250 Fuel Capacity
The item id for Frost Gas Makeshift in unturned is 36087. You can use this ID with the commands below to spawn the item, give it to a player or buy it on a modded economy server.
Useable: Fuel
Size_X: 2
Size_Y: 2
Size_Z: 0.6
Fuel: 250
Use_Auto_Icon_Measurements: False
Blueprints: 1
Blueprint_0_Type: Tool
Blueprint_0_Supplies: 2
Blueprint_0_Supply_0_ID: 36016
Blueprint_0_Supply_0_Amount: 4
Blueprint_0_Supply_1_ID: 36088
Blueprint_0_Supply_1_Amount: 1
Blueprint_0_Level: 1
Blueprint_0_Skill: Craft
Blueprint_0_Build: 27