Swimming Pool Heat Pump Size Calculator UK

Heat Pump Size Formula:

\[ \text{Size} = \frac{\text{Volume} \times \Delta T \times \text{Factor}}{\text{Time}} \]

Pool Volume:

m³

Temperature Rise (ΔT):

Heat Factor:

kWh/m³ K

Heating Time:

hours

Heat Pump Size (kW):

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1. What is a Swimming Pool Heat Pump Size Calculator?

Definition: This calculator estimates the required heat pump size (in kW) for swimming pools in the UK based on pool volume, desired temperature rise, 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:

\[ \text{Size} = \frac{\text{Volume} \times \Delta T \times \text{Factor}}{\text{Time}} \]

Where:

\( \text{Size} \) — Heat pump size (kW)
\( \text{Volume} \) — Pool volume (cubic meters)
\( \Delta T \) — Desired temperature rise (Kelvin)
\( \text{Factor} \) — Heat factor (0.00116 kWh/m³ K for water)
\( \text{Time} \) — Desired heating time (hours)

Explanation: The formula calculates the energy required to heat the pool water and divides it by the desired heating period.

3. Importance of Proper Heat Pump Sizing

Details: Correct sizing ensures energy efficiency, proper heating performance, and avoids unnecessary costs from oversized units.

4. Using the Calculator

Tips: Enter pool volume in m³, desired temperature rise (typically 5-10K), heat factor (default 0.00116), and desired heating time (usually 24-72 hours).

5. Frequently Asked Questions (FAQ)

Q1: What's a typical temperature rise for pools?
A: Most pools aim for a 5-10K temperature rise depending on season and usage.

Q2: Why is the heat factor 0.00116?
A: This is the specific heat capacity of water (1.16 kWh/m³ K) converted to the formula units.

Q3: How do I find my pool volume?
A: Measure length × width × average depth (in meters) for rectangular pools, or use our Pool Volume Calculator.

Q4: What heating time should I use?
A: Standard is 24-48 hours for initial heat-up, then 24 hours for maintenance.

Q5: Does this account for heat loss?
A: No, consider adding 20-30% to the calculated size for typical UK heat loss.