The easily installed air heaters heat-up the vehicle cabs or transporter interiors. Even when the engine is shut off they facilitate reconnaissance and surveillance missions with especially low fuel costs. A 20-hour deployment is possible with about 4 l of fuel, and completely without any engine noise! We call this low-noise non-stop operation stealth heat. A mere 2.6 kg and fabricated from sustainable materials: our air heater is not only the lightest device on the market, it is also the first choice for environmental reasons!