Eberspacher Hydronic S3 D5E CL Welfare Diesel Water Heater Unit Upgrade 12v | 252971050000 | 252990050000

The Eberspacher Hydronic S3 D5E CL 12v Welfare Diesel Water Heater Unit is a genuine 5kW heating solution for cabins, RVs, and mobile workplaces. Supplied with the integrated fuel pump, it can be a direct drop-in replacement for existing Hydronic S3 installations using the Easy Start Select controller. This 12-volt unit delivers stepless heating from 1.3 kW to 5 kW, offering dynamic, fuel-efficient warmth with reduced noise. The kit includes a water circulation pump and a pressure-reducing fuel pump, plus silent-dosing and exhaust/air silencers for quieter operation. Benefits include engine pre-heat, interior saloon heating, optional domestic hot water when paired with a plate heat exchanger, and onboard diagnostics via Easy Start Select. 1-year warranty, genuine Eberspacher.