re: Shop heating and cooling

I've got a forced air furnace (sealed combustion) hanging from my ceiling with the duct running across the back wall that does a fantastic job of keeping the shop warm in the winter (MN), and I run an evaporation style humidifier set to around 30-35%, otherwise it ends up in the single digits when it gets below zero outside and the furnace runs more.

When that setup is no longer necessary, I have a dehumidifier with an automatic pump to control humidity, and a dual vented portable AC unit that vents out through the garage door (I cut holes and made a custom bracket for it), for when I need that.  Wouldn't mind a mini split, like everyone will say is needed, but the above gets the job done just fine for me for the time being.  Significantly cheaper than the mini split, and I don't need a lot of cooling, just when it's up in to the 90+ degrees and humid.  I also installed a remote controlled oscillating fan in the corner ceiling near my bench, so even if it's a little warm I can run that and be fine.