CurseForge · Minecraft mod
Thermal Systeams
Addon for the Thermal Series that adds Steam! Boilers, Dynamo and more!
Quick answer
Which Thermal Systeams release should I use?
Thermal Systeams systeams-1.20.1-1.9.2.jar targets 1.20.1 with NeoForge, Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 3 required mods have matching files.
Where it goes
Is Thermal Systeams required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Thermal Systeams systeams-1.20.1-1.9.2.jar need?
systeams-1.20.1-1.9.2.jar. Change the file and its required mods may change too.
Install Thermal Foundation, CoFH Core, Thermal Expansion first. We found matching files for this game-version and loader setup. 17 come through another mod in the chain.
17 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Thermal Systeams without breaking your instance.
Built for Thermal Systeams systeams-1.20.1-1.9.2.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use systeams-1.20.1-1.9.2.jar. It targets 1.20.1 with NeoForge, Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Thermal Foundation, CoFH Core, Thermal Expansion first. We found matching files for this game-version and loader setup. 17 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside systeams-1.20.1-1.9.2.jar. It opens that exact file at the source.
About this project
What does Thermal Systeams add?
Thermal Systeams adds core Systeams I felt were missing from todays Thermally enhanced and expanded worlds. Enhance your power generation with Steam!
Adds in nine different boilers, one for each dynamo type in Thermal Expansion, one for Thermal Extra's frost dynamo and one for PneumaticCraft: Repressurized's pneumatic dynamo. Each generates steam from water and the normal fuel that type of dynamo would take. That steam can then be used in a steam dynamo to generate power. By default this produces twice the amount of power as a normal dynamo. Boilers also accept dynamo augments, to improve generation speed and efficiency!
Systeams also adds in world interactions for dynamos and boilers! Shift right click on a dynamo with a boiler pipe to convert it to a boiler, and shift right click on a boiler with a redstone flux coil to convert it to a dynamo! The coil/pipe is returned, and contents are kept as much as they are able to.
There are various mod compabilities available aside from the two extra boilers. Steam can be output as a gas from Mekanism, allowing you to pipe it into a Mekanism turbine if you wish. All recipes are in JEI. As of 1.8.1 custom boiling recipes can be added, and systeams includes the ability to make plasma which is a more efficient way of making power from fuel!
You can find the mods config file at worldname/serverconfig/systeams-server.toml. Here you can configure various rates and ratios related to steam generation and consumption. To have this apply to all new worlds copy it to the defaultconfigs folder.
The recipes are able to be configured via the normal means, so datapack, KubeJS or CraftTweaker. Note that the boilers use the same recipe lot as their respective dynamo, so any changes to boiler recipes must be made to dynamo recipes. (apart from the rf to steam ratio. That is configurable via the config file mentioned above)

Finally a massive thanks to King Lemming and the rest of the CoFH team who make the Thermal Series, to Reda, the CoFH artist, for such amazing textures that mine are based off and to Random, for some design, texturing and code advice.
And to Shiny for being.. well, Shiny.
Project description from CurseForge.
Pick your setup
Thermal Systeams by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.20.1
2 loader builds1.19.2
2 loader builds1.18.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Thermal Systeams versions and loaders
systeams-1.20.1-1.9.2.jar
20 Jul 2025
systeams-1.20.1-1.9.1.jar
28 Feb 2025
systeams-1.20.1-1.8.2.jar
19 Dec 2024
systeams-1.20.1-1.8.1.jar
12 Dec 2024
systeams-1.20.1-1.8.0.jar
28 Nov 2024
systeams-1.19.2-1.6.3.jar
22 Sept 2024
systeams-1.20.1-1.7.1.jar
17 Mar 2024
systeams-1.20.1-1.7.0.jar
9 Jan 2024
systeams-1.20.1-1.6.1.jar
21 Dec 2023
systeams-1.19.2-1.6.1.jar
21 Dec 2023
systeams-1.20.1-1.6.0.jar
21 Dec 2023
systeams-1.19.2-1.5.0.jar
20 Sept 2023
Looking for an older file? The official CurseForge project page is in Resources.