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This product was designed by DIY store.
By buying this product you support original hardware creators.
Wall mount for the Hot Water Circulation PCB
Give your HotCirc controller a proper home. This enclosure turns the round display module and the HotCirc interface board into a tidy unit that sits flat on the wall next to your hot water tank or circulation pump.
The enclosure consists of two printed parts. The base plate carries the interface board and the display module, both fixed with screws on four integrated standoffs. Three holes in the 86 mm flange let you screw the base plate directly to the wall. The cover ring is then pushed over the electronics and closes the gap between display and base plate – no glue, no tools. Only the round AMOLED screen stays visible, so the display seems to float on the wall.
Features
- Designed specifically for the HotCirc interface board and the round 1.5" display module (ESP32-S3, 466 × 466 AMOLED, touch and rotary encoder)
- Two-part design: screw-on base plate + push-on cover ring
- Wall mounting with three screw holes in the flange
- Rotary encoder and touchscreen remain fully usable
- Compact footprint: 86 mm flange, 61 mm cover ring
- Lightweight: approx. 27 g of filament for both parts
- Printed in PLA
Specifications
| Part | Size |
|---|---|
| Base plate | Ø 86 mm flange, 11.7 mm high |
| Cover ring | Ø 61.2 mm outside, Ø 53.2 mm inside, 20 mm high |
| Both parts | approx. 27 g filament |
What's included
- 1 × base plate (wall mount)
- 1 × cover ring
- 4 x screws to mount the PCB into the base plate
Not included
- HotCirc interface board – available separately in this shop
- Round display module UEDX46466015 (ESP32-S3)
- DS18B20 temperature sensors, smart plug, USB-C power supply
About HotCirc
HotCirc is a self-learning controller for hot water circulation pumps. Two temperature sensors detect when hot water is drawn, the controller learns your household's daily routine and starts the pump shortly before you need hot water – switched via an ESPHome WiFi smart plug, without touching the 230 V wiring.
Firmware and documentation: github.com/STB3/esphome-hotcirc
Links to code and documentation
Shipping policy
For customisable products (e.g. housing part colour or special firmware versions), I'll ask you to make your choice before shipping.
Orders are shipped via DHL / Deutsche Post – Warenpost Premium (tracked) from Germany.
Processing Time Orders are dispatched within 7 business days of payment confirmation.
Delivery Time Once shipped, delivery typically takes 7–15 business days, depending on your location and local postal services. Please note that this is an estimate and not a guarantee.
Tracking A tracking number will be provided once your order has been handed over to DHL / Deutsche Post.
Customs & Import Duties For shipments outside the European Union, customs fees, import duties, and taxes may apply. These charges are the sole responsibility of the recipient. We have no control over customs processing times, which may cause additional delays beyond the estimated delivery window.
