Trane says it can save the Warren County School System $371,000 a year and if it doesn’t, the company says it will write a check to make up the difference.The offer, almost too good to be true, raised eyebrows among School Board members who listened to the pitch from Randy Mauldin, who represents Trane.“My question is, where do they get their money?” School Board chairman Jeff Lee asked. “I don’t think they are doing this out of the goodness of their hearts.”Mauldin told the School Board his company has already identified $371,000 in annual savings by reducing energy use and other expenses within the school system.