Our heat pump system quit working entirely during the night of Nov 24/25th. Jerry came to look at it when we called the next day. He worked until nearly 9 PM trying to fix it, quitting only when we suggested it would be okay to stop then and come back the next morning to finish. We really appreciated his dedication to the job since we didn't even have emergency heat. As an old Navy guy, I give Jerry a "Bravo Zulu" for a job well done finding and fixing the problem.