — Pool surface area (m²)
• Evaporation Rate — Heat loss due to evaporation (kW/m²)
• Heat Loss — Additional heat loss through walls and floor (kW)

Explanation: The surface area multiplied by evaporation rate gives the base heating requirement, then additional heat loss is added for the total capacity needed.

3. Importance of Proper Sizing

Details: Correct heat pump sizing ensures energy efficiency, proper heating performance, and prevents equipment strain from over/under sizing.

4. Using the Calculator

Tips: Enter the pool surface area in m², evaporation rate (default 0.0005 kW/m²), and any additional heat loss (default 0 kW). All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical evaporation rate?
A: For outdoor pools, 0.0005 kW/m² is common, but this varies with climate, wind exposure, and pool usage.

Q2: How do I calculate surface area?
A: For rectangular pools: length × width. For circular pools: π × radius².

Q3: When would I have significant heat loss?
A: In colder climates, with uninsulated pools, or when the pool is significantly deeper than average.

Q4: Should I round up the calculated size?
A: Yes, it's recommended to round up to the nearest available heat pump size for better performance.

Q5: Does this account for desired temperature increase?
A: No, this calculates maintenance heating. For heating cold water, you'll need additional capacity.