PCT5231 Smart HVAC Thermostat
Smart thermostat with up to 10 remote room sensors
Details
- External ID
- 1245940
- Source
- PH
- Company
- —
- Product
- PCT5231 Smart HVAC Thermostat
- Website domain
- producthunt.com
- Launched
- Sept. 10, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.30815693820825313
- Tags
- Internet of Things, Developer Tools
- Fetched at
- Sept. 11, 2026, 7:31 p.m.
- Updated at
- Sept. 11, 2026, 7:31 p.m.
Description
PCT5231 is a WiFi smart thermostat for North American 24VAC HVAC systems. It supports up to 10 remote room sensors for better multi-room comfort and works with conventional, heat pump and dual fuel systems, including up to 4H/2C heat pump configurations. Features include 7-day scheduling, energy reports, temperature limits and maintenance reminders. Designed for residential, multifamily and light commercial HVAC applications.
Enrichment
- Theme
- open-source hardware and embedded electronics
- Vertical
- Energy & climate
- Function
- Hardware & robotics
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- smart thermostat with remote sensors
- Manually corrected
- False
Could you build this?
No This is physical HVAC smart thermostat hardware involving custom PCB design, 24VAC relays, RF/WiFi radio protocols, and strict electrical safety certifications.
What it would actually take: Developing this product involves electrical engineering for 24VAC HVAC power-stealing circuits and relay switching (supporting 4H/2C stages), custom embedded firmware (e.g., ESP32 or Nordic nRF) managing low-power sub-GHz RF communication with 10 remote room sensors, and hardware certifications like FCC and UL.
Competitors
Other products that read as similar to this one — 37 launches clear the similarity bar, closest 8 shown.
Attention rank: #13 of 38 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 160 days after the earliest competitor.
- PC4713 · ph · 2026-09-12 · 1 upvotes · similarity 0.48
- ThermostatWires · ph · 2026-09-16 · 1 upvotes · similarity 0.46
- Sunline Heat Pumps · ph · 2026-09-14 · 1 upvotes · similarity 0.43
- Domihélie · ph · 2026-09-21 · 3 upvotes · similarity 0.40
- Smart Kablo · ph · 2026-09-10 · 2 upvotes · similarity 0.40
- DWS332 Zigbee Door Sensor · ph · 2026-09-11 · 1 upvotes · similarity 0.40
- Hvac design certification · ph · 2026-09-11 · 1 upvotes · similarity 0.39
- TWS Technology · ph · 2026-09-19 · 1 upvotes · similarity 0.37
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a hardware & robotics tool for Horizontal yet.