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Espar / Eberspacher Airtronic D2 12v (2.2kW) Heater Kit

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  • Espar / Eberspacher EasyStart Select Controller - Image 01
  • Espar / Eberspacher EasyStart Timer For Airtronic and Hydronic Heaters 221000341500

The Espar Airtronic D2 Air Heater Kit

Ideal for travelling and camping in high altitudes, this 12V Espar airtronic D2 diesel heater is a powerful and economical heater suitable for a wide range of campervans, caravans, vans and trucks. It can operate at up to 2,200 meters / 7200 feet feet and offers 4 heat output levels, plus an air ventilation mode. Its flexible ducting makes it easy to heat all areas of your vehicle. Espar heaters are among the most popular in the market, and the easy availability of parts and repair shops means installation and maintenance are no hassle at all.

Key features of the Espar D2 Heater Kit 

  • The Espar D2 is a 12V diesel powered heater that operates as a forced air heater.

  • It offers a 2.2kW / 7500BTU heat output and has 4 different heating levels - low, medium, high, and power (boost) - so it is easy to achieve the heat level you want.

  • The Espar D2 diesel heater also has an air ventilation mode for circulating cold air through the ducting system, perfect for cooling your cabin or living area on warm nights.

  • It uses an integrated internal temperature sensor for temperature monitoring. An additional external temperature sensor is available and recommended, as this can be placed in locations like your sleeping area and provides higher accuracy and comfort level.

  • The Espar D2 Heater Kit is simple to install and maintain, and comes with all the necessary parts for installation (see full contents of the kit below).

  • It is also compact, which means it can be installed under the passenger seat, in small compartments within your van or trailer, or externally (external mounting requires additional accessories - our customer support team can help you find these).

  • The Espar D2 Heater Kit can operate in altitudes of up to 2,200 meters / 7200 feet, and can be used at even higher altitudes with an additional High Altitude Kit. 

  • The Espar D2 uses CAN, LIN and S+ system communication protocols which means it is compatible with early generation controllers. So you can use the controller from your previous models of heater with your new Espar D2.

User benefits of the Espar D2 Heater Kit 

The Espar D2 diesel heater is the most reliable and powerful 2kW heater on the market. Diesel powered with a 2.2kW / 7500BTU heat output, it is easy to install and even easier to maintain. What’s more, it is compact, meaning it can be installed under the passenger seat, small compartments or externally (external mounting accessories are required). And beyond convenience, there’s the accuracy of temperature control that you associate with Espar diesel heaters. And for extra accuracy, you can purchase an external temperature unit for your Espar D2 heater that can override the internally mounted temperature sensor to provide you the highest level of temperature control. There are 4 heating levels – low, medium, high, power, and an air ventilation mode to help you cool down your vehicle or living space. The unit also comes with enhanced on screen diagnostics, making it easier for you to catch any issues as they appear. 

What really sets the Espar D2 Heater kit apart from other economical heaters is its ability to be used at high altitudes. Espar’s unique altitude adjustment feature means that it can work at 2200 meters, around 700 meters higher than its competitors, and if you want to use your Espar D2 even higher than that, you can purchase the special High Altitude kit.  And if you are the kind of person who likes to have the ability to finetune your heater kit, you’ll find that the Espar D2 Heater is customisable. As it uses LIN, CAN and S+ technologies, it gives you greater freedom for custom control builds. 

Who the Espar D2 is suitable for

The Espar D2 Heater is the perfect fit, whatever your vehicle. You can use it to efficiently and economically heat your:

  • Truck

  • Van (Sprinter, Promaster, Explorer, Vario, Crafter, Movano, VW BUS)

  • Campervan

  • Caravan

  • Military / Army / Defense / Emergency vehicles

  • Horse box

  • Mobile Workshop

  • Boat (requires marine kit). There is an option to add a marine kit to your order - click here

Heatso’s engineers are here to help

The Espar D2 is an excellent heating option for your vehicle. But if you have any questions about it, or would like to hear about other options, our customer service is onhand to help. And when you do find the ideal solution to meet your needs, our engineers are available to talk you through the whole installation process, step by step.

Technical Data:



Diesel – EN 590

Heat Flow Control







Heat Flow














Fuel Consumption

l / h







gal/ h






Average Power consumption







Average Power Consumption while Starting



Rate Voltage


12 volts

Dimensions LxWxH



Espar / Eberspacher Part Number: 

252675050000 / 25.2675.05.0000 / 25.2675.05.00.00 / 25.2069.05.0000.0Z

25 2675 05 0000 / 25 2675 05 00 00 / 25 2069.05.0000.0Z  

Kit Contents:

  • Espar / Eberspacher airtronic D2 heater

  • Fuel pump (12v)

  • Fuel hose

  • Fuel T piece kit

  • Controller of your choice

  • Exhaust Silencer / Muffler

  • Electrical harnesses

  • Stainless steel exhaust pipe - approx. 90cm

  • Combustion intake pipe 

  • Flexible ducting (60 mm. diameter)

  • Inlet / Outlet grills

  • Air outlet grill (60 mm. diameter)

  • Screws, clips and plastic straps required for installation

  • Installation manual CD

  • Warranty documentation

Shipping Times:

  • United States - 1 Working Day

  • United Kingdom - 1 Working Day

  • Western Europe - 2-3 Working Days

  • Eastern Europe - 3-5 Working Days

  • Scandinavian Countries - 2-3 Working Days

  • Australia / New Zealand - 2-3 Working Days

  • Rest of World - 2-4 Working Days

Please note - New Version D2L S2 is now available! Click here to see.


Installation, servicing and maintenance must be done in accordance with manufacturer’s guidelines. Failure to follow these guidelines will result in voiding your warranty. 

We provide free technical and installation support via email or phone to all of our customers who purchase a heater, heater kit or other products from Heatso. We take pride in our customer service and want to ensure that your heater system is properly installed. As a result, if you have any difficulties, please do not hesitate to contact us at [email protected].

If you require removing and/or refitting your item, please visit a local professional or authorised specialist, if you can not find one you can contact us and we will try to recommend a local partner to assist with the task. The cost of removing and/or refitting this item is not covered by the warranty.

Standard/Premium Warranty Terms for Espar/Eberspacher or Webasto Heaters & Heater kits

2 Years + optional 1 year extended Warranty available

If the item has failed within warrantable conditions:

  1. Please fill out the contact form on the “Contact us” page.
  2. A representative will contact you within 24 business hours to confirm the details and assist you further.
  3. If the product needs to be inspected by our service engineer, we will provide shipping labels for you to print and attach before handing over to our courier for collection.
  4. The shipping label will contain instructions for arranging pickup at your location or drop off at a nearby FedEx location. Follow these instructions to pass the package to FedEx.
    1. *The Label must be attached to the packages before leaving the package with FedEx.
    2. *You can also choose to drop off the item at a FedEx post office instead of requesting a courier collection.
    3. *If after inspection it appears that the item is not warrantable and the malfunction is caused by a non-warrantable condition, we will kindly ask you to cover shipping expenses at a discounted flat rate.
  5. On average, diagnostics of heaters and their parts takes 3 to 4 working days from the moment the item has reached our warehouse.
    1. *The diagnostics report is provided by a manufacturer approved authorised service centre.
  6. If during diagnostics it was concluded that the fault falls under non-warrantable conditions, our customer support will reach out to you and provide you with an estimated repair cost.
    1. *Please note that we strive to provide the lowest possible repair prices.
  7. Under normal circumstances it can take 3-7 working days after diagnostics to repair most minor malfunctions.
    1. *Please note that each case is unique and your repairs may take longer depending on the fault.


*Please note that all deadlines above are approximate and everything depends on the specific details of each case.

**If your item has been installed by a third party, please save all the documentation.This documentation can help find and fix the fault faster.

28 Reviews Hide Reviews Show Reviews

  • 4
    ottimo negozio on line

    Posted by Danilo on 4th Oct 2015

    Buon prezzo, consegna veloce, relativamente facile l'installazione. Grazie Heatso.

  • 4
    A little more information

    Posted by ian charlesworth on 5th Aug 2015

    Excellent product although a little more information regarding the fitting applications for the basic kit would have been usefull.

  • 5
    Great Product, Good Price, Quick Delivery

    Posted by Nick Jones on 5th Jun 2015

    This is a great heater, was relatively easy to install although I have to say the manufacturer instructions could be a little better. It arrived very promptly in great condition. Thanks

  • 5
    Great unit

    Posted by Doug, Melbourne ,Australia. on 22nd May 2015

    Good and fast delivery. Easy to fit. very efficient.

  • 3
    Fast Shipping to CA!

    Posted by cold when not in San Diego on 18th Mar 2015

    Haven't installed yet so can not give product itself a rating (therefore 3 stars), but I am definitely impressed with how quickly we received the product, esp. since we are in California and product was shipped from UK?!

  • 5
    Bare i orden!

    Posted by Søren Friborg Danmark on 28th Feb 2015

    Handlen forløb gnidningsfri. Varen blev leveret med UPS direkte til døren. Let og uden problemer.

  • 5
    Eberspacher Airtronic D2 12v (2.2kW) Heater Kit

    Posted by Maynard on 3rd Feb 2015

    Very good item. Easy to fit. quick expedition. Always somebody to answer you! Thanks!

  • 5

    Posted by Sam on 30th Jan 2015

    I had not heard of HeatSo before I ordered but I thikn everyone should know who they are. Fantastic service, quick delivery, great prodcuct

  • 5
    Eberspacher d2

    Posted by Steve on 16th Dec 2014

    First class product well packaged and delivered before time what else do you need!