Heat pump sizing guide
Our guide shows the ‘ideal’ capacity needed to consistently keep a pool at 27-28°C during your chosen season, and a pond at a holding temperature of 15°C in Winter / 20-22°C in Summer.
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About ‘ideal’ capacity
The capacity needed to hold a consistent 27-28°C varies with air temperature and heat loss. You’ll need far less to heat the same pool in the height of summer than at the start or end of the season.
We’ve assumed an average air temperature of 15°C across the season. Capacities quoted elsewhere are probably based on a higher average air temperature, and so would not meet your actual heating requirements.