Now that's impressive. I once was doing a HVAC job on an old house that was being completely restored by a New Zealand boat builder and was so impressed with his hand work. Very few power tools used and joints, well water tight and floating, as expected. The job, both his and mine went on for 18 months. Mine of course was in stages as rooms were finished. I was installing a residential zoning system that had 7 zones, each with their own thermostat, dampers, and heat/cool supplied by my second installation of a ground source heat pump. This project was not for the faint of wallet and was absolutely beautiful when completed. When the project was completed I was invited back for a full reveal which was very special to me as I was so inspired by this craftsmans work. The kitchen, with a walk-in fireplace, had been completely redone in cherry. All cabinets were hand made onsite. All trim work custom made onsite. To me it had become a museum of stunning woodwork by a master.
The owners and I had become friends over the course of the job and the invite back wasn't necessary as I had already remotely programed their entire system. The series of thermostats and other controls were computer controlled and I had installed and interface and modem so it could be called up, logged into, and adjusted as needed. I could tell static pressure of the airflow in the ducts, status of the supply air at each damper, damper position, room and duct air temperature. I could troubleshoot their system remotely with a simple call in. But this is getting away from the subject. My point is that I've met very few artisans with that level of workmanship and it was a pleasure watching and asking questions which seemed to please him. A smart man might have quit his day job to become an assistant to this craftsman and walked away with an education.