Translations:Room/27/en
From Vintage Story Wiki
Any blocks may be used to create a cellar, but different blocks have different insulation values. Blocks in the stone , soil , ceramic , or ore classes are the best insulators, and will each add 1 to the cooling block total. The one exception being farmland which gives 3 to the non-cooling block total, as do trapdoors. Airtight doors add 3 per block of space they occupy when open and 1 per block when closed to the non-cooling block total. The game creates the cooling score by dividing the non-cooling block total by the cooling block total and capping the number at 1, for 100%.