I am not someone who has a single of those large egos, then i am also not someone who claims to think it all. In reality, I don’t think much of anything other than what you need to think to live; However, a single thing I can tell you I really do think something about is air conditioner! I am not a certified heating plus air conditioner specialist, plus I never went to university to become a certified heating plus air conditioner specialist… But I can tell you that I think all about a/cs inside plus out because our Grandpa owned a heating plus air conditioner repair shop when I was growing up. He didn’t deal in any kind of gas furnaces or heating systems, just air conditioner! Mostly, it was a lot of window a/cs or portable a/cs at that time. But, I l gained a lot! I was able to take our knowing air conditioner repair plus now be able to repair central heating plus air conditioners myself! Don’t get myself and others wrong, I can’t repair extreme concerns with our central heating plus air conditioner… That I would still need to call a local heating plus cooling professional about. But, I can repair smaller air conditioner plus heating concerns that most would still call the Heating plus A/C workman about. I even did our own ductwork sealing plus ductwork cleaning too a single time. I am thankful to our Grandpa for what he taught myself and others as a kid… And he would be certainly proud of myself and others this month if he were still around to see what I can do with Heating plus A/C systems!