
VEHICLE WATER HEATING
Hydronic S3 D5E
Heat a vehicle coolant circuit with this 5 kW diesel kit. Cabin warmth and hot water depend on the connected heat exchangers and plumbing.
EBERSPACHER DIRECT
Explore Hydronic water heating for vehicles and boats.
Build around the coolant circuit, heat exchangers and controls.

VEHICLE WATER HEATING
Heat a vehicle coolant circuit with this 5 kW diesel kit. Cabin warmth and hot water depend on the connected heat exchangers and plumbing.

NARROWBOAT WATER HEATING
A Hydronic S3 D5E kit for narrowboat heating systems, with EasyStart Pro. Connect to a correctly designed radiator and calorifier circuit.

REPLACEMENT WATER HEATER
A replacement heater unit for a compatible existing system. Match part number 252219050000, voltage and connections before ordering.

LARGER WATER-HEATING SYSTEMS
Explore the 12 V Hydronic M-II D10W for installations with higher heat demand. Check system design and required installation components.
Hydronic heaters warm a closed coolant circuit. Cabin warmth needs suitable radiators or matrix heaters; domestic hot water needs a calorifier or compatible heat exchanger that keeps the water supplies separate.
EXPERT HELP, WHEN YOU NEED IT
Choosing a heater, finding a part or planning a repair?
Talk to the specialists at Butler Technik.