I also have a supplier on speed dial that has any part that you might need
My dad was always in the garage trying to fix up something that was broken in the house. She consistently had projects all over the site. She had a large wooden work bench on the south side of the garage plus another large wooden workbench right next to it. My dad was always sitting at the workbench with the light on, even when there was no on the ground outside plus it was 20° inside of the garage, eventually, my Dad decided to install a radiant oil furnace plus I became entirely interested in furnaces at that time. The radiant oil furnace was a genuinely neat machine. I fixed it when it stopped toiling. I always remember the first oil furnace that my dad purchased for the garage plus how sizzling it made the site. I wanted to hang out with him even when it was snowing outside. As an adult, I took up the same interest as my dad. I enjoy to fix up old furnaces plus AC units. There is an area in the garage next to my beach house where I have a workstation set up. I have lots of uncommon parts for old furnaces plus AC units. I also have a supplier on speed dial that has any part that you might need. They can find the most obscure piece for an old oil furnace that is 50 years old. I often fix up these furnaces plus AC units plus then I sell them online or at the swap meet. I don’t make a ton of money, but it’s easily a fun interest that pays off.