Eberspacher Hydronic 3 D5E (HS3) Overview
The Eberspacher Hydronic 3 D5E (HS3) is a third-generation, fuel-powered water heater with a 5 kW heating capacity, designed for passenger cars and transporters. This heater efficiently warms the vehicle’s interior, engine, and defrosts windows. Its compact design allows for installation in tight spaces, with the water pump and fuel metering pump installed separately. The fuel is sourced directly from the return line using an admission-pressure-resistant metering pump, eliminating the need for a separate fuel tank extractor and significantly reducing installation time.
Altitude Compatibility
Warranty and Reliability
This is an authentic Eberspacher heater, covered by a 36-month warranty.
Advanced Heating System
The compact and reliable Hydronic D5E 5 kW water heater features an independent, self-contained coolant system that rapidly provides hot water and air. A small coolant circuit is utilized, offering quick warm-up times, producing hot water within the heater unit. This water then heats a 10-liter hot water storage tank, which can also be heated via a 230-240V mains supply. A thermostatic mixer valve manages the hot water temperature to the taps, ensuring controlled temperatures for showers or taps, with hot water ready in approximately 5-10 minutes.
Installation and Functionality
The D5E CS model is designed for easy exterior mounting on the vehicle, while the hot water storage tank offers flexible installation options, allowing placement either inside or outside the vehicle. For optimal fit, be sure to check the dimensions carefully. Blower units are installed in areas requiring the most heat, such as living spaces and the rear. The automatic blower control switch, equipped with an external temperature sensor, regulates room temperature by adjusting fan speed. The fans operate more quickly as the temperature difference increases and slow down as the room temperature approaches the set level.
Operational Efficiency
Once activated, the HS3 Water heater uses the vehicle’s fuel in a combustion process to heat the coolant through a heat exchanger. The heated coolant circulates through the heating circuit, passing through the freshwater storage tank and blower heaters, propelled by an integrated water pump. The Eberspacher Hydronic 3 D5E unit is self-regulating, functioning similarly to a domestic central heating system.
Vehicle/Camper Kit (12-volt 5.0 kW HS3 Kit) Includes:
Applications Include:
Custom Kits and Accessories
Bespoke kits can be custom-built to order. Please discuss your requirements with our sales team. If you need additional accessories for this heater kit, please contact us at 01924 274774, and we will be happy to assist you.
Warranty Terms
Mellor Online is an authorized distributor of heating parts and heater kits for the vehicle and marine markets.
Warranty Coverage:
Additional Services:
Returning a Heater:
Customer Responsibilities:
Exclusions and Important Notes:
Returns Policy
Our returns policy does not cover items that fall under manufacturer warranties. If you believe your item is eligible for warranty service or you wish to return an item for a refund, please contact our support team or email us at sales@melloronline.co.uk.
Refunds and Cancellation Rights
You have the right to cancel your order within a 14-day cooling-off period, starting the day after you receive your items. Refund requests can be submitted within 30 days of the invoice date.
Notification of Intent to Cancel
To cancel an order or request a refund under the UK Consumer Protections (Distance Selling) Regulations 2000, you must inform Mellor Online of your intention by phone, email, WhatsApp or post within the applicable period. This is 14 days for cancellations and 30 days for refunds.
Upon receiving your request, we will send you a confirmation and authorization to return the goods. Please include your original invoice number with your return. All items must be in a resaleable condition.
Return Shipping
You are responsible for returning goods using an insured and trackable shipping method at your expense. We will only consider refund requests if there is proof of delivery to Mellor Online from your chosen courier. Once we receive the goods, we will issue a full refund minus any delivery charges.
If you cannot arrange a return, please contact us. We can arrange collection for you, but a fee will apply, which will be deducted from your refund.
Please note that delivery charges from the original purchase are non-refundable, as the service is completed once the order is placed.
Processed and Dispatched Orders
Orders that have already been processed or dispatched cannot be canceled; however, they can be returned for a refund once received by the customer.
We strive to facilitate a prompt refund process upon receiving returned items.
Return Address
FAO: RETURNS
Mellor Online
139 Manor Road
Ossett
West Yorkshire
WF5 0LQ
United Kingdom
Specific Terms
Your statutory rights are unaffected by the above terms. Consumers, excluding business trade customers, are further protected under the UK Consumer Protection (Distance Selling) Regulations 2000.
For any questions, please contact our support department before returning any items.
Shipping Information: UK & Worldwide
UK Delivery:
International Delivery: