Heat Production

The sun is gone and It's getting colder.
Burn fuel to produce heat and survive.
Create your own factory make this process as efficient as possible. 
It will soon be too cold to survive, but you can use automation to delay the inevitable.
Campfires and Furnaces burn wood and coal to produce heat.
Place down Miners to get resources out of ore nodes.
Use Smelters to convert Iron Ore to Iron Ingots.
Inserters move items between buildings automatically!

Controls  

• Move - WASD  
• Zoom - scroll wheel  
• Build mode - E  
• Rotate building - R 
• Production info - Hover over or click on the thermostat  
• Mine Resource (trees and ore) - Click while not in build mode  
• Delete building - Delete or Right click while in build mode  
• View building inventory - Click on building  
• Transfer items with a building - Click on item   
• Transfer only one item - Click on item and Hold Shift  
• Transfer half stack of items - Right click on item
• Move building - Click and drag a building in build mode

Notes

• When deleting buildings, make sure to empty its inventory, you will not get it back
• If your inventory is full when deleting buildings, you wont get any items back
• When making a chain of inserters, inserters can only take from the one behind them
• You may need to increase your audio to hear the wind background sfx in the web version

Stats

• Heat loss rate = 1.5*(Time)+1
• Starting heat level is 288K (26%)
• Freezing heat level is 273K (0%)
• Maximum heat level is 330K (100%)
• Campfires burn items for 10 seconds
• Furnaces burn items for 15 seconds
• Coal produces 4 K/min
• Sticks produce 1 K/min
• Production rate (on screen) is averaged over the last 30 0.2 second intervals
• Smelters convert 3 iron ore to 2 iron ingots in 2 seconds
• Miners mine 1 item every second
• Inserters move an item in 5/6 seconds and reset in another 5/6 seconds (depending on its source availability)

Made for LD50 in 72 hours