What are the warranty problems that one will run into if you so a DIY on a replacement of your furnace?
I've seen some mfrs (Goodman for one) that no longer accept non-professional installations for warranty items. I fully understand the challenges involved in doing this as a DIY project, but I am well skilled in every aspect (sheet metal, gas lines, electrical, venting, etc) and I don't take any short cuts. I just want to save some money, since it's pretty tight right now.
Anything else to be concerned about?
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