Dock Deicer | Kasco Marine De-Icers

It depends on the site and the shape of the open-water area you need. Included mooring ropes work well for many installations and allow either vertical or angled suspension. A rigid Universal or Industrial Mount gives greater control over depth and direction, especially where waves, tides, or currents make rope positioning less stable.

Vertical suspension directs warmer bottom water upward and generally creates a more circular opening centered around the De-Icer.

Angling the De-Icer produces a more directional or elongated area of water movement. It is useful when you need to push warmer water toward a dock, shoreline, boat lift, or shallow area.

Kasco recommends rigid dock mounting when more stable and adjustable positioning is needed, including locations with more wave, tide, or current activity. The Universal Mount lets you change depth and angle, and the Simple Swivel version makes directional adjustment easier.

The Industrial Mount is the heavier-duty rigid mounting option and is suggested for harsher environments. It uses a larger 1.5-inch nominal customer-supplied pipe.

The patented Simple Swivel bracket is available with both Universal and Industrial Mount systems. It allows the mounted De-Icer to rotate so water flow can be redirected more easily.

Yes, where the structure is compatible. Kasco offers U-Bolt Kit 997108K for drill-free attachment of the mount base to a piling. The Universal Mount uses one kit and the Industrial Mount uses two.

Kasco's De-Icer FAQ identifies a Horizontal Float as an option for calmer water where a fixed structure is not available for ropes or a dock mount. Because Kasco's current 2026 De-Icer accessory lineup primarily lists rope, Universal and Industrial mounting, confirm compatibility with Weeders Digest before ordering a float for a De-Icer.

No. Kasco specifically advises against placing the De-Icer itself directly on the bottom. Too little bottom clearance can reduce effective surface circulation and increase the chance of drawing debris into the unit.

Yes, for appropriate site-specific installations. The stand is intended to position the De-Icer when a dock or suspension point is unavailable, but the motor still needs adequate elevation above the bottom. Do not treat the Bottom Stand as permission to operate the motor directly on the lakebed.

Shallow-water performance depends on the installation. Kasco's FAQ notes that depths below approximately 3–5 feet can make long-term de-icing more difficult because less warm bottom water is available. Current De-Icer model specifications list a 4-foot minimum depth.

Kasco's FAQ says that if normal positioning would place the unit on the bottom, raise it so it remains at least approximately 1 foot above the pond or lake floor.

If deeper water is accessible nearby, place the De-Icer in the deeper area and angle the water flow toward the shallower dock or shoreline. This allows the unit to access a larger supply of warmer bottom water.

Kasco recommends installing in late fall before ice forms. A De-Icer can be installed later, but working around existing ice makes installation more difficult and potentially more hazardous.

No. It is a water circulator. It moves naturally warmer bottom water toward the surface and uses water movement to help prevent or reduce ice formation.

The C-10 is a thermostat-only controller for one compatible 120V Kasco De-Icer. It turns the De-Icer on as ambient air temperature falls to the selected setting.

Kasco's current C-10 manual recommends approximately 30°F as a practical starting activation temperature. Monitor actual ice conditions and adjust as necessary.

The C-10 has an approximately 0°F to 80°F adjustable range.

The C-20 combines a thermostat with a 24-hour timer. In normal automatic operation, the De-Icer operates when the programmed timer period and the thermostat condition are both active.

The C-20 operates over an approximately 0°F to 40°F thermostat range.

The timer uses 15-minute trippers, but Kasco recommends grouping at least four together for a minimum one-hour operating period. Longer cycles generally establish more useful water circulation than frequent short cycles.

Choose C-10 when you want simple temperature-only automatic control. Choose C-20 when you want to control both temperature and the times of day when a compatible 120V De-Icer can operate.

Do not use the 120V C-10 or C-20 with a high-voltage HD De-Icer. Kasco's current control-panel lineup identifies the C-220 as a compatible timer-based control option for 208–240V 3/4 and 1 HP De-Icers. Confirm the exact electrical configuration before ordering.

No. Each C-10 or C-20 is intended to control one compatible Kasco De-Icer.

No. Kasco advises against adding extension cords. Choose a De-Icer with the proper factory power-cord length for the installation.

Yes. Use the properly grounded and GFCI-protected electrical circuit required for your De-Icer installation.

No. Never enter the water while the De-Icer or other electrical equipment is operating or connected to power.

Yes. Kasco recommends taking precautions around all open-water de-icing areas, including Thin Ice or Open Water signs, lighting, fencing, barriers, or other safety measures required for the location.

No. Moving ice driven by wind or current, extreme cold, ice freezing to the bottom, very shallow water, changing water levels, and other conditions can limit any De-Icer's ability to protect a structure.

Current Kasco De-Icer units include a three-year limited manufacturer warranty. C-10 and C-20 controls have separate two-year limited warranties.

Call Weeders Digest Product Support at 877-224-4899. Have your dock dimensions, winter water depth, location, available voltage, and photos ready so the complete De-Icer system can be sized together.