Espar Airtronic AM2 D4R Diesel 12V Heater Kit with EasyStart Pro Controller

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Products include manufacturer-backed warranty coverage. Terms vary by product and brand. View Warranty Details

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Eligible unused items in their original packaging may be returned within 14 days of delivery. Terms and fees may apply. View Return Policy

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Core Features & Benefits

  • Get the most fuel-efficient diesel heater on the market and save on fuel costs.
  • Achieve uniform heating in your vehicle or boat with extended ducting.
  • Stay warm and relaxed even at high altitudes and in freezing temperatures.
  • Effortless installation and operation, reducing hassle and saving time.

Introducing Espar Efficient and Powerful D4R Recreational Air Heater Kit

Experience reliable and powerful heating with the D4R Recreational Espar Heater Kit. With outstanding heat output of up to 4kW / 13650 BTU and exceptional fuel economy, it is ideal for RVs, trucks, and boats. Enjoy consistent heating even in extreme conditions with high altitude performance and cold weather reliability.

Features of D4R Recreational Espar Diesel Heater Kit

  • Efficient heating output of up to 4kW / 13650 BTU with exceptional fuel economy.
  • Unique fan style propels air further through ducting, handling up to 70ft / 21m and multiple outlets.
  • A perfect fit for high altitudes and cold temperatures without additional wiring or installation.
  • User-friendly operation with EasyStart Pro controller, thermostatic function, timer, and integrated temperature sensor.

Fuel-Efficient Heating for Various Types of Vehicles

The Espar D4R Recreational heater kit is a durable and fuel-efficient heating solution designed for RVs, trucks, semi-trucks, lorries, vans, caravans, horse boxes, mobile workshops, and boats. With an impressive heat output of up to 4kW / 13650 BTU, it offers the best fuel economy among Espar diesel heaters.

Extended Ducting Reach With Unique Fan Design

One of the standout features of the Espar D4R is its unique fan shape, which enables it to propel air further through the ducting system in comparison to other models. This allows it to handle up to 70ft / 21m of ducting and multiple ducting outlets, enabling efficient heating throughout your vehicle.

High Altitude Performance and Cold Weather Reliability

Equipped with the EasyStart Pro controller, the Espar D4R can operate at high altitudes of up to 9,900 feet / 3,000m without the need for additional wiring or installation. In addition, this diesel heater is designed to withstand extremely low temperatures as low as -46°C / -50°F, ensuring reliable heating when you need it most.

Convenient Operation and Hassle-Free Installation

Controlling and operating the Espar D4R is made easy with the user-friendly EasyStart Pro, featuring thermostatic functionality, a timer, and an integrated temperature sensor. With plug-and-play installation, fewer tools required, and simplified fuel system installation, the Espar D4R offers a hassle-free setup.

Technical Specifications

  • Part number (Heater): 25.2746.05.0000/ 25.2746.05.00.00/ 252746050000
  • Part number (Installation kit): 25 2720 80 0000 / 25 2720 80 00 00 / 252720800000
  • Fuel: Diesel
  • Voltage: 12V
  • Heat Flow: 3070 - 13650 BTU (900 - 4000W)
  • Fuel Consumption: 0.03 - 0.135 gal/h (0.11 - 0.51 l/h)
  • Average Power consumption: 6 - 65W
  • Average Power Consumption while Starting: ≤100W
  • Dimensions L x W x H: 14.6 x 5.5 x 5.9 in (371 x 140 x 150 mm)
  • Weight: 9.9lb (4.5 kg)
  • Heater model: Airtronic M2
  • Power output: 4kW

Included in the Kit

  • Espar / Eberspacher Airtronic D4R 12v Heater
  • EasyStart Pro Controller
  • Fuel pump (12v)
  • Fuel hose
  • Exhaust Silencer
  • Electrical harnesses
  • Stainless steel exhaust pipe
  • Combustion intake pipe
  • Flexible ducting - 1 meter
  • Inlet / Outlet grills
  • Air outlet (90mm)
  • Screws, clips and plastic straps required for installation
  • Installation manual

Reviews

5

Write a Review
  • One of best customer service

    I love this heater! At very first I was not entirely sure which heater to get and that is where great folk at Heatso came in help. After a lot of chatting (I was very nit-picking, tbh) they recommended this model and thoroughly explained why. So, I bought it.. Got it super quick! I think it took like 3 to be delivered. Installed it and now I am enjoying amazing comfort this heater provides. Highly recommended! If in any doubt, just ask Heatso folk. They really do care about their customers and helps you through everything.

    Posted by Chester on 9th Sep 2024

  • Upgrade

    I upgraded my Airtronic 4 with this. Bit annoyed that I had to change the whole electrical wiring part, but worth ti at the end.

    Posted by D WELLS on 10th Jun 2020