1. Introduction
The Aquascape 39000 Pond Heater and De-icer is designed to maintain an opening in the ice of your pond during cold winter months. This ensures proper gas exchange, which is crucial for the health and survival of pond fish by preventing the buildup of harmful gases under the ice. The unit operates at 300 watts and features durable stainless steel construction for longevity.

Image 1: Aquascape 39000 Pond Heater and De-icer with its packaging.
2. Safety Information
- Electrical Safety: Always unplug the unit from the power outlet before handling, installing, or performing any maintenance. Ensure the power outlet is a GFCI (Ground Fault Circuit Interrupter) protected outlet.
- Hot Surface: The de-icer surface becomes hot during operation. Allow the unit to cool completely before touching it after it has been unplugged.
- Water Level: Ensure the de-icer is always submerged in water during operation. Operating the unit out of water can cause damage and create a fire hazard.
- Cord Management: Do not run the power cord under rocks or other heavy objects that could pinch or damage it. Avoid placing the cord in areas where it could be cut or abraded.
- Children and Pets: Keep children and pets away from the pond and the de-icer during operation.
3. Product Features
- 300-Watt Heating Element: Efficiently maintains an ice-free area in your pond.
- Stainless Steel Construction: Provides extreme durability, preventing corrosion and cracking, ensuring long-term use in harsh winter conditions.
- Integrated Thermostat: Automatically turns the heating element on and off to maintain water temperature and prevent overheating.
- Built-in LED Indicator Light: A red light indicates when the unit is actively heating. A blue light indicates the unit is powered but not heating, or has been removed from water.
- Safety Shut-off: Automatically deactivates the heating element if the unit is removed from the water, preventing damage and ensuring safety.
- 22-Foot Power Cord: Offers ample reach for placement in various pond setups.

Image 2: Top view of the Aquascape 39000 De-icer, showing the LED indicator.
4. Setup Instructions
- Unpack: Carefully remove the de-icer from its packaging. Inspect the unit and power cord for any signs of damage. Do not use if damaged.
- Placement: Position the de-icer in an area of the pond where you wish to maintain an ice-free opening. Ensure it is fully submerged and floating freely.
- Aeration (Optional): If using an aeration system in addition to the de-icer, place the aerator or air stone directly underneath the de-icer. This enhances efficiency and gas exchange.
- Power Connection: Plug the 22-foot power cord into a GFCI-protected outdoor electrical outlet. Ensure the outlet is protected from weather elements.
- Initial Check: Once plugged in, the LED indicator light on top of the de-icer will illuminate. It will turn red when heating and blue when not heating (e.g., water temperature is above the thermostat setting or unit is out of water).

Image 3: Suggested pond installation diagram for the Aquascape De-icer. Note the thermostat turns off at 70°F (21°C) as a safety shut-off.

Image 4: The Aquascape De-icer floating in a pond with fish during winter conditions.
5. Operating Instructions
The Aquascape 39000 Pond Heater and De-icer operates automatically once plugged into a suitable power source. Its integrated thermostat will activate the heating element when the water temperature drops to a level requiring de-icing, and deactivate it when the temperature rises above 70°F (21°C).
- Monitoring: Periodically check the LED indicator light from a distance to confirm operation. A red light indicates active heating, while a blue light indicates the unit is powered but not heating.
- Ice Hole Maintenance: The de-icer is designed to maintain a small opening in the ice, not to heat the entire pond. This opening facilitates gas exchange, which is vital for fish health.
- Continuous Operation: For optimal fish safety during freezing conditions, the de-icer should remain plugged in and operating continuously throughout the winter months.
Video 1: Official product video demonstrating the features and benefits of the Aquascape 300 Watt Pond De-icer.
6. Maintenance
- Regular Inspection: Periodically check the de-icer and its power cord for any signs of wear, damage, or corrosion.
- Cleaning: If algae or debris accumulate on the unit, unplug it and allow it to cool completely. Gently clean the surface with a soft brush or cloth and rinse with water. Do not use harsh chemicals.
- Storage: At the end of the winter season, unplug the de-icer and allow it to cool. Clean it thoroughly and store it in a dry, protected area away from direct sunlight and extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| De-icer not heating (no red light) |
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| De-icer not creating an ice-free opening |
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| GFCI outlet trips repeatedly |
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8. Specifications
| Feature | Detail |
|---|---|
| Model Number | 39000 |
| Power Consumption | 300 Watts |
| Construction Material | Stainless Steel |
| Cord Length | 22 feet |
| Product Dimensions | 8 x 8 x 6.5 inches |
| Item Weight | 3 pounds |
9. Warranty and Support
The Aquascape 39000 Pond Heater and De-icer is backed by a 3-year limited warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
For technical support, warranty claims, or further assistance, please contact Aquascape customer service. Refer to the official Aquascape website or product packaging for current contact information.





