Need to Replace a leaking water hose Bibb. Is this soldered on or threaded?

I have a leaking water hose bib that is about 24 years old. Is it soldered on or can I remove it with wrenches?

 

You will want to get all of the water out of the pipe and valve before applying the torch.

 

I've replaced a few with the same issue, too much pipe sticking out. The copper pipe at the soldered joint may have cracked slightly because of the stress using the spigot. The rusted out handle indicates that it probably was a bit hard to turn. I would cut the pipe back to about an inch or so from the wall (using a pipe cutter) and solder on a female threaded coupler. Get a similar spigot so you can thread one on. Use a little tape. Should the new spigot ever fail again in the future, spin it off and replace it with a new one. if you go with this approach, spin on th enew spigot until snug. Over tightening it you can split the coupler.

 

In Houston, you probably don't have to worry about freezing, but if you wanted to use a frost-free silcock, you'd have to cut it way back inside the house to then install one.

It looks like you have enough length to just cut the old one off and insert a threaded coupling, then screw a new valve one. You might want to get a heat shield to prevent scorching the stucco.