SKU: 17627862880

Espar Airtronic M3 B4L Gasoline Heater

Sale price$1256.85 Regular price$1396.50
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  • CAN

Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

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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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4.7 ★★★★★
Based on 18 reviews
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Nathaniel
Grantham, US
★★★★★ 5
Stylish comfort you can wear all day!
Size: 6.5, Color: Chestnut
My wife has been been wearing the UGG Goldenstar Sandals for a few weeks now, and they’ve totally exceeded expectations. These sandals strike the perfect balance between comfort and style, and she’s gotten so many compliments on them! Pros: • Super Comfortable: The cushioned footbed feels like walking on clouds. Perfect for long days on your feet or casual outings. • Lightweight: Unlike some chunky sandals, these are surprisingly light but still feel supportive and well-made. • Adjustable Straps: The Velcro straps make it easy to get the perfect fit, and they’re great for swelling feet after a long day. • Versatile Style: They look great with everything—from jeans and shorts to casual dresses. • High-Quality Materials: Typical UGG quality—durable suede and solid construction. Cons: • Suede Requires Care: The upper is suede, so they’re not ideal for wet conditions and do need a bit of maintenance to keep looking fresh. • Pricey: They’re on the higher end cost-wise, but I’d say the comfort and quality justify the price. I’m really happy with these sandals. They’re a perfect mix of fashion and function, and I’d definitely buy them again in another color!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2025
W
Verified Purchase
WHoward
Fort Morgan, US
★★★★★ 5
Best Sandal Ever
There is nothing about these that I don't LOVE. These are so comfortable and look so good. I have 6 pairs in every color. They r my absolute favorite. Run true to size. Listen to Amazon about sizing. They know... I am between size 7 and 7.5 and they recommended 7 and it was a perfect fit. I have not had any issues with the Velcro closure. Amazon has the best prices for UGGS.
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Reviewed in the United States on October 11, 2025
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Verified Purchase
dawn
Whiting, US
★★★★★ 5
Sandals that go with just about everything.
As a lover of everything Ugg, these didn't disappoint. They are some of the most comfortable shoes I have, very lightweight, and go with just about everything. They remind me of the old school Dr. Martens and I had a massive collection of those in high school. I have worn them quite a bit and you can barely tell as they are holding up extremely well.
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Reviewed in the United States on February 15, 2026
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Verified Purchase
Stephen love
Birmingham, US
★★★★★ 5
Comfort
Love! Excellent quality and sooooo comfy! Love
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Reviewed in the United States on March 17, 2026
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Verified Purchase
KaDi
Carnegie, US
★★★★★ 4
Cute and comfortable!
Size: 6.5, Color: Chestnut
These are cute and surprisingly comfortable! My arches feel supported and the soles don’t feel as block-like as other platform style sandals! Things to note: The footbed liner is not made of suede and is a little slippery. It’s like a neoprene liner which was unexpected for an Ugg shoe. Also, I only intend to wear these sandals as slides (a la Birkenstocks) so the “adjustable” Velcro strap over the top part of the foot seems useless. It doesn’t snug the top down at all, functionally speaking it is only to wear around the back of the ankle. Maybe this matters to someone thinking they could tighten the top down a bit. The ankle strap is comfortable but could be a bit longer. Overall they are a cute option to the platform Birks that are very uncomfortable imo. Love the options to order half sizes. I’m usually a 6 in Ugg boots but ordered my regular shoe size 6.5 and they fit well. My heel would be at the very end of my sandal if I sized down. True to size. Keeping and will order in another color!
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Reviewed in the United States on May 28, 2025

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