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Server Heater project artwork

Modrinth · Minecraft mod

Server Heater

Prevents pesky server freezes upon shutdown

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Server Heater release matches 1.21?

Updated last month
Best match for your filters 1.1-neoforge
Game version 1.21, 1.21.1, 1.21.2
Loader NeoForge

Server Heater 1.1-neoforge targets 1.21, 1.21.1, 1.21.2 with NeoForge. Do not install it on the client. It must be installed on the dedicated server. No extra mods listed for this file.

Where it goes

Is Server Heater required on the client, server, or both?

Do not install it on the client. It must be installed on the dedicated server.

Client Not supported
Dedicated server Required
Loader for this release NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

This file is marked server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does Server Heater 1.1-neoforge need?

1.1-neoforge on 1.21. Every mod below is checked against that same setup.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Server Heater without breaking your instance.

Built for Server Heater 1.1-neoforge on 1.21. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use 1.1-neoforge. It targets 1.21, 1.21.1, 1.21.2 with NeoForge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    Do not install it on the client. It must be installed on the dedicated server.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside 1.1-neoforge. It opens that exact file at the source.

About this project

What does Server Heater add?

Server Heater

Because any server freezing when stopping needs a bit of warmth
to reach destination.

This mod detects when the server is entering its shutdown sequence,
and starts a non-blocking parallel process that will, at various
configurable intervals, try to push the rest of the game and other mods
to end up what they might be working on, and in the end, forcefully stop
it all if they don't comply.

Why maximum/minimum mixin priority

Because this mod is not here to make compromises.
Your server will stop when supposed to.

Side note for modpacks and server owners, it is highly recommended to read the settings description wiki page in order to properly tune the mod to your configuration

Project description from Modrinth.

Pick your setup

Server Heater by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

55 available setups

Showing the newest 12 of 39 game versions. Older files are in the list below.

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Server Heater versions and loaders

5 of 16 releases match
Clear filters

Looking for an older file? The official Modrinth project page is in Resources.