The Eberspacher Hydronic D5E is a professional-grade diesel-fired liquid water heater delivering 5 kW of heating output — engineered specifically for caravans, motorhomes, and large RVs where a reliable hot water supply is non-negotiable. The HS3 kit bundles every component required for a complete installation, including the burner unit, circulation pump, controller, fuel pump, wiring harness, and exhaust/intake silencer, so you're ready to fit and fire with a single purchase. Unlike electric systems, the D5E runs entirely on diesel drawn from your existing vehicle fuel tank, making it fully independent of shore power or battery capacity.

Ideal for serious travellers, grey-nomads, and full-time liveaboards, the Hydronic D5E heats not only your domestic hot water but can simultaneously feed a cabin space-heating circuit, eliminating the need for a second standalone heater. The ECU-controlled variable-output combustion system adjusts fuel burn to maintain precise temperatures in sub-zero conditions, and the compact burner head integrates neatly under a bunk or in a storage bay. If you demand the reliability of a European OEM heating system that runs hot Australian summers and freezing alpine winters with equal confidence, the D5E HS3 kit is the benchmark choice.