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There are so many de-icers to choose from. What size do I need? | Decorative Ponds & Water Gardens Q & A


Q: There are so many de-icers to choose from. What size do I need?

Q: There are so many de-icers to choose from. What size do I need?

Pia – Spokane, WA

A: A de-icer is an important piece of equipment in areas where water features freeze over during the winter. This little device maintains a small opening in the ice, which allows harmful gas to escape into the air allowing for efficient air exchange. It can be the difference between life and death for the fish and other inhabitants in your pond.

Which de-icer is best for your situation? It will depend on how many gallons your pond holds, and if you’re using it alone or with an aeration system.

First, here’s what we recommend for de-icers based on the size of your pond:

  • Up to 250 gallons: 100 to 250 watt de-icer
  • 250 to 500 gallons: 300 watt de-icer
  • 500 to 1,000 gallons: 750 watt de-icer
  • 1,000 to 1,500 gallons: 1,250 watt de-icer
  • 1,500 to 2,000 gallons: 1,500 watt de-icer

K&H™ Perfect Climate™ Pond De-Icer comes in 250-, 750- and 1,500 watt options. The thermostatically controlled de-icer is designed for floating or submersible use. Farm Innovator’s Floating Pond De-Icer, pumps out 1,250 watts of ice-melting power. It’s also thermostatically controlled and turns on when water temperature drops below 35°F.

These de-icers do a great job, but keep in mind that they can be expensive to run non-stop during the cold months. A 1,500 watt de-icer can cost up to $75.00 to operate. That’s a big bill for a small hole!

That’s where an aeration system comes into play.

Aeration systems – can help maintain a hole in the ice while adding oxygen and are infinitely more energy-efficient than pond de-icers. When used in tandem, aeration can significantly reduce the wattage requirements of your pond de-icer, allowing the use of a smaller 100 watt de-icer. It’ll cut energy costs and save you money all season long. For example a 2,000 gallon pond using the PondAir™ 4 and 100 Watt Thermo-Pond De-Icer will cost $5.40 per month instead of $75.00 using a de-icer alone. Not a bad deal!

If you decide to go this route – and why wouldn’t you? – Select the Airmax® PondAir™ and Thermo-Pond 3.0 De-Icer Combo. The combo comes with either the Airmax® PondAir™ 2 (for ponds 1,000 gallons or less) or the Airmax® PondAir™ 4 (for ponds 2,000 gallons or less). Both the PondAir™ 2 and PondAir™ 4 includes: air stones, check valves, black vinyl air tubing and the 100 Watt Thermo-Pond De-Icer. For an additional charge, you can also throw in a Mini Boulder TrueRock™ Cover to protect the air compressor.

De-icers are important, but they don’t have to break the bank. Invest in an aerator-de-icer combo and save your money for something you really want – like some new koi!

Pond Talk:What parts of your winter landscape do you most look forward to?

Safeguard Your Fish This Winter - PondAir (t) 2 & Thermo-Pond De-Icer Combo

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