Cold mornings in a truck, van, or RV don't have to mean shivering while the engine warms up. This 8kW diesel air heater runs on 12V or 24V power, or a 110V outlet, heating spaces of 108 to 161 square feet and reaching up to 210°F in five minutes. The all-aluminum heating body conducts heat quickly, while a quiet fuel pump sips just 0.04 to 0.1 gallons per hour at over 90% efficiency, so the 1.3-gallon tank carries you through an entire night without refueling. Control it via Bluetooth app from up to 98 feet away, or use the included remote and LCD to set timers, preheat, and adjust temperature from 46.4°F to 96.8°F. Safety features include a CO alarm, an insulated exhaust sleeve, a sealed fuel cap, and overheat shutoff above 518°F. A built-in drawer keeps accessories organized, and it moves easily between RVs, trucks, vans, and garages below 9,842 feet elevation.