Andreas Belitz
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Tagged: home-assistant

All 3D Printing & Making LLM Patterns AI Engineering Tools & Workflow Career & Thinking Infrastructure
The Boiler Project — and the context engineering that made it work
Jul 20, 2026 · 13 min read · 3D Printing & Making

The Boiler Project — and the context engineering that made it work

A Home Assistant optimisation that turns a hot-water tank into the most valuable battery in the house — and, just as much, a worked example of how deliberate context management tur...

home-assistant making context-management self-hosting energy automation
Mining Bitcoin in my hallway — and the home automation that decides when to do it
May 5, 2026 · 13 min read · 3D Printing & Making

Mining Bitcoin in my hallway — and the home automation that decides when to do it

A 21energy Ofen 2 sits in my hallway — heating the air and hashing Bitcoin. This is the Home Assistant logic that decides when, why, and at what tier.

bitcoin home-assistant mining energy automation sweden
Hacking the Heat: Retrofitting Adax Heaters with ESPHome and Custom PCBs
Feb 12, 2026 · 8 min read · 3D Printing & Making

Hacking the Heat: Retrofitting Adax Heaters with ESPHome and Custom PCBs

A multi-phase journey from cloud-dependent heating to fully local, custom-hardware control.

esphome home-assistant pcb-design esp32 adax smart-home

© 2026 Andreas Belitz v:1ed2117

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