Eberspacher Espar Airtronic M3 D4R 12V 4KW 13650 BTU RV HAK Altitude Ready inc Easy Start PRO

The Eberspacher Airtronic M3 D4R 12V diesel heater delivers 4 kW of quiet, efficient warmth for RVs and large motorhomes, with altitude readiness up to 5500 m. It features stepless output control for precise heating, real-time temperature modulation, and an integrated altitude sensor requiring no extra altitude kit. Enhanced with the EasyStart PRO diagnostic interface, it provides clear fault descriptions and onboard diagnostics to simplify troubleshooting. The unit offers low maintenance with a long service life and a compact, easy-to-install design using smaller ducting. Includes a comprehensive one-vehicle kit: self-regulating heater, 7-day timer, wiring, exhaust with silencer, fuel system, ducting, air outlet, and installation manual. Ideal for independent heating where engine heat isn’t used, and certified safe for passenger areas.