Describe the bug
Make sure to include:

1. What did you expect to happen?
   Blast furnace to stay put during snowfall.
2. What actually happened instead (i.e. what was the bug)
   Snowfall made Blast Furnace pop off, in perhaps the same way as #570

To Reproduce
Attention to detail is important!

1. Do '...'
   Build blast furnace during snowfall.

Meta Info

• TFC Version: 0.X.X.103 on test server.

Sorry, misread