Category: hvac
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How to duty cycle HVAC zones with Home Assistant
Here is a handy script that can help with automating your zone duty cycle, for this you will need to set up a slider card, and have your…
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ESP32 Flashing Cheat Sheet
Practical commands for flashing and recovering ESP32 boards in this repo on Windows. Tool Check On this machine, ESPHome is available via python -m esphome and esptool via python -m esptool. Checked locally on 2026-03-21: ESPHome 2025.12.2, esptool…
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Register your interest in our esp home v3 in wall smart zone controller.
[Update!] the zone controller can now be pre ordered! 4 zone wall controller. A direct swap for these wall controllers, allows you to control zones from Home Assistant.…
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How To Re-Flash the TekOnline 7-Zone HVAC Controller From Home Assistant
If your board shows up in Home Assistant as something like esphome-web-6ad244, only exposes one or two generic entities, and no longer behaves like the zone controller, it is…
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Well that is a little more than usual 😅
Just putting this up more of a reminder to my future self. This was from the HVAC Zone Controller and promoting it on the Facebook Home Assistant group.…
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ESPHome 7-Zone HVAC Controller – Smart 24VAC Zone Control for Home Assistant
TL:DR – You can get it here 🥳 Its been way too long in the making. But its finally done (well…maybe a few small tweaks left!) One of…
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Zone Control (7 Zones) – Open-Source ESPHome HVAC Controller
Zone Control (7 Zones) Open-source HVAC zone control for real homes and real automation stacks. Built on ESPHome and designed for Home Assistant, this controller gives you local-first…
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Installer Perspective: Deploying Open HVAC Zone Control Without the Usual Pain
Integrators and installers keep asking the same question: “Can open-source HVAC control be deployed reliably for real clients?” Short answer: yes, if you package it correctly. At TekOnline,…
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How We Built a 7-Zone HVAC Controller with ESPHome
The 7-zone controller is now running, and this post walks through the build direction we took at TekOnline. The goal was simple: create a zone control platform that…
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Open-Source HVAC Zoning vs Closed Systems: What Actually Matters
Open-Source HVAC Zoning vs Closed Systems: What Actually Matters If you are automating your home or client projects in 2026, HVAC control is one of the biggest decisions…