I can not say enough about the service I receive from Kotz Heating. I have a service agreement with them so I have them over every 6 months to check out the furnace/air. Every time I have either Troy or Matt who are very good service reps. This time they had to send Dave because Matt was sick. Dave was very professional, knowledgeable and friendly. I appreciate all the service reps. at Kotz they are all very good. My hat goes off to Dave this time around. Keep up the good work. Kotz should be very proud of the service reps. they have working for them. They are an asset to their department.