Kim, my teenage daughter, told me that he had called the house services supplier! Our heating system needed heating maintenance because all the boiling water faucets including the shower had chilly water. By late afternoon I was convinced that Kim had not made that call because the Heating, Ventilation & A/C serviceman had not arrived yet. Just when I was about to make that call, I heard the doorbell plus on opening it was the Heating, Ventilation & A/C tech. I told him all the troubles that the people I was with and I were facing due to the malfunction of the heating device. I also added that the people I was with and I needed heating maintenance because it had been various years since the people I was with and I had a single. It was only after I was done that he told me that the people I was with and I must have called the wrong heating supplier because their supplier specialises in geo heat pump installation plus care. I was furious because this was yet another time that my child proved he had to be supervised to do something correctly. I apologized to the man plus he was kind enough to service it. He also evaluated the air duct which needed duct sealing in various venues including resetting the digital temperature control. After he was done, he told me all about geothermal heating technology plus the advantages of such a system. It was clear that the geo heat pump has irrefutable pros. It was something I had never thought about until that afternoon plus by the time he left I was considering it but I would have to save more. Since none of us had taken a shower the whole afternoon, it was a race as to who would get to the powder room first.