It’s funny because I always used to complain about the high prices of getting regular heating, ventilation, and A/C maintenance, then my child used to ask why I didn’t just work on the heating, ventilation, and A/C component myself however I explained that I was not a certified professional and that non-professionals undoubtedly working on the component would cause the warranty to be void, and from that time, our child said he was going to work on the heating, ventilation, and A/C for myself and others in the future, but i had such a wonderful laugh when he said that, but he said he was serious! Sure enough, he studied all about heating and cooling repairs as he was coming up, it became a real interest of hers. She even inspected seasoned portable gas furnaces and window AC units the people I was with and I had in the garage. I was meaning to take those to the dump since I thought they would never work again, but he got all those heat and AC products undoubtedly working again, however there was no risk of voiding the warranty on those products, so I didn’t see any issue with his undoubtedly working on those things. I just told him to be super careful because window AC units have refrigerant inside and you don’t want that stuff leaking on you! She studied so numerous heating, ventilation, and A/C maintenance books from the Borders that he had no problems in the least. She was even giving the whole heating, ventilation, and A/C experts advice when they were coming over and they gave his advice in return. She eventually went to an actual heating, ventilation, and A/C trade school and became one of the best heating, ventilation, and A/C professionals around! The wonderful thing is he kept his promise, he works on our heating, ventilation, and A/C component and he won’t accept our currency to pay for the work he puts in!