Wide Applicability: The diesel parking heater works effectively at altitudes under 9843ft. Compact and easy to install, it provides continuous warmth in high-altitude or cold environments, ensuring comfort no matter where you are Dual Control Options: The portable diesel heater includes a 98ft remote control for preheating from outside the vehicle, keeping the interior warm and avoiding frost. The LCD screen allows for temperature adjustment between 32-104℉ to suit your needs Low Fuel Consumption: With a precision low-noise fuel pump, the diesel air heater only consumes 1 gallon per night (0.18-0.36L/h). The 5L (1.3gal) large-capacity tank and ≥90% combustion efficiency maximize fuel use, reducing waste Upgraded Security Features: Enhanced security with a heat-insulated exhaust pipe shield to avoid burns or scorching. The leak-proof fuel cap minimizes risks on rough roads, and the fuel gauge ensures timely refueling, reducing the risk of dry burning Efficient Heating: This 8kW diesel heater operates on DC 12V-24V, suitable for areas ranging from 161-215 FT². The ceramic igniter ensures quick starts in cold weather, raising the temperature in your vehicle, RV, boat, and more