Swimming Pool Air Source Heat Pump Calculator

Heat Pump Size Formula:

\[ \text{Size} = \frac{\text{Pool Volume} \times \Delta T}{\text{COP} \times \text{Hours}} \]

Pool Volume:

m³

Temperature Rise (ΔT):

Coefficient of Performance (COP):

Heating Time:

hours

Heat Pump Size (kW):

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1. What is a Swimming Pool Air Source Heat Pump Calculator?

Definition: This calculator estimates the required size (in kW) of an air source heat pump needed to heat a swimming pool based on volume, desired temperature rise, efficiency, and heating time.

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

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{Size} = \frac{\text{Pool Volume} \times \Delta T}{\text{COP} \times \text{Hours}} \]

Where:

\( \text{Size} \) — Required heat pump capacity (kW)
\( \text{Pool Volume} \) — Volume of water in the pool (m³)
\( \Delta T \) — Desired temperature rise (Kelvin)
\( \text{COP} \) — Coefficient of Performance (efficiency factor)
\( \text{Hours} \) — Desired heating time (hours)

Explanation: The formula calculates the energy required to heat the pool water and divides it by the heat pump's efficiency and available heating time.

3. Importance of Proper Sizing

Details: Correct heat pump sizing ensures energy efficiency, proper heating performance, and system longevity. Undersized units will struggle to heat the pool, while oversized units may short-cycle and reduce efficiency.

4. Using the Calculator

Tips: Enter the pool volume in cubic meters, desired temperature rise (default 5K), COP (default 5.0 for modern heat pumps), and heating time (default 24 hours). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical COP value for pool heat pumps?
A: Modern air source heat pumps typically have COP values between 4.0-6.0, with 5.0 being a good average for calculations.

Q2: How do I calculate my pool volume?
A: For rectangular pools: Length × Width × Average Depth. For irregular shapes, consult pool specifications or use our Pool Volume Calculator.

Q3: What ΔT should I use?
A: Typical values are 5-10K depending on climate and desired temperature increase. Higher ΔT values will require larger heat pumps.

Q4: How does heating time affect the calculation?
A: Longer heating times allow for smaller heat pumps, while faster heating requires larger capacity units.

Q5: Should I add a safety factor?
A: Consider adding 10-20% to the calculated size for heat loss compensation, especially for outdoor pools.