We had our furnace tuned up today by Coffman and were wonderfully satisified. The technician was knowledgeable and did not try to talk us into buying a new furnace. (Ours is only 11 years old) Said everything checked out and looked great. He spent some time talking to my husband about how to install a programmable thermostat (without trying to talk us into a very expensive one). Most effective, very courteous and efficient. I am thrilled to be back as a Coffman customer!