But the schools that I've seen are too expensive. Anybody know of something like an online course that offers a valid certificate that I could take to a licensing board?
I'd like to learn heating and air conditioning.
It seems like too practical a subject to learn online; there are things that you just have to do in person.
I think you can buy some books to learn it yourself,also there may be many electronic materials for this subject.
Wish you have a good luck~
Wish you have a good luck~
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