I think I've encountered a bug. I put a radiator in my coop for the winter, next to the hay hopper. When I had Robin upgrade the coop, she told me she placed an incubator in there, but it's missing.

I looked this up on the Stardew Valley Wiki, and apparently the incubator appears to the left of the hopper - presumably where I put my radiator, whoops.

I'm going to upgrade to the deluxe coop, but first I'll be moving my radiator out of that spot to see if an incubator spawns there. Either way, the dev may wish to look into this.

Okay, I'm stupid and I got it backwards. :V

My incubator spawned where it's supposed to, BUT it replaced my radiator, which just disappeared, so I'll have to buy a new one.