{ "name": "External Heat Source", "icon": ["hbm:tile.heater_firebox", 1, 0], "trigger": [], "title": { "en_US": "External Heat Source" }, "content": { "en_US": "Many machines require TU - thermal units - to function. TU is transfered via copper contacts on the undersides of machines, they cannot be connected with pipes or cables.

Machines that can provide heat are:
[[Firebox]]
[[Heating Oven]]
[[Fluid Burner]]
[[Electric Heater]]
[[Heat Exchanging Heater]]

Machines that use TU include, but are not limited to:
[[Stirling Engine]]
[[Combination Oven]]
[[Boiler]]
[[Steel Furnace]]
[[Crucible]]" } }