Espar Airtronic M3 D4R Diesel 12V Marine Heater 3 Outlet Kit with EasyStart Pro Controller

In Stock (2 reviews)
£2,792.15
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Products include manufacturer-backed warranty coverage. Terms vary by product and brand. View Warranty Details

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Core Features & Benefits

  • Marine exhaust with insulation and silencer included
  • Improved noise reduction with Airtronic's latest generation
  • Approx. 9 meter / 30 ft. of hot air ducting with 3 outlets included
  • Complete boat installation kit, easily customizable to meet specific boat build
  • Digital controller with integrated thermostat

Enhanced Heating Efficiency With Espar AM3 D4R Airtronic 12V Marine Kit

Get superior boat heating with the Espar AM3 D4R Marine Kit. This Airtronic marine kit comes with a 3 outlet hot air ducting system, capable of heating three separate cabins.
This 12V boat diesel heater is suitable for a 26-32 ft motor yacht or 32-39 ft sailing yacht. With a few extra accessories, outlet numbers or types/colors can be reduced or increased. Use duct wrap insulation to reduce heat loss when routing your ducting system.

EBERSPÄCHER AIRTRONIC – SELECTION GUIDE

Brushless Motor for Extended Turbine Life

The brushless motor in the Espar AM3 D4R Marine Kit ensures a longer service life of the turbine, providing durability and reliable performance. Due to its innovative design, the brushless motor is quiet, and maximizes the heating system's efficiency.
This is a recreational version of a regular D4L commercial boat heater, designed to operate with longer ducting systems than the commercial version. The D4R is designed for use with RVs, boats, yachts, and other marine applications.

Advanced Exhaust System and Integrated Silencer

One of the key components of this heater kit is the exhaust system, which is designed to meet the highest standards of comfort and safety. An adhesive aluminum sheet collects hot water excess from the exhaust drain pipe.
Integrated silencer reduces noise and improves comfort in combination with air intake silencer. If the installation instructions are followed, this boat heater will function flawlessly.

EasyStart Pro Controller for Precise Temperature Control

EasyStart Pro Controller, allows you to control and schedule the heater's run-time down to the minute.
The integrated thermostat allows accurate temperature control, therefore it is important to choose the controller's installation location carefully.

Comprehensive Marine Kit for Easy Installation

It's easy to customize the installation process with the Espar AM3 D4R Marine Kit, which includes all the necessary components. Check the “Kit-Include” tab for a complete list of items included in this boat kit, that you can customize to meet your needs.
You can do that by decreasing or increasing outlet numbers, customizing length, the diameter of the ducting system, color, or type of the outlets, making it quieter or even more efficient with duct wrap insulation. Get in touch with us for assistance if needed.

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Part numbers:

  • Installation kit: 252720800000 + Marine kit accessories 
  • Heater only: 252957050000
  • Alternative formats: 25.2957.05.0000; 25.2957.05.00.00; 25 2957 05 0000; 25 2957 05 00 00

Kit Includes

  • Airtronic D4R 12V heater unit.  3rd generation AM3 Airtronic
  • EasyStart Pro Timer (with integrated temperature sensor)
  • 6m / 19.7ft of ducting (90mm diameter)
  • 3m / 9.84ft of ducting (75mm diameter)
  • Y-branch (90mm) x 2 + reducers 90 to 75mm  x 2
  • Reducers for 75mm ducting
  • 90mm outlet with fitting x 1 
  • 75mm outlet with fitting x 2
  • Fuel Metering Pump with marine grade fuel line
  • Wiring harness
  • Stainless steel exhaust hull skin fitting (ID 30mm)
  • 30mm ID Exhaust hose with silencer / muffler and marine grade insulation + hard cover on top 2 m / 6.56 ft
  • Exhaust adapter (24-30mm) with water with drain coil 
  • Stainless steel heater mounting bracket - L shape
  • Combustion air silencer / muffler
  • Fuel Standpipe (600mm)
  • Screws, clips, clamps and other fixings required for

Browse Eberspächer/Espar Manuals & Technical Documentation

Reviews

5

Write a Review
  • Eberspacher furnace

    Excellent seller everything needed was included in this kit I would buy from again.

    Posted by Daniel Q. on 3rd Jan 2019

  • Good kit but includes a lot of unused parts

    While all necessary parts are there the kit includes redundant parts for other applications. Fuel lines (2) and parts, as well as exhaust and combustion air parts that are not used in a marine installation could be excluded, possibly reducing the overall price. Some other ducting parts, elbows and couplers I needed, had to be located through other dealers. The design of the heater itself might be better if the combustion air and exhaust were such that when the unit is placed for the air duct facing forward, towards the cabin of a boat, the exhaust didn't need a 180° turn towards the stern. Be aware the exhaust through hull is designed for a near vertical transom and one that angles back, or is reversed may need to be given a tapered mounting surface.

    Posted by Nicola K. on 14th Dec 2017