I have a 1 1/4″ NPT pipe that originates from my boiler’s supply outlet. Because I wish to make some modifications to my heating system, I am trying to remove this pipe and install a longer pipe. However, when I tried to remove this pipe with a pipe wrench, any torque I applied would cause the boiler to start moving. Therefore I abandon this idea, fearing that I can damage the boiler. My next game plan was to extend the pipe using a coupler. However, before I can do this, I have to remove an elbow piece on top of the pipe. Unfortunately that bad boy is in pretty good! My next idea is to get a strong buddy to help me. Using pipes with the pipe wrenchs pulling opposite ways maybe I will get lucky. Will heating the elbow with a torch help, or will it make it worse? Is there any other tricks of the trade that help when removing NPT piping?