Learning to swap out furnaces

[Plumber69]

How hard is it to learn the sheet metal side of furnaces

 

[Sylvan]

Do you mean the breaching?

You should learn to use a break, then a Pittsburgh machine to make the seams for the duct or a roller to make round ducts and again the Pittsburgh machine and get a wooden mallet to seal the seam

Figure a decent journeyman will take 5 years to be a decent tinsmith

 

[Sponsor]

 

[Fitter30]

It takes a lot of specialty tools, experience and training to make duct work correctly. Duct work is not only straight pieces but fittings and transitions ( one size to another size). And you will give up some blood! Changing out a furnace is not only the duct, wiring ( both control and power)
and refrigeration.