Kasco Dock De-Icers
Kasco Kasco DeIcers
  • Kasco Dock De-Icers
  • dock de icing

Kasco Dock DeIcers

Kasco De-Icers circulate water to prevent ice formation and damage associated with ice expansion, jacking and lifting. Suspend de-icers underwater around docks, piers, duck ponds, marinas, etc. to prevent costly ice damage.

Available in 1/2, 3/4, and 1 hp sizes, these 120V units fit most location and electrical requirements. Kasko also offers an optional C-20 Time and Temperature control box that may be added to a De-Icing system to help control electric bills by regulating usage.

Each unit includes two 20 foot mooring lines for installation.

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Tech Spec Product Info User Generated Content


  • Longer-life top and bottom ball bearings
  • Environmentally friendly oil-filled motor with a hard-face internal mechanical seal and external lip seal for protection against leaks.
  • Flood oil lubricated for excellent heat dissipation.
  • Highly efficient, lower power consumption than competitive equipment
  • Superior dependability in salt-water or other corrosive environments. All external metal motor, float, and hardware components are of stainless steel composition and protected by a sacrificial zinc an
  • Requires minimal maintenance. We recommend cleaning the stainless steel motor housing once or twice per year and replacing the sacrificial zinc anode when visibly corroded.
  • Extremely efficient and productive operation generating excellent flow per kW of power used
  • ETL listed to stringent UL and CSA Safety Standard


How To Use A Deicer In Shallow Water

To prevent ice in shallow water, direct the flow of warmer water from the deeper area into the shallower area. Sometimes it is easier to de-ice a boat by installing the de-icer at or near the bow, angled toward the stern. If the water flow is directed toward the shore or a retaining wall, it will forming a T shaped pattern effective for de-icing.

In tidal waters, split the difference in water depth so the De-Icer is in shallow water at low tide and deep water at high tide. Or, tie your De-Icer to the boat so it rises and falls with the tide.

Ice Damage Problems

  • Ice jacking or lifting: Jacking or lifting damage can happen any time water or ice levels fluctuate, and is often caused by the tide. Large freshwater bodies such as the Great Lakes often experience weather and wind changes that cause small but rapid level changes. can occur anytime ice and water levels fluctuate. Jacking damage is not uncommon on man-controlled bodies of water (locks, falls, dams etc). Keeping water around dock structures free of ice the best form of protection. Partially open water reduces ice thickness around docks and pilings to minimize risks.
  • Ice expansion: The larger the body of water, the greater the ice expansion damage risk to dock structures. Place horizontal deicers between docks to maintain a buffer zone of open water.
  • Winter Kill Conditions: Thick ice and heavy snow pack can lower pond and lake oxygen levels enough to cause fish die offs if sunlight cannot penetrate into the water. This causes underwater vegetation to die off, with decomposition using too much of the oxygen for fish to survive. To prevent this, try to keep 1% of the total water surface area ice-free.
  • Warm Weather Water Quality: Marinas and waterfront areas are increasingly faced with water not circulated efficiently by wind or curret due to docks and walkways. Dirty, stagnant water breeds algae and odor issues. Use Kasco De-Icers to create artificial current and prevent this problem.

Note: De-Icing is not an exact science. The effectiveness depends on water depth, the presence of underwater obstructions, and the geographic location. Deicers work by circulating the warmer bottom water (heated by the earth) closer to the surface. In shallow areas, there is less warm water available for circulation. Kasco recommends each De-icer be installed 2.5 to 5 ft below the surface. Obstructions like dock floats, boat lifts, large pilings and boats can restrict water flow and reduce the effective amount of water circulation.

By geographic location, it means the longer and colder the your winter weather is, the more water cools and the amount of open water is reduced. Bottom contour and salinity also affect ice formation.

Kasco De-Icer Model

Motor  Running Amps  Thrust  Typical Open Water Area 
KAS-F2400D  1/2 HP  5.0  26 lbs.  Up to 50 ' Diameter Circle 
KAS-F3400D  3/4 HP  6.7  34 lbs.  Up to 75' Diameter Circle 
KAS-4400D  1 HP  11.2  52 lbs.  Up to 90' Diameter Circle 
BRAND: Kasco
Type: De-Icers
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