I have a weller gun maybe 135 watts for soldering wire.(i don't like crimp connectors for Ag use) I use shrink tube / rubbertape. If there's a lot of amps/heat or lugs involved I'll wrap the connection with glass cloth tape to keep the mastic/rubber tape from melting into the lugs.
For small signal work and occasional soldering of 30A andersons the Weller WES-51 soldering station is great. Beyond that there are Weller 100W temperature stabilized soldering irons. Unless you need to do just few connectors I strongly advise against cheap non-regulated irons - the tip will oxidize in no time.
I'd go with something like this if you are just going to do light to intermediate soldering work. The $10-30 radio-shack or other no-name brand soldiering Irons are a waste of money, as it burns tips away and tends to warp from the heat.
A tin of solder flux is also an indispensable idem for soldiering, as it helps the solder wick where you want it to and generally make the whole process easier.
I'd go with something like this if you are just going to do light to intermediate soldering work. The $10-30 radio-shack or other no-name brand soldiering Irons are a waste of money, as it burns tips away and tends to warp from the heat.
A tin of solder flux is also an indispensable idem for soldiering, as it helps the solder wick where you want it to and generally make the whole process easier.