Autoterm Flow 5D Hydronic Diesel Heater 24V for RV Campers

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Autoterm Flow 5D Hydronic Diesel Heater 24V for RV Campers The Flow 5D Hydronic Heating System from Autoterm is a compact, diesel-powered solution designed to keep engines ready an d interiors comfortably warm in the harshest conditions. This independent heater installs quickly in a wide range of vehicles, boats, and campers, and can connect to your coolant circuit or a central heating system to deliver warm air and reliable pre-heating—even when the engine is off. Why Flow 5D stands out Rapid, powerful warmth — up to 5 kW of heating power at 12V, enabling fast engine pre-heat and swift cabin warming. Extreme cold protection — automatically helps the engine reach and maintain proper operating temperature in temperatures as low as -45°C, reducing cold-start wear. Efficient, quiet operation — brushless induction motors provide long life and low noise in demanding environments. Low fuel consumption — draws diesel at a maximum rate of 0.6 L/h, preserving fuel for travel while delivering dependable heat. Flexible installations — designed to connect to the vehicle’s coolant system or a central heating loop for boats and campers, with a compact footprint ideal for tight spaces. No ducting required — streamlined installation with fewer parts, plus the option to add an extra fuel tank if needed. What’s included and how it’s ready to install Heater unit with integrated air intake and silencer Exhaust pipe and muffler Fuel intake and supply line Holder with shock absorber for vibration resistance Water circulation pump (D-7.09198.00.0) and TH11-4,4ml-12V fuel pump Air intake mounting kit and harness Mounting kits for cooling system, exhaust system, fuel system, heater and pump Heat insulation (28 x 5 x 450) Ideal use cases Overlanders and expedition travelers who park in remote locations and need a dependable heat source for cabin comfort and warm engine starts. RV, camper, and boat owners seeking efficient central heating and engine pre-heating without idling the engine. Fleet vehicles operating in cold seasons that require quick pre-heat to reduce start-up wear and keep drivers and passengers comfortable. DIY enthusiasts and installers looking for a robust, scalable heating solution with broad compatibility in cooling and fuel systems. How Flow 5D works and why it matters As a hydronic heater, Flow 5D circulates heated coolant through the engine block and/or an external central heating loop. By pre-warming the engine, it reduces rough cold starts and engine wear. At the same time, it channels warm air into living spaces, so you can step into a ready-to-go interior after exposure to freezing weather. When the engine is running, the system helps maintain a comfortable cabin temperature; and it can deliver warmth even when the engine is off, ensuring you stay cozy in parked scenarios. Key specifications and benefits at a glance Heating capacity: up to 5 kW Power supply: 12V (system optimized for 24V vehicle applications per title) Diesel consumption: up to 0.6 L/h Cold-start protection: effective down to -45°C Installation: coolant integration or central heating loop with compact footprint Noise: low with brushless induction motors Maintenance: designed to be reliable and long-lasting in rugged environments Video Guides The Truth About Diesel Heaters Cheap Chinese Diesel Heater — 6 Month Review Show more