The Espar Airtronic D2 bunk heater is a technological miracle!

Operating over 20 hours on a single gallon of fuel and producing up to 7,500 btu of heat, the Espar Airtronic D2 eliminates the need of idling your truckengine for interior heat. Along with tremendous fuel savings accomplished by not idling the main truck engine, the use of an Espar also reduces engine wear associated with engine idling.

Operating through four automatic heat ranges via a wall mounted thermostat and a very intelligent ECU (electronic control unit) the Airtronic D2 will keep you warm and comfortable in the most severe winter conditions. The Espar D2 Airtronic is without a doubt, the most economical, quiet and comfortable way to heat your truck, boat or RV. Its compact size allows for easy and simple installation in the tool or luggage compartment in most sleeper bunks. Backed by a full 2 year/2000 hour warranty, you can rest assured knowing you have purchased a high quality, dependable product. For bigger walk-in sleepers, you may want to consider the Airtronic D4


Concerned about potential idling fines? In many of our states there is legislation forbidding the idling of truck engines. No worries with an Espar, ALL of the Espar Airtronic heaters and most of our Hydronic Coolant heaters are CARB approved and EPA verified. What does this mean to you? It means the Espar owner is in total compliance in regards to their idle-reduction equipment selection. Choosing an Espar Airtronic D2 is a very smart decision – for your comfort and finances!

Many of our customers tell us they have saved maintenance expenses as well as fuel by extending oil changes and increased the lifespan of components such as air compressors, alternators, belts, hoses, etc. by reducing engine idling with an Espar Heater.

Feel the Difference – choose Espar!

Featured Items

Coolant Pump - 12V

This coolant pump is used on 12 volt D9W and Hydronic 10 heaters.
Coolant Pump - 12V
$342.00MSRP Price: $426.27

Fault Code Retriever

Fault Code Retriever
$315.68MSRP Price: $394.60

Seal, Blower Motor B4

This gasket is used to seal the combustion blower motor to the heat exchanger...
Seal, Blower Motor B4

Overheat Sensor/Flame Sensor w/Tool

this overheat sensor/flame sensor monitors heater start up and temperature of...
Overheat Sensor/Flame Sensor w/Tool
$56.50MSRP Price: $70.60

Articles & Specifications

Preventative Maintenance

With some simple diagnosing and maintenance procedures, you can have your Espar Heater running like brand new!

It's never too early to think about preparing your Espar Heater for the up and coming heating season. Most heater issues are due to lack of some very simple preventative maintenance procedures.

Frequently Asked Questions

Have a question? If you can't find what you're looking for under the FAQ’s shown below, use the "Contact Us” link and select ‘Technical Enquiry, filling in required information and type in your question. experts are committed to responding promptly .

User Login

Remember me
Forgot Password?
Register Now


Heat Exchanger

MSRP Price: $38.95

Popular Parts Lookup

Popular Parts Lookup

Product Catalog

Join Our Mailing List