Espar AS3 B2L 12V Heater Full Kit (Gasoline) - High-Altitude Cabin Heat

Espar AS3 B2L 12V Heater Full Kit (Gasoline) - High-Altitude Cabin Heat

At West Coast Vans, cold mornings are easier when the heater, fuel pickup, exhaust, altitude plan, and house battery all agree. The Espar AS3 B2L 12V Heater Full Kit (Gasoline) - High-Altitude Cabin Heat packages genuine Espar heat with the source-listed install hardware; Ask Us Product Questions Anytime before choosing the vehicle fuel connection.

WCV EXPERT TIP

Bench-test the heater and controller before final mounting, and keep combustion intake, exhaust, fuel lines, and cabin-air ducts completely separated.

PRODUCT OVERVIEW

Espar AS3 B2L 12V Heater Full Kit (Gasoline) - High-Altitude Cabin Heat is a 12V air-heater package for camper-van cabin heating using the source-listed vehicle fuel type.

The kit includes the heater, controller, installation hardware, exhaust components, and fuel-pickup parts described below, with chassis-specific fuel-system work still required.

BEST FOR

• FOUR-SEASON VAN BUILDS: Provides fuel-fired cabin heat with source-listed high-altitude capability.

• SPRINTER, TRANSIT, AND PROMASTER INSTALLS: Supports the chassis-specific fuel connection methods and cautions listed below.

• LOW-DRAW OFF-GRID HEATING: Designed to preserve house-battery capacity while delivering the listed heat output.

TECHNICAL SPECIFICATIONS

• VENDOR: Campervan HQ

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

• SOURCE SKUS: ESPR-AS3B2LFULLKIT

• ELECTRICAL SPECIFICATION: 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.

• INCLUDED COMPONENTS: 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.

• HEATER SYSTEM NOTE: Not all Espar kits are built the same.

• HEATER SYSTEM NOTE: These units are genuine Eberspacher heaters with high-quality wiring harnesses from Eberspacher.

• HEATER INSTALL NOTE: Key Features

• ELECTRICAL SPECIFICATION: Espar AS3 B2L 12V Heater- Full Kit (Gasoline)

• CERTIFICATION: Fits universally where space allows

• FITMENT OR USE: Espar Full Kits are designed for 2007+ Mercedes Sprinters, 2014+ Ram ProMaster, and 2015+

• FITMENT OR USE: Ford Transit vans

• HEATER INSTALL NOTE: ( read more below )

• REQUIREMENT: Efficient cabin heating on gasoline builds - no diesel tank required

• HEATER INSTALL NOTE: Low electrical draw (6-26 W) protects your house batteries off-grid

• DIMENSIONS: Automatic altitude capability up to 13,120 ft (4,000 m) for mountain trips

• DIMENSIONS: Compact body for flexible placement in van conversions and campers

• INCLUDED COMPONENTS: Package contents

• ELECTRICAL SPECIFICATION: Espar AS3 B2L 12V Heater (Gasoline)

• ELECTRICAL SPECIFICATION: INSTALL KIT - AIRTRONIC S3 B2L 12V

• HEATER INSTALL NOTE: CONTROL KIT - EASY START PRO CONTROLLER WITH ADAPTOR

• DIMENSIONS: EXHAUST MUFFLER 24MM

• DIMENSIONS: 26-28mm MUFFLER CLAMP (2x)

• DIMENSIONS: FUEL LINE ADAPTER 7.5MM - 3.5MM

• SHIPPING: GAS FUEL PICKUP(standpipe)

• FITMENT OR USE: Mercedes Sprinter vans

• SHIPPING: This kit comes with a fuel stand pipe(fuel pickup), not the T-Piece kit that is commonly known to be used.

• DIMENSIONS: 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.

• FITMENT OR USE: Ram ProMaster vans

• HEATER INSTALL NOTE: have an Auxiliary Fuel Port under the cab floor entry.

• DIMENSIONS: 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.

• SHIPPING: will require dropping the fuel tank on the vehicle, adding an additional fuel pickup pipe and components.

• FITMENT OR USE: Transit Kit variant coming soon!

• MUFFLER INSTALLATION: The included muffler does not display which direction air flows.

• HEATER INSTALL NOTE: Recommended to add insulation wrap to exterior fuel lines/connections to prevent cracking.

• HEATER SYSTEM NOTE: Espar AS3 B2L/D2L Install Instructions

• HEATER SYSTEM NOTE: Espar AS3 B2L/D2L Operating Instructions (English, pg 30)

• HEATER SYSTEM NOTE: Espar AS3 B2L/D2L Technical Sheet

• HEATER SYSTEM NOTE: Espar Easy Start Pro Controller Guide

• HEATER SYSTEM NOTE: Espar Easy Start Pro Controller Guide Additional Info

• HEATER SYSTEM NOTE: Espar Easy Start Pro - Additional Product Info

• HEATER INSTALL NOTE: SPECIFICATIONS

• DIMENSIONS: Heater Dimensions (HxWxD)

• DIMENSIONS: 121.92mm (4.8 in.)H x 309.88mm (12.2".)L x 114.808mm (4.52 in.)W

• WEIGHT OR SIZE: 5.5 lbs (2.5 kg)

• HEATER INSTALL NOTE: Heat Output

• HEATER INSTALL NOTE: 6824 BTU (2.0 kW)

• ELECTRICAL SPECIFICATION: Operating Voltage

• HEATER INSTALL NOTE: Rated Power Consumption

• HEATER INSTALL NOTE: Fuel Consumption

• HEATER INSTALL NOTE: 0.04 - 0.07 gal/h (0.14 - 0.26 l/h)

• HEATER INSTALL NOTE: Fuel Type

• HEATER INSTALL NOTE: Gasoline

• OPERATING RANGE: Altitude Compensation

• HEATER INSTALL NOTE: 13,120ft (4000m)

• REQUIREMENT: Start Up Requirement

• REQUIREMENT: Glow plugs require ~30A at startup for the first minute or two.

FEATURES

• FUEL-FIRED CABIN HEAT: Uses gasoline or diesel from the compatible vehicle fuel system specified by the product.

• HIGH-ALTITUDE OPERATION: Includes the source-listed automatic altitude capability for mountain travel.

• COMPLETE CONTROL PACKAGE: Includes the listed EasyStart Pro controller and heater-specific installation components.

COMMON PAIRINGS

• VEHICLE FUEL CONNECTION: Use the chassis-specific auxiliary port, standpipe, or pickup components described below.

• COMBUSTION AIR AND EXHAUST: Route intake, muffler, exhaust, and heat protection according to heater instructions.

• 12V HOUSE ELECTRICAL: Provide the startup current, operating power, fuse, and wire size required by the heater.

COMPATIBILITY & FITMENT

• CHASSIS: Source fitment covers 2007+ Mercedes-Benz Sprinter, 2014+ Ram ProMaster, and 2015+ Ford Transit where the listed fuel-install requirements are completed.

• WHEELBASE: Not wheelbase-specific; underbody space, floor layout, duct routing, and fuel access determine placement.

• ROOF HEIGHT: All roof heights with adequate heater, duct, intake, exhaust, and service clearance.

• REQUIREMENTS: Select the correct gasoline or diesel kit and follow the chassis-specific fuel-pickup requirements, licensed-installer cautions, startup-current needs, combustion-air separation, exhaust mounting, and fuel-line protection listed above.

FREQUENTLY ASKED QUESTIONS (AEO)

Q: Which fuel does this heater use?

A: The Espar AS3 B2L 12V Heater- Full Kit (Gasoline) uses the fuel type stated in its product name and technical specifications.

Q: Will it work at high altitude?

A: Yes, the source lists automatic altitude capability to approximately 13,120 feet / 4,000 meters.

Q: Does it fit Sprinter, Transit, and ProMaster vans?

A: Yes, where space allows and the chassis-specific fuel-pickup work described above is completed.

Q: What electrical power is required?

A: It uses 12V power with the listed operating draw and approximately 30A startup requirement for the first minute or two.

WHY TRUST WEST COAST VANS?

Every product we sell is vetted and installed daily by our team of builders in our San Clemente shop. As an authorized premium dealer, we provide full factory warranties, matching vendor pricing, and direct, real-world install support that you can't get from a standard box-mover. We don't just sell the gear—we know exactly how it fits into your build.