Insulating Doors - Vanilla since 1.20-rc.7!

Tweak included in vanilla 1.20-rc.7 and newer by default!

 

This is a code mod that patches the necessary classes so that you can create a door that insulates a cellar.  It simply checks whether your door is made of the same materials that normally insulate a cellar, namely Ceramic, Stone, Soil, and Ore.

This is fully compatible with the Cellar Door mod so that it will now insulate the cellar like ceramic should!  Similarly if you are on 1.20 or later you can simply use the new Kiln door to get the benefits of insulation for your cellar.