DEXLIT ULTRA
DEXLIT ULTRA heated and cooled yacht decks
The world’s first fluid-cooled and heated yacht deck. Patent pending.
DEXLIT ULTRA combines RGBW lighting and interactive sensors with a fluid circuit built inside the deck modules. Cool the surface during hot conditions or warm it when the temperature drops, with separate zones controlled to suit the areas in use.
The lighting and temperature functions can operate independently. Every installation is sized around the vessel, deck area and available heating and cooling equipment.

Seasonal comfort
More comfortable deck use through the seasons
Deck surfaces can exceed 70°C (158°F) in direct sunlight, making barefoot use uncomfortable. In cooler conditions, a cold surface can also limit the time people want to spend outside.
ULTRA addresses both conditions through one fluid circuit. Its dielectric heat-transfer fluid passes through channels inside the modules, transferring heat to or from the surface through equipment selected for the installation.
The system is designed to support more comfortable deck use in summer and extend use into spring, fall and winter. Actual performance depends on the surface, conditions and thermal equipment.

Cooling
Deck cooling for exposed areas
In cooling mode, the system removes heat through the deck’s internal fluid channels. A mixing system allows individual zones to be controlled separately, so areas such as the bathing platform can be treated independently.
Cooling can be provided through an appropriate seawater heat exchanger or reversible marine chiller. Equipment selection depends on conditions, the deck area and the required performance.

Heating
Warmth for cooler mornings and evenings
The same circuit can warm the deck using a suitable heat source. Options include engine waste heat through a heat exchanger, a shore-power heating element or a diesel water heater.
Heating can be operated without switching on the deck lighting. Zone control allows the installation to serve selected areas rather than treating the entire deck as one setting.
Equipment
Thermal equipment specified for the vessel
ULTRA requires a thermal unit and fluid lines in addition to its deck modules and CUBE controls. Supporting equipment is housed away from the walking surface, leaving no visible equipment on deck.
A diesel water heater may be specified at around 5 kW (17,061 BTU/h). Compact cooling units can be approximately 4.7–7.9 kW (16,037–26,956 BTU/h) for smaller boats, while larger yacht chiller systems can provide approximately 10–35 kW (34,121–119,425 BTU/h) per unit.
These are equipment-capacity examples, not promises of electrical consumption. The final arrangement is sized to the project and can work with common marine equipment manufacturers.
- Diesel water heater
- Around 5 kW (17,061 BTU/h)
- Compact cooling units (smaller boats)
- Approx. 4.7–7.9 kW (16,037–26,956 BTU/h)
- Larger yacht chiller systems
- Approx. 10–35 kW (34,121–119,425 BTU/h) per unit
Equipment-capacity examples only.
Lighting and controls
The full PRO lighting system, with temperature control
ULTRA includes the RGBW lighting, scenes, animations and sensors available with DEXLIT PRO. Touch, vibration, music and motion responses can be incorporated alongside the heating and cooling functions.
Lighting is managed through the DEXLIT CUBE. Temperature can be controlled through the app or a supplied control panel, with separately controllable thermal zones planned for the installation.
Construction
Plan the construction from the start
ULTRA starts from 22 mm (0.87 in) and is typically 22–24 mm (0.87–0.94 in) including the surface. Approximate weight is 27–30 kg/m² (5.53–6.14 lb/ft²), so the added construction must be included in the vessel’s installation and refit assessment.
Space is required for the thermal unit, fluid lines and electrical connections. The deck substrate, thresholds, hatches and drainage are checked alongside the surface and light-pattern design.
| Specification | DEXLIT ULTRA |
|---|---|
| Lighting | Individually addressable digital RGBW LED groups, with dimmable color and white lighting |
| Effects | Dynamic scenes, animations and music response |
| Sensors | Capacitive touch, vibration, music and motion |
| Heating and cooling | One circuit containing dielectric heat-transfer fluid, with separately controllable zones |
| Build height | From 22 mm (0.87 in); typically 22–24 mm (0.87–0.94 in) including the surface |
| Approximate weight | 27–30 kg/m² (5.53–6.14 lb/ft²) |
| Electrical supply | Deck lighting: 5–48 V DC; higher voltages through a DC/DC converter. Thermal equipment has separate supply requirements |
| Protection | IP67 as standard, fully encapsulated. IP68 LEDs and connectors for special requirements |
| Lighting power | Approximately 12–40 W per meter (3.66–12.19 W per foot) of light line, depending on LED type. Thermal equipment requires additional power |
| Module size | Currently up to 1200 × 900 mm (47.24 × 35.43 in) |
| Controls | DEXLIT CUBE; iOS/Android app, Wi-Fi, Bluetooth, remote and control-panel options. Temperature control through the app or control panel |
Specifications depend on project design. Exact weight, power and thermal performance depend on area, pattern density and construction.
Larger modules up to 1500 × 2000 mm (59.06 × 78.74 in) are planned from 2027.