Core Features & Benefits
- Complete marine exhaust system with integrated silencer
- An impressive 20472 BTU heat output
- Customizable marine installation with several options
- Digital controller with integrated thermostat
Effortless Marine Heating with Espar Airtronic L3 D6L Marine Heater Kit
This Espar Airtronic D6L 12v marine heater kit comes with everything you need for a completely new installation or as a changeover kit to upgrade your older Airtronic heater.
Espar D6L heater kit has a 90mm hot air outlet, therefore it can be used to replace any previous heater version with an existing 90mm system in your boat. A few examples of this would be D4 / D4L / D4R / D5 / D4L, D5LC / D7, or D8LC models.
Powerful Marine Diesel Heater Kit for Boats
Espar AL3 D6L Airtronic Marine Heater Kit delivers powerful, efficient heating for 26-32 ft motor yachts or 32-39 ft sailing yachts.
Installation kit without hot air tubing allows selection of desired outlet numbers. Additionally, different hot air tubing options are available. Moreover, a marine-grade fuel line and exhaust system with a silencer are included, as well as a digital controller with an integrated thermostat.
Customizable Installation Options
Depending on your installation requirements, you can choose from one of the available options. A basic kit includes all the mandatory and required components for a basic changeover if you're just replacing a heater.
For new installations, consider either 2 or 3 outlet systems. 2 outlet system is a 90mm outlet system with two outlets measuring 6 meters in length. The 3 outlet system has approximately 9 meters of ducting, 1 main 90mm outlet, and 2 closeable 75mm outlets. Contact us for custom solutions or choose one of the available options.
EasyStart Pro Controller for Precise Temperature Control
Control and schedule the heater's run-time down to the minute with EasyStart Pro controller. Furthermore, the controller includes an integrated thermostat for accurate temperature control.
The controller's installation location must be carefully chosen. Use our recommended extension for EasyStart Pro controllers, to have flexibility in installation.
Tailored intake and exhaust system
Among the key components of this 12v marine heater is the exhaust system, which meets the highest safety and comfort standards.
Integrated silencer reduces noise and in combination with air intake silencer, improves comfort. Following the installation guide will ensure that the heater works flawlessly. In addition, an adhesive aluminum sheet is added to catch hot water excess from the exhaust drain pipe.
Technical Specifications:
- Voltage: 12V
- Fuel: Diesel
- Heat Output: 20,500 BTU (6 kW)
- Max. Altitude: 18,000 ft (5,500 m)
- Fuel Consumption: 0.042- 0.195 gal/h (0.16 - 0.74 l/h)
- Power consumption: 7 - 90W
- Warranty: 2 years
Part numbers:
- Installation kit: 252720800000 + Marine kit accessories
- Heater only: 252959050000
- Alternative formats: 25.2959.05.0000; 25.2959.05.00.00; 25 2959 05 0000; 25 2959 05 00 00
Browse Eberspächer/Espar Manuals & Technical Documentation
Kit Includes:
- Espar Airtronic AL3 D6L Diesel 12V heater
- Fuel metering pump (12v)
- EasyStart Pro Controller
- Additionally included: Pro controller extension included 9.8 ft/ 3m
- Marine Grade Fuel lien - ISO7840 - 19.7 ft / 6 m
- Fuel tank standpipe
- Air Intake Silencer / Muffler
- Electrical harnesses - Plug n' Play
- Marine Grade exhaust system with silencer - approx. 6.6 ft / 2m !
- L-shaped exhaust adapter with drain for condensation drip
- Aluminum sheet for floor protection
- Hull skin fitting
- Combustion intake pipe ~3.3ft / 1 meter
- Inlet / Outlet grills
- Additionally included: L-shaped marine grade mounting bracket
- Air outlet grill (90 mm. diameter)
- Screws, clips, and plastic straps required for installation
- Installation manual CD (Scan QR code for installation manual download)
2 outlet options will have additionally:
- 2 meters of 75mm hot air tubing
- 3 meters of 90mm hot air tubing
- 1 x 90mm "Y" tube branch connection
- 1 x 75mm to 90mm hot air tube reducer
- 1 x 75mm hor air outlet
- 1 x 90mm hot air outlet
3 outlet options will have additionally:
- 4 meters of 75mm hot air tubing
- 3 meters of 90mm hot air tubing
- 2 x 90mm "Y" tube branch connection
- 2 x 75mm to 90mm hot air tube reducer
- 2 x 75mm hor air outlet
- 1 x 90mm hot air outlet
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Espar Airtronic L3 D6L Diesel 12V Heater Marine Kit with EasyStart Pro Controller
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