Radu is the most suitable technician for hvac heating repair. He knew the right procedure to fix the problem and he knew what to do to avoid future problems. While he was fixing my unit, he also kept on explaining to me the possible reason why it has issues. I then took it as a lesson for I really wanted to learn from his work. I was really happy also that he shared it with me so that I would be able to know the basic steps for repair. You're really amazing! You helped me a lot!