What cooking appliances are there?

Furnace: Smelts ores into materials and can also be used for cooking food - you can roast meat and mushrooms in it just like on a campfire. Add wood as fuel and place smeltable resources (Iron Ore, Sulfur Ore, HQ Metal Ore) or food in the upper slot. Burning wood produces charcoal as a byproduct. Emits light and smoke.

Upgraded Furnace: the second-tier furnace. Two smelting lines with their own input slots run from one shared fuel slot, so you can smelt two different things at once. Each line works about 25% faster than a regular furnace, and the output is shared across 4 slots instead of 3. Fuel burns faster while both lines are running, but overall a log smelts more ore here than in a regular furnace. Researched at the workbench after the Garage Door. If you had wood in the old second fuel slot, it's moved over automatically when you open or light the furnace.

Campfire: Provides light, warmth, and can cook food. Place indoors or outdoors. Add wood as fuel and place food in the upper slot to cook. Emits visible light and smoke-use cautiously at night.

Cauldron: Cooks food like a campfire. Functions the same way-add fuel and place food.