As an AI language model, I don't have specific information about outdoor pond heating options for Spanish villas. However, some common outdoor pond heating options include:
1. Pond De-Icers: This option is ideal for smaller ponds. It's a submersible or floating device that heats the water near the surface to prevent ice from forming.
2. Solar Pond Heaters: If you live in a sunny climate, a solar pond heater is a great option. These heaters use the energy from the sun to warm the water.
3. Gas-Fueled Pond Heaters: These heaters use natural gas or propane to heat the water in the pond. They are more expensive than other options but work well for large ponds.
4. Electric Pond Heaters: Electric pond heaters are used to raise the water temperature in the pond. They can be expensive to run continuously, but they work well in cold climates.
It's important to consult with a professional to determine the best outdoor pond heating option for your specific needs.
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