De-icer

Product details

Learn more about the De-icer

About

Kasco De-icers help reduce ice buildup around docks, boats, piers, marinas, and other waterfront structures. By moving warmer water from below to the surface, they create and maintain an opening in the ice where protection is needed most.

Engineered for reliable winter operation, these units deliver industry-leading thrust to maintain more open water around valuable waterfront property. Durable stainless-steel construction, continuous-duty performance, and simple installation with included mooring ropes or optional dock mounts make Kasco De-icers a trusted solution for ponds, lakes, and marinas.

Applications

Residential docks
Backyard ponds
Commercial ponds
Retention ponds
Boat slips
Marinas
Boathouses
Piers
Shoreline equipment

Available Models

1/2, 3/4, and 1HP
120V and 208–240V
Single phase motor configurations
Power cord lengths of 25 ft., 50 ft., 75 ft., 100 ft., 150 ft., and 200 ft.
Custom cord lengths available

Warranty

3-year warranty

Features

Creates open water around docks and boats
Moves warmer bottom water toward the surface
Stainless steel components support winter durability
Saltwater and freshwater compatible

Performance

30 - 50 ft. of open water created when De-icer is installed pointed directly upward
40 - 60 ft. of open water created when De-icer is installed at an angle
Continuous-duty motor supports winter operation

Maintenance

Sacrificial anode protects against corrosion
Corrosion-resistant materials for long service life

Installation

Ships fully assembled for faster setup
Included mooring ropes support simple placement
No hardware needed unless using optional mount kit

Safety

Thermal overload protection
Operates from a 120V GFCI-protected outlet
ETL Listed to UL and CSA standards
UL, CSA, and NEC approved underwater-rated cable
Submersible quick disconnect and strain relief on power cord
Never enter the water with electrical equipment connected and / or in operation

Package Includes

Included Components

De-icing unit
Power cord
(2) 20 ft. mooring lines
Power cord with submersible quick disconnect and strain relief

Not Included

Universal Mount Kit or Horizontal Float mounting option
Control panel

Available Upgrades

Thermostat Control Panel
Timer and Thermostat Control Panel
Universal Dock Mount
Industrial Dock Mount
Horizontal Float

Over 50 Years of Dock Defense

Kasco De-icers protect docks, boats, and shorelines from ice damage. Warmer water is pulled to the surface to prevent ice formation and help avoid costly winter damage and seasonal removal.

Find the Right De-icer for Your Dock

How it Works

Specifications

2400D

1/2HP

25, 50, 100, 150, 200

120V

1

5.4

4

31

3400D

3/4HP

25, 50, 100, 150, 200

120V

1

6.6

4

37

3400HD

3/4HP

50, 100, 150, 200, 250, 300, 400

208-240V

1

3.1

4

37

4400D

1HP

25, 50, 75, 100, 150, 200

120V

1

9.1

4

42

4400HD

1HP

50, 100, 150, 200, 250, 300, 400

208-240V

1

4.5

4

42

Product Notes:
1. Models numbers that include “H” indicate a higher voltage.
2. Custom cord lengths available. Contact Kasco for details.

Blog posts

De-icing 101 - Back to the Basics

Kasco De-icers provide a simple way to protect your in-water property throughout winter while keeping fish healthy and saving time and money.

Testimonials for De-icer

"I experienced a power outage for 2 days, and when I went to check the house and dock, the entire area was frozen with about 6-8" of ice. After using a ceramic heater and drilling 1' holes around the De-icer, I was able to remove it, and it still worked perfectly! I was amazed. I dropped it back in the hole, and within 2 days, it had opened the area around my docks. I want to thank you for making a quality product. I will never buy anything but Kasco."

Paul | Rapid City, SD

"Just installed mine for its 20th winter of use. Works great and lasts forever!"

Bernard | Lake Ontario, Canada

"Saved both our dock and boat the last two winters. Had the area thawed and protected in no time. HIGHLY recommend."

Josie | Alberta, Canada

5 stars: 5 (83%)
4 stars: 1 (17%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Keeps the ice away from my dock and boat lifts all winter. 60'-80' wide area in January and February

This worked really well to break up the ice in front of my dock area on the bay. Only took 1 day to get it all broken up with 2 feet of ice!

Excellent machine used in Canandaigua Lake. Ditched the ropes and sprung for the mounts this year with great results in shallow water, not damaged by floating chunks of ice as was a constant problem in my past.

Unprecedented cold and a moon tide lifted one front piling of my boat lift by about 3 feet. It also ripped out the electric. The other front piling was traveling up and down about 2 feet per tide cycle. My boat was about to slide back onto the ice which was about a foot thick. My boat would have crashed backside onto ice and probably cracked open and sunk. I got my chain saw and cut a 3'x3' hole next to the floating dock (super easy to cut ice). It took all 15 inches of my chainsaw to hit water. I pushed the block of ice under the water and sent it away, dropped pump in and within 12 hours all 4 of my pilings were free of a foot of ice. The temps during this time period --Zero degrees and 20 for the daily high.-- My boat was no longer teetering with the tides.

This product is amazing! We saw the deep freeze coming and realized we needed to do whatever we could to help our dock survive the winter. This package showed up very quickly and was super easy to install. It is a workhorse for sure.

This product works great I wish it wasn’t so expensive but I guess you get what you pay for. I’ve lived on the lake for almost 30 years and I can say I dreaded the idea of getting in the water and try to rake the Muck. Well my neighbor told me about this product and I did a YouTube search and thought I will give it a go and I’m glad I did!

FAQs

Which mounting option would work best in my application?

Mounting varies by need. Mooring ropes allow vertical or angled suspension for circular or oblong openings. Use the Universal Dock Mount for stability in active waters. Horizontal Floats suit calm waters when no dock is available.

How shallow of water can this unit work in?

De-icers should be in water 6-10 ft deep, and 4-6 ft. off the bottom. Performance in shallow water (<6-10 ft.) is limited due to less warmer water. The deeper the water, and the deeper the diffuser is installed, the better.

What does a de-icer do for ponds, docks, and lakes?

A de-icer prevents ice buildup by keeping water moving around docks and structures. This helps protect equipment while allowing gas exchange for oxygen, supporting fish survival and healthier water conditions during winter months.

Are de-icers safe for fish, wildlife, and pond ecosystems?

Yes, de-icers help maintain health pond conditions in winter by preventing complete ice coverage. They create an open area that allows oxygen to enter the water, reducing the risk of fish stress or winter kill and supporting overall aquatic health.

What size de-icer is needed for my pond or dock area?

De-icer size depends on water depth, protected area, and winter severity. Larger areas or colder climates typically require higher horsepower, and selecting the correct size ensures reliable ice prevention and equipment protection.

Looking for more information?

Read more of our frequently asked questions about our De-icer.

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Moving Water Forward, Since 1968

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