The Eberspaecher Hydronic S3 Economy (5kW) engine pre-heater offers compact dimensions and flexible installation options for simple retrofitting in a large number of day cabs, sleepers, off-highway and construction equipment, marine, bus, municipal and work truck vehicles. As an all-in-one solution with comprehensive peripheral devices, it offers installation partners many practical advantages. With the new EasyScan diagnostic and service tool, fleets can analyze the operating condition of the pre-heater easily and quickly. Features of the Hydronic S3 Economy include a compact, efficient water heater with CAN bus interfaces; innovative peripheral devices and new diagnostic device; simplified installation and CARB approval.