Soldering brass to copper help....PLease!
New install. No Water involved. Need to get outside wood boiler online but I am having a heck of a time soldering brass fittings to copper. I am cleaning copper and brass extremely well and pasting both. Heating the joint not the copper pipe. The solder eventually melts at the joint but does not flow into the joint. It seems the copper pipe is getting hotter than the joint and the solder is just rolling off the copper even though I am applying the heat to the brass joint and constantly touching the solder to joint to see if it will flow. What am I doing wrong? I have no problems copper to copper but the heavier brass to copper I can't get to flow correctly. I'm thinking maybe I am using the wrong solder? Any advice would be appreciated.
I'm real close to buying threaded fittings to finish the job but hate to waste the money I already spent on sweat fittings....some are costly.