The time when my HVAC system exploded in my face, I’ve never been so scared! I thought that some pieces of the system would blast into me like grenade shrapnel. Fortunately, it wasn’t all that serious, but the explosion did really frighten me as well as my wife. After this experience, you would think that I would have learned my lesson to just call up the professionals. We had to pay a significant amount of money to have our HVAC unit replaced altogether. On the bright side, we had a brand new HVAC unit. Another positive thing was that this new HVAC unit was quite energy efficient! I supposed to keep it running at full capacity, we had to keep up with our system maintenance. I really wanted to handle most of the maintenance on my own, but my wife strongly advised that I go with the professionals. She said she would be all for saving money, but she felt that I might either hurt myself or cause some unnecessary damage by trying to take care of something that I was not certified to handle. I watched a lot of DIY videos and felt confident that I could do all these things, but she was probably right. Some things are just better left with the professionals who went to school for years to handle this type of equipment. I suppose there is a reason why HVAC repair costs so much money. Of course, with regular maintenance, you can certainly avoid costly repairs with your HVAC unit. I was still on the fence about everything, but most of the time, my wife was right about making decisions like this. I decided I would just cover the air filter replacements and call up the professionals for everything else.