Hi,
There's a demand for about any sub trade. A/C or better said MVAC (Motor Vehicle Air Conditioning) involes understanding the physics of heat transfer first and then you have all the different vehicles and the way they applied that. It's invasive to an automobile in almost every respect.
This is a VERY tough area for the biz of it. Big bucks in equipment and a host of legalities now to boot. It's also highly seasonal so it's not so easy as an ONLY trade for year round work.
There's as much to know about servicing/repairing automotive A/C as the rest of the car! Who told you this was a quick and easy thing to get into?
You really need to have a strong understanding of the first thing cars need to do - Start, run, and move safely down a road. Things you do to A/C can effect or damage other necessary operations and vs versa.
Not a good trade for dependable year round income. The easy $$ in A/C is the first breakdown of a nice original system of which about 65% is a common leak and a simple repair of the leak and proper recharge can be somewhat fast and easy. Don't be fooled though!
If you think working on outboards is aggrevating - A/C will be total hair loss!
T
Tom Greenleaf - MetroWest Boston - USA
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http://www.autoacsystems.com/tomgreenleaf/