My dad doesn’t understand HVAC system

My parents had me when they were much older. All of my siblings are at least ten years older than me. My parents always say that I wasn’t an accident, but I don’t believe that for a second. I always joke around with them about it too. Since my parents had me at an older age that means that they are getting older too. So, I have been trying to help my parents out around their house more because of this. I was talking to my dad last week about his HVAC system because I could tell that the current HVAC systems the house was starting to get a little old. I told him that it might be time to get a new HVAC system so that they didn’t have to worry about their HVAC system breaking down and having to pay a ton of money to have the HVAC system fixed. However, my dad really hated this idea and told me that he didn’t want to get a new HVAC system. He said that he likes his current HVAC system and didn’t want to have to worry about getting a new one and having to figure out how to use it. I told him that I would teach him everything that he needed to know, but he still wasn’t interested. I guess I am going to have to lay off on talking about the HVAC system because he started to get really annoyed with me about it. I just want my parents to be comfortable in their old age.

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