Absolutely delighted with my new Alien heater. Hooked it up last night and when we got to the hangar today the engine was warm as a summer day and it fired right off with no strain despite an unheated hangar and ambient temp of zero degrees F (-18C). Goes on and off the airplane in less than 20 seconds. Custom hoses fit perfectly. Excellent concept, design and execution! Great product; worth every penny in reduced engine wear and convenience. Thanks!