2014 CaptiveAire makeup air unit. Unit is setup for LP - Propane. Can be converted for Natural Gas. 259,200 Btu’s. Was working fine when removed. I have all the documents and build sheets for this unit from captiveAire, no guesswork. Can be used for temporary heat or heating large shops, paint booths, kitchens……… etc. $2000 cash No Emails….. please call, text or chat. Thanks for looking