Comment by atm3ga
2 days ago
>Do NOT use this firmware on any thermostat that is critical for your heating or cooling needs.
Also, carefully consider its use with propane or natural gas HVAC units. Many can reach dangerous temperatures very quickly. Many years ago we had a thermostat failure that caused our HVAC to not shut off. While it had an over-heat cut-out, it was for temps above 200F. Because the unit had an oversized blower, it caused our home to reach dangerous temps as we slept, including our kids room which was a good 20F hotter than our bedroom. Luckily we woke up and the kids were okay.
That's just a disclaimer. The same could be said of the original ;-)
No "smart" thermostats for me --- I have a round Honeywell that's been working perfectly for several decades.