Dock Deicer | Kasco Marine De-Icers
- FREE 1-3 DAY DELIVERY:
- Lower 48 States USA only
- SUPPORT:
- Lifetime Technical Support
- WARRANTY:
- 3 Years
Description
Protect Your Dock, Boat Lift & Waterfront From Winter Ice Damage
Kasco Marine De-Icers protect docks, boats, pilings, boat lifts, seawalls, slips, marinas, and other waterfront structures by circulating naturally warmer bottom water toward the surface before damaging ice can build around them.
A Dock De-Icer does not heat the water. Its submerged high-thrust propeller draws relatively warmer water from below and moves it toward the surface. The combination of warmer water and continuous circulation helps create and maintain open water around the area you need to protect.
Choose from 1/2 HP, 3/4 HP, and 1 HP models with 120V and 208–240V configurations available depending on horsepower. Then select the mounting system that gives you the right depth, angle, and flow direction for your dock.
For automatic winter operation, pair a compatible 120V model with a C-10 thermostat or C-20 timer + thermostat. For a cleaner waterfront installation, add MagnaClips to organize the long power cord along the dock and Protective Cord Wrap where additional abrasion protection is desired.
Horsepower Matters. Placement Matters Just as Much.
Move Warmer Bottom Water Where Ice Normally Forms
During winter, relatively warmer water remains deeper in the water column while colder water sits closer to the surface.
The De-Icer moves that lower water upward and creates circulation beneath the surface. The moving water helps limit ice formation around docks, boats, pilings, lifts, seawalls, and other waterfront structures.
Changing the motor's depth, angle, and direction changes where that warmer water travels, which is why the right mounting system is a major part of a successful installation.
2400D
120V De-Icer with 31 lb of current published thrust.
3400D / 3400HD
Available in 120V or 208–240V with 37 lb of current published thrust.
4400D / 4400HD
Available in 120V or 208–240V with 42 lb of current published thrust.
Long Factory Cords
Factory cord options allow the motor to reach the installation area without relying on an extension cord.
Need help building the complete system? Call Weeders Digest at 877-224-4899 with your dock dimensions, expected winter water depth, location, available voltage, and photos of the area you need to protect.
Features
Kasco Dock De-Icer Features
High Water Movement
Current North American models produce 31, 37, or 42 lb of thrust depending on horsepower.
Three Horsepower Sizes
Choose 1/2 HP, 3/4 HP, or 1 HP depending on the size and severity of the application.
Multiple Voltage Options
120V models are available across the horsepower range, while 208–240V versions are available for 3/4 and 1 HP units.
Suspension Included
Two 20-foot mooring ropes are included with every current De-Icer package.
Multiple Mounting Options
Choose rope suspension, Universal, Industrial, specialty freestanding, or oscillating configurations.
Automatic Controls
Compatible thermostat and timer controls can automate De-Icer operation.
Cord Accessories
MagnaClips help organize the factory power cord while Protective Cord Wrap can provide added abrasion protection in exposed areas.
3-Year Warranty
Current De-Icer units include a three-year limited manufacturer warranty.
Models & Specs
Current Kasco De-Icer Specifications
| Model | HP | Voltage | Amps | Minimum Depth | Thrust | Factory Cord Lengths |
|---|---|---|---|---|---|---|
| 2400D | 1/2 HP | 120V | 5.4A | 4 ft | 31 lb | 25, 50, 100, 150, 200 ft |
| 3400D | 3/4 HP | 120V | 6.6A | 4 ft | 37 lb | 25, 50, 100, 150, 200 ft |
| 3400HD | 3/4 HP | 208–240V | 3.1A | 4 ft | 37 lb | 50, 100, 150, 200, 250, 300, 400, 500 ft |
| 4400D | 1 HP | 120V | 9.1A | 4 ft | 42 lb | 25, 50, 75, 100, 150, 200 ft |
| 4400HD | 1 HP | 208–240V | 4.5A | 4 ft | 42 lb | 50, 100, 150, 200, 250, 300, 400, 500 ft |
Mounting Options
Choose the De-Icer Mount That Fits Your Waterfront
The mounting method controls where the De-Icer sits, how deep it operates, and where the warmer water is directed.
Mooring Rope Suspension
Two 20-foot ropes are included. Suspend vertically for a more circular opening or angle the De-Icer toward a specific target.
Universal Mount
Uses a customer-supplied 1-inch nominal pipe and provides adjustable depth and angle from a dock, piling, wall, or similar fixed structure.
Universal + Simple Swivel
Adds the Simple Swivel system so the mounted De-Icer can be rotated more easily to redirect water flow.
Industrial Mount
Uses a customer-supplied 1.5-inch nominal pipe and provides a heavier-duty mounting system for demanding locations.
Industrial + Simple Swivel
Combines the heavier-duty Industrial Mount with easier rotational adjustment.
U-Bolt Mounting Kit
Allows compatible Universal or Industrial Mount bases to attach to a piling without drilling directly into the structure.
Bottom Stand
A Weeders Digest freestanding option for sites where dock-mounted or rope-suspended installation is not practical.
Oscillating Attachment
Rotates the De-Icer through a programmed sweep to move water across a larger or irregular protection area.
Mount Comparison
Which Dock De-Icer Mount Should You Choose?
| Mount | Best Use | Main Advantage |
|---|---|---|
| Mooring Ropes | Simple dock, boat, or piling installations | Included and allows vertical or angled operation |
| Universal Mount | Residential docks and fixed structures | More precise depth and angle adjustment |
| Universal + Simple Swivel | Docks where flow direction may change | Depth, angle, and easier rotational adjustment |
| Industrial Mount | Commercial or harsh waterfront environments | Heavier-duty fixed mounting |
| Industrial + Simple Swivel | Demanding locations needing directional adjustment | Heavy-duty structure with easier rotation |
| U-Bolt Kit | Compatible piling installations | Can avoid drilling into the piling |
| Bottom Stand | Locations without a practical dock attachment point | Freestanding positioning |
| Oscillating Attachment | Large or irregular protection areas | Sweeps circulation through a broader area |
Rope Suspension
Included Mooring Rope Installation
Every current Kasco De-Icer includes two 20-foot mooring ropes, making suspended installation the simplest option for many docks.
Suspend the motor vertically to move warmer water directly upward and create a more circular opening.
Suspend it at an angle to create a longer directional flow that can target a shoreline, boat lift, slip entrance, seawall, or another specific structure.
Dock Mounts
Universal & Industrial Dock Mount Systems
Universal Mount
The current Universal Mount uses a customer-supplied 1-inch nominal pipe and allows the unit to be positioned at different depths and angles.
This provides more consistent placement than ropes where wave action, current, or dock configuration makes suspended positioning difficult.
View the Kasco Universal Dock Mount
Industrial Mount
The Industrial Mount uses a customer-supplied 1.5-inch nominal pipe and is intended for harsher waterfront environments that benefit from a heavier-duty mounting system.
Bottom Stand
Freestanding Bottom Stand Mount
The Weeders Digest Bottom Stand provides a freestanding installation option when a suitable dock, piling, or rope-suspension point is unavailable.
This can be useful around shoreline structures, pond edges, and locations where the De-Icer must be positioned away from the dock and aimed back toward the area that needs protection.
Oscillating Mount
Oscillating Dock De-Icer Attachment
A fixed De-Icer sends its water flow through one pattern. The optional Oscillating Attachment rotates the motor through a programmed sweep so one unit can influence a much broader section of waterfront.
This can be especially useful for long docks, multiple boat slips, marina layouts, and irregular protection zones.
Programmable Rotation
Set the sweep to direct circulation through the specific area that needs protection.
Adjustable Height
The mounting system can be positioned to match the desired motor depth.
12V Oscillator
The oscillating mechanism uses a low-voltage control system.
Larger Coverage Potential
Oscillation can substantially increase the area influenced by one properly positioned De-Icer compared with a fixed direction.
Controllers & Timers
Automatically Control Your Dock De-Icer
A De-Icer does not necessarily need to run continuously. A properly selected control can operate the system according to outdoor temperature, time of day, or both.
| Controller | Compatible Use | Control Method | Best For |
|---|---|---|---|
| C-10 | Compatible 120V De-Icers | Thermostat | Simple automatic temperature-based operation |
| C-20 | Compatible 120V De-Icers | 24-hour timer + thermostat | Temperature control plus scheduled runtime |
| High-Voltage Control | 208–240V systems | Model-specific control | High-voltage De-Icer installations |
C-10 Thermostat
Kasco C-10 Temperature Controller
The C-10 provides simple temperature-based automatic control for one compatible 120V Dock De-Icer.
0°F–80°F Range
The C-10 operates over an approximately 0°F to 80°F adjustable temperature range.
Approx. 30°F Starting Point
A setting near 30°F is a practical starting point for many freshwater De-Icer installations.
Temperature-Only Control
The controller cycles according to ambient outdoor temperature rather than a daily schedule.
One De-Icer
One C-10 controls one compatible Kasco De-Icer.
C-20 Timer + Thermostat
Kasco C-20 Timer & Thermostat Controller
The C-20 combines temperature control with a 24-hour timer so you can determine both when the De-Icer is allowed to operate and how cold it must be.
0°F–40°F Thermostat
The thermostat operates over an approximately 0°F to 40°F range.
24-Hour Timer
Program the operating periods that fit your winter conditions.
Timer + Temperature
Automatic operation can require both the programmed time period and thermostat condition to be active.
One De-Icer
One C-20 is intended to control one compatible De-Icer.
Recommended Accessories
Protect the Power Cord & Keep Your Dock Installation Organized
Dock De-Icers often use long factory power cords running from the submerged motor back to shore power. MagnaClips help organize the cable along compatible dock framing, while Protective Cord Wrap can add another protective layer where exposed cable may contact abrasive surfaces.
MagnaClips Magnetic Cord Management System
Route your Dock De-Icer power cord neatly along compatible dock framing instead of allowing long cable runs to hang from the dock, cross common walking areas, or remain loosely positioned around waterfront equipment.
- 10 magnetic cord holders and ferritic steel mounting brackets
- Fits cords up to approximately 1" in diameter
- Can hold multiple smaller cords when they fit properly
- Approximately 20 lb magnetic pull strength
- Rubber-coated magnets
- Marine-grade adhesive included
- Customer-provided screws can also be used where appropriate
- Magnetic holder can release under extreme cord tension
- Leave holders attached to cords during seasonal storage
For the cleanest installation, mount the steel brackets behind dock rails or framing whenever the dock layout allows it.
Shop MagnaClips
Protective Cord Wrap
Protective Cord Wrap adds a braided outer layer around compatible power cable where the cord may be exposed to rock, sand, dock framing, shoreline debris, or repeated abrasion.
- Heavy-duty semi-rigid PET braided sleeve
- 10 mil construction
- Approximately 25% edge overlap
- Split design wraps around the existing cable
- No plug removal required
- Flexible and lightweight
- UV-resistant construction
- Can be reopened for cable inspection
- Multiple length options available
Because this Protective Cord Wrap was originally configured around Weeders Digest AquaThruster cord sizes, confirm fit with the specific De-Icer cord diameter and length before ordering it for a Dock De-Icer.
Shop Protective Cord WrapUse the Two Accessories for Different Jobs
Sizing & Placement
How to Size & Position Your Dock De-Icer
Horsepower alone does not determine how much water will stay open. Start with the dock layout, expected winter water depth, climate, wind exposure, current, surrounding structures, and available electrical supply.
1/2 HP
A practical option for smaller protection zones and favorable water-depth and climate conditions.
3/4 HP
A common choice for northern residential dock applications requiring additional thrust.
1 HP
Provides the highest current published thrust in the standard De-Icer range for larger or more demanding protection areas.
Placement Matters
Correct depth and direction can be as important as increasing horsepower.
Vertical vs. Angled Installation
Vertical installation generally moves warmer water straight upward and produces a more circular opening.
Angled installation directs the circulation toward a particular dock section, boat lift, shoreline, seawall, or slip and generally produces a longer flow pattern.
Water Depth
How Deep Should a Dock De-Icer Be?
Current North American specifications list a 4-foot minimum water depth for the standard De-Icer models.
Adequate depth gives the motor access to more relatively warm water and provides the clearance needed for effective circulation.
Do Not Touch Bottom
Keep the motor elevated so it does not rest directly on lake or pond sediment.
Maintain Clearance
Adequate bottom clearance reduces the chance of pulling weeds, sediment, or debris into the propeller.
Use Deeper Water
When the dock itself is shallow, position the De-Icer in nearby deeper water and angle the flow toward the dock when the site allows it.
Account for Drawdown
Use expected winter water levels rather than assuming summer depth will remain unchanged.
Installation
Dock De-Icer Installation Basics
- Identify the protection area.
Determine which docks, pilings, lifts, boats, slips, seawalls, or shoreline structures must remain free from damaging ice buildup. - Measure winter water depth.
Allow for seasonal water-level changes. - Select horsepower and voltage.
Match the motor to climate, depth, layout, power availability, and protection area. - Choose the mount.
Use suspension ropes, a Universal or Industrial Dock Mount, Bottom Stand, or Oscillating Attachment. - Choose the flow direction.
Vertical positioning produces a more circular pattern while angled positioning targets specific areas. - Protect and organize the cord.
Use MagnaClips for compatible dock-side routing and add Protective Cord Wrap where fit is confirmed and abrasion protection is desired. - Connect to the proper electrical supply.
Use the correctly grounded, GFCI-protected circuit required for the De-Icer. - Add automatic control if desired.
Select a compatible temperature or timer control for the motor voltage. - Test before freeze-up.
Verify motor operation, mount security, depth, direction, cord routing, and water circulation. - Inspect throughout winter.
Weather, water levels, moving ice, snow, and electrical conditions can change during the season.
Safety
Dock De-Icer Safety Guidelines
Use GFCI Protection
Operate the De-Icer from the properly grounded and GFCI-protected electrical supply required for the installation.
Use the Proper Factory Cord
Choose a motor with the correct factory cord length instead of adding an extension cord to submerged equipment.
Never Enter Powered Water
Never enter the water while the De-Icer is operating or connected to power.
Mark Open Water
Use Thin Ice or Open Water signage, lighting, barriers, fencing, or other precautions appropriate for the location.
Disconnect Before Service
Disconnect electrical power before handling, cleaning, adjusting, or servicing the De-Icer.
Inspect Regularly
Automatic controls do not replace routine winter inspection of the motor, dock, electrical system, cable, and open-water area.
Specifications
Dock De-Icer Specifications
| Product Type | Submerged propeller-driven dock and waterfront De-Icer |
|---|---|
| Horsepower Options | 1/2 HP, 3/4 HP, and 1 HP |
| Voltage Options | 120V and 208–240V depending on model |
| Published Thrust | 31 lb, 37 lb, or 42 lb depending on model |
| Minimum Published Depth | 4 ft |
| Included Suspension | Two 20-foot mooring ropes |
| Universal Mount | Available separately; uses customer-supplied 1" nominal pipe |
| Industrial Mount | Available separately; uses customer-supplied 1.5" nominal pipe |
| Bottom Stand | Available as a Weeders Digest specialty mounting option |
| Oscillating Attachment | Available for broader programmable circulation coverage |
| 120V Automatic Controls | C-10 thermostat and C-20 timer + thermostat |
| Recommended Cord Management | MagnaClips Magnetic Cord Management System |
| Optional Abrasion Protection | Protective Cord Wrap when cord fit is confirmed |
| Warranty | 3-year limited manufacturer warranty on current De-Icer motor units |
| Weeders Digest Support | Lifetime technical support |
FAQs
Dock De-Icer FAQs
How does a Dock De-Icer work?
The submerged propeller moves relatively warmer bottom water toward the surface. The warmer water and continuous circulation help prevent or reduce ice formation around the protected structure.
Does the De-Icer heat the water?
No. It is a water circulator rather than a heating element.
What horsepower options are available?
Current North American De-Icers are available in 1/2 HP, 3/4 HP, and 1 HP configurations.
How much thrust do the current models produce?
Current published specifications list 31 lb for the 1/2 HP 2400D, 37 lb for the 3/4 HP 3400 models, and 42 lb for the 1 HP 4400 models.
Which mounting option should I choose?
Use the included ropes for simple suspended installations. Choose a Universal Dock Mount when you want more precise depth and angle adjustment, an Industrial Mount for harsher environments, a Bottom Stand for suitable freestanding applications, or an Oscillating Attachment for broader coverage.
What does vertical suspension do?
Vertical suspension directs warmer water upward and typically creates a more circular open-water area.
What does angled suspension do?
Angling the motor creates a more directional flow that can target a dock section, shoreline, boat lift, slip, or other structure.
Can the De-Icer sit directly on the bottom?
No. Maintain adequate clearance beneath the motor so circulation is not restricted and sediment or debris is less likely to enter the propeller.
How deep does the De-Icer need to be?
Current North American model specifications list a 4-foot minimum water depth.
What should I do if my dock is in shallow water?
If deeper water is available nearby, the De-Icer can often be positioned in deeper water and angled toward the shallow dock area, provided the site and installation allow it.
When should I install my Dock De-Icer?
Install before significant ice forms whenever possible. Pre-freeze installation makes positioning, electrical setup, testing, and adjustment easier and safer.
What does the C-10 controller do?
The C-10 provides automatic temperature-based control for one compatible 120V De-Icer.
What does the C-20 controller do?
The C-20 combines temperature control with a 24-hour timer so a compatible 120V De-Icer can operate according to both weather and schedule.
Can I use a C-10 or C-20 on a 208–240V De-Icer?
No. C-10 and C-20 are intended for compatible 120V systems. Use the appropriate high-voltage control solution for 208–240V equipment.
What are MagnaClips?
MagnaClips are magnetic cord holders designed to organize waterfront power cords along compatible dock framing.
How many MagnaClips are included?
The current MagnaClip package includes 10 magnetic cord holders and ferritic steel mounting brackets.
What size cord fits inside MagnaClips?
Each MagnaClip accommodates cord up to approximately 1 inch in diameter. Multiple smaller cords can also share one holder when they fit properly.
How strong are MagnaClips?
The current specification lists approximately 20 lb of magnetic pull strength per holder.
Why can a MagnaClip release from the dock?
The magnetic connection is designed to hold during normal use but can separate from the mounting bracket under extreme cable tension, helping reduce excessive strain on the cord and connected equipment.
Can MagnaClips remain on the cord during storage?
Yes. Pull the magnetic holders away from the dock brackets and leave them positioned on the cord during seasonal storage. The brackets can remain installed at the dock.
What does Protective Cord Wrap do?
Protective Cord Wrap adds a braided outer layer around compatible power cable where additional resistance to abrasion from dock framing, rock, sand, or shoreline debris is desired.
Do I need to remove the plug to install Protective Cord Wrap?
No. The split-wrap design installs around an existing compatible cord without removing the factory plug.
Is Protective Cord Wrap specifically made for the Kasco De-Icer cord?
The current Weeders Digest Protective Cord Wrap product was originally sized and marketed for AquaThruster motor and oscillator cables. Confirm that the selected wrap fits your specific De-Icer cord diameter and desired length before ordering it for this application.
Can I use MagnaClips and Protective Cord Wrap together?
Yes, when the cord and wrap fit correctly. Protective Cord Wrap provides an outer protective layer while MagnaClips organize the cable route along compatible dock framing.
Can I use an extension cord?
Select the appropriate factory cord length rather than adding an extension cord to submerged electrical equipment.
Do I need GFCI protection?
Yes. Use the properly grounded and GFCI-protected electrical supply required for the installation.
Can I enter the water while the De-Icer is operating?
No. Never enter the water while the De-Icer or other waterfront electrical equipment is operating or connected to power.
Should I mark the open-water area?
Yes. Clearly identify open water and thin ice with appropriate signs, lights, barriers, fencing, or other precautions required for the location.
What is the warranty?
Current Kasco De-Icer motor units include a three-year limited manufacturer warranty.
Where can I get help choosing the motor, mount, controller, and accessories?
Contact Weeders Digest Product Support at 877-224-4899 with your dock dimensions, expected winter water depth, available voltage, location, and photos of the installation area.
Videos
Dock De-Icer Videos
Learn about motor sizing, mounting options, automatic controls, oscillating systems, boat-slip installations, and real-world Dock De-Icer setups.
Lake & Dock De-Icing Explained
Boat Slip De-Icer & Dock Bubbler
Dock, Pier & Boat Slip Mounting Options
Oscillating Mount for De-Icers
Dock De-Icer Controller Options
Dock De-Icer & Pond Bubbler
Videos
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Lake & Dock De-icing Explained | Mounting, Motors, Useful Tips
Shot on location at one of our Marina Customers explaining the...
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BOAT SLIP DEICER and DOCK BUBBLER to keep ice open with Scott The Deicer Guy
Dock Bubbler https://lakedeicer.com/?utm_source=video&utm_medi...
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options to DEICE a dock pier or boat slip with a kasco deicer with Scott The Deicer
www.LakeDeicer.com boat slip deicer 877-224-4899 DEicer video ...
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Oscillating Mount for Deicers | Keep more water open in winter | Kasco De-icers
Learn more at: https://www.lakedeicer.com/ or call 877-224-4899
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Marina DOCK / PIER DEICER w/ Kasco C10 C20 C25 by Scott the Deicer guy
https://www.lakedeicer.com/?utm_source=video&utm_medium=social...
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DOCK DEICER and POND BUBBLER with Scott The Deicer guy
http:://www.LakeDeicer.com 877-224-4899 dock or pier bubbler f...
2 Reviews
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Kassco 1 Hp
Excellent product, very powerful - awaiting winter ice but in the mean time excellent with weeds and muck!
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Review for my kasco deicer
The deicer works great for keeping the water open around my dock. Fast delivery and pleased with with the service i was provided with.
