ZigBee Controlled Floor Heating Manifold

ZigBee Controlled Floor Heating Manifold

Here's a small DIY project for controlling valves for floor heating.

The whole project used off the shelf parts:

  1. Eight 24 V electric valves (AliExpress).
  2. 24 V power supply (AliExpress).
  3. Zigbee 12 relay board (AliExpress).
  4. Box (https://tme.eu).

There were few adaptations that had to be made.

The adapter shipped with the heating valve was not the right height, one had to be designed and 3D printed using PCTG filament.

Heating valve adapter
Mounted valve adapters

The second part was the mount for the power supply and the ZigBee board inside the case.

3D model with superimposed scans to match holes and size
Final 3D print
Power supply with ZigBee relay board
Mounted and wired in the case
Interface (incomplete) in Home Assistant

Costs:

  1. Electric valves (8 pieces): 80 EUR.
  2. 24V 2.5A 60W power supply: 7 EUR.
  3. ZigBee relay board: 25 EUR.
  4. Box: 15 EUR.