🚀 Getting Started

Install ThermX, verify system requirements, and get your first model running in minutes.

System Requirements

Component	Minimum	Recommended
OS	Windows 10, macOS 12, Ubuntu 20.04	Windows 11, macOS 14, Ubuntu 22.04+
RAM	4 GB	8 GB or more
Disk	~4 MB (installer)	Any SSD
GPU	Optional — any integrated GPU	Vulkan / Metal / DX12 capable GPU
Browser	Chrome 113+, Edge 113+	Latest Chrome or Edge (WebGPU)

Tip

A discrete GPU with Vulkan, Metal, or DirectX 12 support enables the GPU-accelerated solver, which is significantly faster for large or complex models.

Download & Install

Choose your platform below. All downloads are free. A license activation will be required for premium features when they launch.

Windows

Download ThermX-Setup.msi
Double-click the installer and follow the prompts
Launch ThermX from the Start menu or desktop shortcut

macOS

Download ThermX.dmg
Open the .dmg and drag ThermX to your Applications folder
On first launch, right-click → Open if macOS shows a security warning

Note

The macOS build is Apple Silicon native (arm64). On Intel Macs, use the browser version (Chrome/Edge) instead.

Linux

Download thermx_1.5.0_amd64.deb
Install with: sudo dpkg -i thermx_*.deb
Launch with: thermx or from your application launcher

Running in a Browser

ThermX also runs entirely in the browser — no installation needed. Visit thermx.modeltok.com in Chrome or Edge for the best experience. Firefox is supported but WebGPU acceleration may not be available.

Browser vs Desktop

The browser version is fully functional except for DWG file import (requires LibreDWG, desktop only) and native file dialogs. All other features — including WebGPU GPU solving — work in the browser.

First Launch

When ThermX opens, you'll see the main canvas with an empty project. Here's how to get oriented:

Interface overview

Left panel — Tools and geometry properties. Toggle with [
Right panel — Materials, boundary conditions, mesh settings. Toggle with ]
Canvas — Your drawing area. Pan with Space+Drag, zoom with scroll wheel
Toolbar — Draw tools: Select (V), Polygon (P), Rectangle (R)
Tabs — Switch between Model and Sheets tabs at the top

Try an example file

ThermX ships with several built-in example files: wall sections, window frames, thermal bridges, and CMA details. Open one from File → Open Example to explore the workflow.

Typical workflow

Draw geometry — Use the Polygon or Rectangle tool to sketch your cross-section
Assign materials — Select each region and pick a material from the right panel
Set boundary conditions — Select edges and assign convective or fixed-temperature BCs
Mesh — Click "Generate Mesh" and adjust quality sliders as needed
Solve — Click "Solve" — ThermX auto-selects the best solver
Analyze results — View temperature maps, isotherms, U-factor, PSI, fRsi

Platform Feature Comparison

Feature	Browser	Desktop (Tauri)
Meshing (WASM)	✅	✅
CPU solver	✅ Web Worker	✅ Web Worker
GPU solver	✅ WebGPU	✅ wgpu native
DWG import	❌	✅ LibreDWG
Native file dialogs	❌ Browser download	✅
THMX read/write	✅	✅
DXF import/export	✅	✅