Eberspacher Hydronic HS3 D5E Diesel Water Heater Kit Eberspacher

Eberspacher Hydronic HS3 D5E Diesel Water Heater Kit

SKU 100-02406

$5,322.00

Heater Body Weight: 2 kg
Heater Body Dimensions: 215 × 91 × 144 mm

All specifications

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Questions? for expert advice, or read our buying guides

Key features

Stepless heat output from 1.3 kW to 5 kW — automatically modulates to demand
Draws from vehicle diesel tank — no LPG bottles required
12V operation with ultra-low power draw: just 5–32 W running
Near-silent operation: digital dosing pump with combustion air silencer and exhaust muffler included
Compact heater body: 215 × 91 × 144 mm, 2 kg
EasyStart Pro controller included — 7-day programmable timer, remote start capable
ECE-R122 and ECE-R10 (EMC) certified; operates at altitude up to 3,000 m
Complete installation kit — no additional parts required

Overview

The Eberspächer Hydronic HS3 D5E is a 5 kW diesel-fuelled hydronic water heater engineered for caravans, motorhomes, and campervans. Unlike propane systems, it draws directly from your vehicle's diesel tank — no gas bottles required. Output modulates automatically between 1.3 kW and 5 kW to match demand, minimising fuel use while maintaining consistent hot water and cabin heating. At just 2 kg and 215 × 91 × 144 mm, the heater body is extremely compact with a low 12V draw of just 5–32 W during operation.

Kit includes the Hydronic D5E heater unit with EasyStart Pro 7-day programmable controller, coolant circulation pump, digital fuel metering pump, wiring harnesses, fuel line, exhaust muffler, combustion air intake silencer, and all installation hardware — a complete ready-to-install package.

Common questions

How noisy is it inside the van at night?

Quieter than most people expect, because nothing roars down a duct. The loudest part is the dosing pump ticking as it meters fuel. Mount it away from a bed or a thin panel and soft-mount it if you can, or that tick telegraphs through the floor and keeps light sleepers awake.

Will it still light up in the high country?

It is rated to 3,000 m, which covers everything you can tow to in Australia: Kosciuszko, the Victorian alps, the Great Dividing Range. Altitude thins the air and leans the burn, so if you spend a lot of time up high, keep the combustion air intake clear and service it on schedule.

Where does a unit this small actually go?

Under a bunk, in a front boot or in a spare bay. At 215 mm long it fits places a gas system never will. What decides the spot is not the box: it is a straight run for the exhaust out through the floor, clean intake air, and room to service it later.

Specifications

Heat Output	1.3 kW – 5 kW (stepless modulation)
Maximum Output (BTU)	17,000 BTU/h
Fuel Type	Diesel (draws from vehicle tank)
Fuel Consumption	0.15 – 0.59 L/h
Operating Voltage	12V DC
Power Consumption	5 – 32 W
Heater Body Dimensions	215 × 91 × 144 mm
Heater Body Weight	2 kg
Max Operating Altitude	3,000 m
Certifications	ECE-R122, ECE-R10 (EMC)
Warranty	2 years

Delivery, returns & warranty

Shipping

In stock, ready to ship Australia Wide. Delivery within 2–8 business days depending on location. Freight items (awnings, fridges, heaters) are shipped via road freight — you will be contacted to arrange delivery. Free shipping on eligible orders over $99.

Warranty Details

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Warranty & Returns

Limited 12 Month Manufacturer Warranty

If you experience issues with your gear, please contact us for support.

What’s Covered?

Manufacturing defects
Faults in materials or workmanship

What’s Not Covered?

Damage caused by misuse, neglect, or improper use
Incidents occurring during delivery
Normal wear and tear from usage

How to Initiate a Warranty Claim

If you need to file a warranty claim, please follow these steps:

Contact us via email or the via the contact us
Provide the following details:
- Order ID
- Detailed description of the issue
- Images/videos clearly showcasing the fault (ensure they meet the recommended format and size for optimal review)
Our team will assess your claim and get back to you as soon as possible.

Note: Do not open a PayPal dispute, as this may delay the resolution process. Please follow the official claim process for quicker results.

⚠ Important Note:
We recommend testing your purchased product within one year of purchase. We cannot help process warranty claims beyond this period.

For full details, please refer to our other policies: