Do a search on you tube. There you can learn EVERYTHING! I did... water heater went out a few months ago (I didn't know much at all about them) and I repaired it myself for $9.00!

I once repaired domestic and foreign cars for a living at many new car dealerships... BMW, Toyota and Nissan to name a few so I have done it all except for heavy line work.

PM me and I can walk you through soldering. It's so easy as long as you have the correct supplies and tools.