Our heaters are revolutionizing the aircraft engine preheating industry, they work by continuously recycling the same air in the engine compartment, evenly and consistently raising the engine and its components temperature. This method eliminates condensation and has proven to be the most effective and efficient way of preheating an engine. Aerotherm\x92s system is so effective and efficient that its top of the line model can have you ready to go in as little as 30 minutes! All Aerotherm models are equipped with a thermostat allowing you to leave the unit unattended. You can land, attach your heater to your aircraft, set the thermostat at your desired temperature and your airplane will be ready to go when you decide to fly again whether it\x92s hours, days, or months later. Our heaters are compatible with almost any aircraft, are easy to use, are not permanently attached to your aircraft, come with a 3 year limited warranty and are made right here in the USA. It may be the only heater you\x92ll ever need!