Not enough space above ground? Underground has free real estate.
Underground heat pipes for Factorio 2.1, for every underground belt tier. A continuation of Underground heat pipe by Quezler and its 2.1 fork by OC1024. Quality Heat Pipes (Bunshaman) and Casting heat pipe (KCKy) are folded in.
Features
Underground heat pipes
- One for every underground belt: yellow, red, blue, green (Space Age), supersonic (Factorio+), plus superior, ultra, hyper and absolute with Advanced Belts.
- Each reaches as far as its underground belt. For Advanced Belts that's its own "underground length" setting (15, 19, 23 and 27 by default). Every length can be overridden in the startup settings.
- Ends only pair with the same tier, so you can weave them.
- Direction doesn't matter: heat flows both ways.
- They heat the tiles they sit on, just like a normal heat pipe.
- The recipe unlocks once you have both heat pipes and the matching underground belt researched.
Quality
- Heat pipes heat a bigger area: +1 tile of heating radius per quality tier (uncommon +1, rare +2, epic +3, legendary +4, and one more for each quality above, such as Mythic). This counts tiers, not quality levels, so quality mods that stretch the levels don't blow the radius up.
- Underground heat pipe ends get the same heating radius bonus.
- Underground heat pipes reach further: +1 tile per quality level (legendary +5). If Better Quality (Reborn)'s underground belt length option is on, its rule is used instead, so belts and heat pipes always match.
- Mined quality pipes give back the normal item at that quality, and blueprints store the normal item, so robots and the logistic network work as usual.
- Both bonuses can be changed or turned off in the startup settings. Tooltips show the values for every quality.
Casting heat pipes
- The foundry can cast heat pipes from molten copper and steel (Space Age). It unlocks with Nuclear power or Heating tower.
- Every ingredient, the output and the crafting time are startup settings.
- If you also run Casting heat pipe, this recipe steps aside so there's never two.
Compatibility
- Better Quality (Reborn): heat pipes use its quality library (its variants, swapping, blueprints and tooltips). Without it, this mod makes its own.
- Mythic Quality (Reborn) and other quality mods: every quality is picked up automatically.
- Thermal Plant, Thermal Tap and Pre-Heated Exchanger by Meddleman: building them over an underground heat pipe doesn't hook them into it, Thermal Plant's connectors show the right state, and Thermal Tap refreshes its heat connection.
- Any modded building with heat connections is handled, not only the vanilla ones.
- Farther Heat: the underground ends follow the normal heat pipe's radius.
- No on_tick while idle: everything runs on build, remove and rotate events.
Coming from another mod?
- Underground heat pipe / Underground heat pipe forked: same building names and settings, so your placed pipes and settings carry over. Disable the old mod, enable this one and load your save.
- Quality Heat Pipes: your quality heat pipes turn back into normal heat pipes, keep their quality, and get their bigger radius again on load. Disable the old mod first.
These mods are marked incompatible because they'd make the same buildings twice.
Known limitations
- Turning the quality settings off on an existing save removes quality heat pipes and quality underground heat pipes that are already placed. Change them before you build, or keep a backup.
- When placing by hand beyond the normal length, the second end pairs one tick later, after it's switched to its quality version.
- Two ends of different quality still pair. Use the same quality on both ends for the full length.
Credits
- Quezler: Underground heat pipe
- OC1024: Underground heat pipe forked (2.1)
- Bunshaman: Quality Heat Pipes
- KCKy: Casting heat pipe
- FallenPaladin: Underground Heat Pipe (Reborn)
Found a bug? Post it in the Discussion tab.