Eberspacher / Espar

Espar / Eberspacher Hydronic S3 D4E CS 12V Diesel Water Heater

$999.99
$899.99
(Save  $100.00 )
Core Features & Benefits
  • Features & Benefits
  • Enjoy a comfortable interior before you even set off, making every journey more enjoyable.
  • Features & Benefits
  • Reduce stress on your engine and prolong its life by preheating before ignition.
  • Features & Benefits
  • Quickly clear windows for safer driving, saving you valuable time during your daily routine.
  • Features & Benefits
  • With its compact size, the heater is suitable for both land and water applications.
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Extended Warranty for Peace of Mind:
Warranty Information
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    14-day Returns
  • Free Shipping to US/CA
    on orders $1000
  • 24/5 Customer Support
    Shop with an expert
  • Easy Returns
    14-day Returns

ESPAR HYDRONIC S3 D4E 12V DIESEL WATER HEATER

Boost your vehicle's heating system with the Espar Hydronic S3 D4E 12V Diesel Water Heater. Experience fast interior pre-heating, smooth engine starts, and efficient window defrosting, ensuring a comfortable and convenient ride every time.

Its wide range of installation options make it perfect for both land vehicles and marine applications.

FEATURES OF ESPAR HYDRONIC S3 D4E 12V WATER HEATER

Experience a warm and inviting cabin environment, even on the chilly days.

Ensure smooth engine starts, minimize wear on components, and improve overall fuel efficiency.

Easily clear frost and ice from your windows, enhancing visibility and safety.

Compact design allows for simple installation in a wide range of vehicles and marine applications.

Experience a warm and inviting cabin environment, even on the chilly days.

Ensure smooth engine starts, minimize wear on components, and improve overall fuel efficiency.

Easily clear frost and ice from your windows, enhancing visibility and safety.

Compact design allows for simple installation in a wide range of vehicles and marine applications.

EFFICIENT HEATING FOR ANY OCCASION

Whether you're driving a consumer vehicle, an army/military vehicle, or looking for recreational comfort, this heater is designed to meet your needs.

With a heating output ranging from 1300 to 4300 watts, it's the perfect solution for a wide range of vehicles. Its compact dimensions ensure easy installation and flexibility for a variety of setups.

ENGINE PRE-HEAT FOR EASY STARTS

Don't worry about cold starts or engine struggles anymore. The Espar Hydronic S3 D4E offers quick interior pre-heating and engine pre-heating, keeping each start safe and smooth.

As a result of its low fuel consumption, it is not only environmentally friendly but also economically efficient.

EFFICIENT WINDOW DEFROSTING

Espar Hydronic S3 D4E simplifies the task of defrosting windows during the cold season.

You can quickly clear your windows without the need for scraping or extended waiting. Enjoy clear visibility and get on the road faster, all while saving time and energy.

VERSATILE INSTALLATION OPTIONS

Thanks to its compact size and clever design, the Hydronic S3 D4E can be easily installed in your vehicle's engine compartment. It's not just limited to land vehicles; it's also an ideal heating solution for marine applications.

Boats, vessels, and other marine vehicles can benefit from this heater's quiet and energy-efficient operation, enhancing your onboard comfort.

AUTOPLY PRE-CUT INSULATION KIT YOUR VAN

Improve your heater’s efficiency and stay warm for longer with AutoPly woven fabric insulation!

  • Espar Hydronic D4E S3 Water Heater 252934050000 / 252992050000
  • Fuel Metering Pump
  • Water Pump
  • Water nozzle x 2
  • O Ring x 2
  • M5 Bolt x 18

UNIVERSAL KIT SHOULD BE SELECTED AS AN OPTION IF REQUIRED

Technical Specifications of the Espar / Eberspacher Hydronic S3 D4E CS 12V Diesel Water Heater

Part Number:
252933050000 / 252992050000 / 25.2933.05.0000 / 25.2933.05.00.00
Fuel:
Diesel
Voltage:
12V
Heat flow:
4435 - 14672 BTU (1.3 - 4.3 kW)
Fuel consumption:
0.03 - 0.14 gal/h (0.15 - 0.53 l/h)
Average electrical power consumption (without water pump, without vehicle fan relay):
During operation: 5 - 27 W; While starting: 135W
Weight – without coolant and attachments:
4.4 lb (2 kg)

Included in the kit:

ESPAR HYDRONIC S3 D4E 12V DIESEL WATER HEATER

Boost your vehicle's heating system with the Espar Hydronic S3 D4E 12V Diesel Water Heater. Experience fast interior pre-heating, smooth engine starts, and efficient window defrosting, ensuring a comfortable and convenient ride every time.

Its wide range of installation options make it perfect for both land vehicles and marine applications.

FEATURES OF ESPAR HYDRONIC S3 D4E 12V WATER HEATER

Experience a warm and inviting cabin environment, even on the chilly days.

Ensure smooth engine starts, minimize wear on components, and improve overall fuel efficiency.

Easily clear frost and ice from your windows, enhancing visibility and safety.

Compact design allows for simple installation in a wide range of vehicles and marine applications.

Experience a warm and inviting cabin environment, even on the chilly days.

Ensure smooth engine starts, minimize wear on components, and improve overall fuel efficiency.

Easily clear frost and ice from your windows, enhancing visibility and safety.

Compact design allows for simple installation in a wide range of vehicles and marine applications.

EFFICIENT HEATING FOR ANY OCCASION

Whether you're driving a consumer vehicle, an army/military vehicle, or looking for recreational comfort, this heater is designed to meet your needs.

With a heating output ranging from 1300 to 4300 watts, it's the perfect solution for a wide range of vehicles. Its compact dimensions ensure easy installation and flexibility for a variety of setups.

ENGINE PRE-HEAT FOR EASY STARTS

Don't worry about cold starts or engine struggles anymore. The Espar Hydronic S3 D4E offers quick interior pre-heating and engine pre-heating, keeping each start safe and smooth.

As a result of its low fuel consumption, it is not only environmentally friendly but also economically efficient.

EFFICIENT WINDOW DEFROSTING

Espar Hydronic S3 D4E simplifies the task of defrosting windows during the cold season.

You can quickly clear your windows without the need for scraping or extended waiting. Enjoy clear visibility and get on the road faster, all while saving time and energy.

VERSATILE INSTALLATION OPTIONS

Thanks to its compact size and clever design, the Hydronic S3 D4E can be easily installed in your vehicle's engine compartment. It's not just limited to land vehicles; it's also an ideal heating solution for marine applications.

Boats, vessels, and other marine vehicles can benefit from this heater's quiet and energy-efficient operation, enhancing your onboard comfort.

AUTOPLY PRE-CUT INSULATION KIT YOUR VAN

Improve your heater’s efficiency and stay warm for longer with AutoPly woven fabric insulation!

  • Espar Hydronic D4E S3 Water Heater 252934050000 / 252992050000
  • Fuel Metering Pump
  • Water Pump
  • Water nozzle x 2
  • O Ring x 2
  • M5 Bolt x 18

UNIVERSAL KIT SHOULD BE SELECTED AS AN OPTION IF REQUIRED

Choosing Guide

Option Choosing Guide for this product is coming soon, please contact support@heatso.com if you need help picking the right options or have any questions.

Shipping

  • United States - 1-5 Working Days
  • United Kingdom - 2-5 Working Days
  • European Union - 2-7 Working Days
  • Australia / New Zealand - 2-7 Working Days
  • Rest of World - 2-7 Working Days

Returns

You can return or exchange goods within 14 days from the date of purchase if the item is unused and brand new in unopened packaging. You must contact us before returning any goods, though.

View full shipping & returns information

Warranty Information

Most heaters come with 2 year warranty + optional 1 year extended Warranty available

  • Parts - 1 Year Warranty
  • Refrigerators - 1 Year Warranty
  • AC Systems - 1 Year Warranty
  • Heavy duty heating equipment (10 kW+) - 1 Year Warranty
  • Other items - 1 Year Warranty

Installation, servicing and maintenance must be done in accordance with manufacturers guidelines. Failure to follow these guidelines will result in voiding your warranty.

We provide free technical and installation support via email or phone to all of our customers who purchase a heater, heater kit or other products from Heatso. We take pride in our customer service and want to ensure that your heater system is properly installed. As a result, if you have any difficulties, please do not hesitate to contact us.

If you require removing and/or refitting your item, please visit a local professional or authorized specialist, if you can not find one you can contact us and we will try to recommend a local partner to assist with the task. The cost of removing and/or refitting this item is not covered by the warranty.

View full warranty Information

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