Eberspacher Espar Water Heater Hydronic S3 B5E Petrol Gasoline Kit inc Easy Start PRO 5kW 12v

The Eberspacher Espar Hydronic S3 12V 5kW water heating kit provides reliable cabin heating and engine pre-heating for RVs, campervans, motorhomes, and even small buses. This gasoline-powered system features stepless heating control for efficient output from 1.3kW to 5kW, built-in altitude compensation up to 3000m, a virtually silent digital fuel metering pump, and a complete installation package with Easy Start PRO 7‑day timer. Its compact 5kW unit, pre-cut exhaust, water circulation pump, and comprehensive wiring harness simplify fitting in diverse vehicles. The HS3 supports domestic hot water with appropriate plumbing and offers OBD diagnostics for quick fault identification. Durable and low-maintenance with a two-year warranty, it’s ideal for year-round comfort and reliable pre-heating on the go.