SKU: 17627862880

Espar Airtronic M3 B4L Gasoline Heater

$1256.85 $1396.50
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  • USA
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Espar Airtronic M3 B4L Gasoline HeaterThe Airtronic B4 is a compact and economical air heater that offers optimized fuel efficiency, a range of operation modes and unsurpassed safety standards. Perfect for cargo heater or bunk heater applications. Output 3,800 W, for vans and suitably sized trucks; offers the advantage of high power within a reasonable installation space, wide range of applications. Espar Climate Control Systems Airtronic air heaters operate like forced air furnaces

The Airtronic B4 is a compact and economical air heater that offers optimized fuel efficiency, a range of operation modes and unsurpassed safety standards. Perfect for cargo heater or bunk heater applications.

  • Output 3,800 W, for vans and suitably sized trucks; offers the advantage of high power within a reasonable installation space, wide range of applications.

Espar Climate Control System’s Airtronic air heaters operate like forced air furnaces utilizing the vehicle’s own fuel and power supply to produce heat without idling the vehicle. Heaters operate quietly and cycle through four output levels to provide the optimum temperatures at all times.

Units are suitable for a variety of applications but are especially well suited for cab and sleeper heat in class 8 trucks, workshop vehicles, and freight compartments. Airtronic air heaters can also be easily combined with one of Espar’s specially designed controllers for maximum controls and heater function.

This Airtronic AM3-B4L also has altitude adjustment up to 5500m / 18000 ft. built-in. No more need for additional module.

BENEFITS:

  • NEW M SERIES B4L and D4L incorporates brushless motor has extended the service life to 5,000 hours. This new motor, a modern control system and the use of the latest metering pump technology and CAN bus technology.
  • Economical
  • Low fuel and power consumption
  • Integrated control unit
  • Easy to install and maintain
  • Built-in self-diagnostics
  • Highest heat output available in the market
  • Quick release cover for easy access to components for maintenance
  • EPA verified and CARB compliant for use anywhere in North America 
  • Has a warranty of 2 years for reliable, long-term performance

Click Here to Download the Airtronic Data Sheet
Click Here to Download the Control unit EasyStart Pro
Click Here to Download the EasyStart Pro Product Information
Click Here to Download the Airtronic Product Information
Click Here to Download Installation Manual
Note: Installation instructions begin on page 23.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17627862880

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4.8 ★★★★★
Based on 924 reviews
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Product Reviews
H
Verified Purchase
Heather Montgomery
Whiting, US
★★★★★ 5
Works as described
Color: Black
Love this whisk. I have arthritis and this is light weight enough for me to use. I love the push button, and the stand for it. It’s really easy to clean, and it blends my shakes nicely without leaving the powder behind.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
J
Verified Purchase
James
Massapequa, US
★★★★★ 5
Very Powerful Frother!!
Color: White
I’ve been using a frother daily for my drinks, and this one really impressed me with its power for such a compact size. It blends heavier powders into smooth, clump-free mixtures in seconds. I’m a big fan of the build—the metal whisk gives it a solid feel, and it comes with a stand to keep it neat on the counter instead of being shoved in a drawer. Cleaning is a breeze, just a quick rinse, and the rechargeable battery lasts much longer than I anticipated between charges. Just a little tip: start in a taller cup and don’t fill it all the way to the top, as this thing can create a serious vortex if you’re not careful. Overall, it’s been a super handy little tool, and I’m so glad I bought it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
J
Verified Purchase
JMB
San Leandro, US
★★★★★ 5
Mixes my protein shake powder
Color: Blue
My husband and I both drink protein shakes daily. We have vortex mixers that work great, but they are plastic and getting old, and really needed to be replaced. In an effort to reduce microplastics in our lives, I am trying to use less plastic mixing cups. I couldn't find anything small enough (other than regular blenders) with glass and metal parts that would work well for us. During my search on here, several frothers showed up. This one caught my eye because of the amount of sales, quick delivery, and of course, decent pricing. Some of the reviews had me a little skeptical, and time will tell regarding the longevity, but so far I am pleased. My protein powders are on the heavy side, but this little frother really gets the job done. Instead of having to use separate mixing cups (saving me on dishwashing), I just use my morning coffee cup (it's big enough) to mix my protein shake in. My husband just uses a regular glass. Neither of us can believe the power this little thing has. We are getting smooth shakes! Here is what I really like about it: It is powerful and mixes well; the frother is metal and not plastic; it cleans extremely easy; after making several shakes the battery has not died; can be used in glasses, coffee cups, even disposable cups (when we buy donut shop coffee); and I love the little stand which takes up barely any counter space. Less plastic, less clean-up, dependable (so far), and small, making it convenient even for travel. I'm really glad I got this, and hope it will last. One last thing, do not turn it on while cleaning under running water. (Yes, you can laugh.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
D
Verified Purchase
David A.
Battle Creek, US
★★★★★ 5
Powerful frother with a long rechargeable battery life
Color: Black
After purchasing three of the battery operated frothers. I finally found this amazing frother. It is very powerful so you do have to be careful not to slosh liquid out of your cup when you’re using it. But I have found it helps if you rotate the frother in a stirring motion while you are using it. That really helps keep the liquid from overflowing out of the cup. It has a sleek design and is rechargeable and the charge less about two weeks.I love this one so much. I take it with me when I travel. I actually left my original one at my mother’s house the last time I visited her and have ordered another one for my house. Highly recommend.
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Reviewed in the United States on May 27, 2026
M
Verified Purchase
MJFinds
Draper, US
★★★★★ 5
Great Power and Creamy Foam
Color: White
This frother is amazing and has really good power. It creates creamy, smooth foam in seconds and works perfectly for iced lattes, cappuccinos, and matcha. I love that it’s rechargeable and lightweight, but still feels strong and high quality. As someone who loves coffee, this has become one of my favorite tools for making café-style drinks at home. Easy to use, easy to clean, and looks beautiful on my coffee station.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026

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