The Espar AS3 B2L 12V Heater- Full Kit (Gasoline) is the classic way to heat the interior of your van using fuel from your main diesel tank. This kit includes everything you need to install the Espar in your Sprinter van and will operate effectively up to ~ 13,120 ft. in elevation with the included altitude sensor.

Not all Espar kits are built the same. These units are genuine Eberspacher heaters with high-quality wiring harnesses from Eberspacher.

Key Features: Espar AS3 B2L 12V Heater- Full Kit (Gasoline)

• Fits universally where space allows
• Espar Full Kits are designed for 2007+ Mercedes Sprinters, 2014+ Ram ProMaster, and 2015+ Ford Transit vans(read more below)
• Efficient cabin heating on gasoline builds — no diesel tank required
• Low electrical draw (6–26 W) protects your house batteries off-grid
• Automatic altitude capability up to 13,120 ft (4,000 m) for mountain trips
• Compact body for flexible placement in van conversions and campers

Package contents:
- Espar AS3 B2L 12V Heater (Gasoline)
- INSTALL KIT - AIRTRONIC S3 B2L 12V
- CONTROL KIT - EASY START PRO CONTROLLER WITH ADAPTOR
- EXHAUST MUFFLER 24MM
- 26-28mm MUFFLER CLAMP (2x)
- FUEL LINE ADAPTER 7.5MM - 3.5MM
- GAS FUEL PICKUP(standpipe)

Mercedes Sprinter vans: This kit comes with a fuel stand pipe(fuel pickup), not the T-Piece kit that is commonly known to be used. The hoses included in this kit are designed to attach to the factory auxiliary port(with clamps) or you can source the Dorman Auxiliary Fuel connector adapter(Part# 800-188) separately if convenient to your install.

Ram ProMaster vans have an Auxiliary Fuel Port under the cab floor entry. The hoses included in this kit are designed to attach to the factory port(with clamps) or you can source the Auxiliary Fuel connector adapter separately if convenient to your install.

Ford Transit vans will require dropping the fuel tank on the vehicle, adding an additional fuel pickup pipe and components. Transit Kit variant coming soon!

Muffler Installation: The included muffler does not display which direction air flows. Espar confirmed it can be mounted in either direction, just be sure to follow installation guidelines for proper undercarriage mounting. 

Recommended to add insulation wrap to exterior fuel lines/connections to prevent cracking.

Documents: Espar AS3 B2L 12V Heater- Full Kit (Gasoline)

Espar Camper Van Fuel Installation Guide

Espar AS3 B2L/D2L Install Instructions

Espar AS3 B2L/D2L Operating Instructions (English, pg 30)

Espar AS3 B2L/D2L Technical Sheet

Espar AS3 B2L/D2L Troubleshooting Guide

Espar AS3 B2L/D2L Spare Parts List

Espar AS3 B2L/D2L Repair Instructions

Easy Start Pro Controller Documents

Espar Easy Start Pro Controller Guide

Espar Easy Start Pro Controller Guide Additional Info

Espar Easy Start Pro - Additional Product Info

Espar Easy Start Pro Wiring Diagram

Specifications: Espar AS3 B2L 12V Heater- Full Kit (Gasoline)

Video: Espar Airtronic AS3-B2L Air Heater with Standard Install Kit (Gasoline)