HVAC_Monitor VS BOINCThermostat

4.) i do not have my thermostat connected to the internet and instead made my own arduino status and logging device so i do not need the cloud https://github.com/wallacebrf/HVAC_Monitor

This means that crunching in winter, depending on your setup, may be low cost or even free. If you have electric resistive heating in your home (space heaters, baseboards, ceiling/floor heat), it is equally efficient to heat your room with a computer. As long as your thermostat is turning on the heat regularly, you are not spending any money on crunching if you assume you'd have to pay for the heat anyways. Your thermostat just has to spend 90W less to get your space to the same temperature. There's even a tool to control BOINC based on room temperature.

Yes, and I even wrote a python script to help with it. In winter, 100% of my indoor heating comes from BOINC and folding @ home. My rigs start/stop their BOINC work based on ambient air temp.

I even wrote a script to control mining based on data from a smart thermostat so you can set the room to a particular temp https://github.com/makeasnek/BOINCThermostat

Welcome back to BOINC :). The 5% processing power is only if you use FTM to control boinc, if you just want to see pretty stats and have it suggest project weights, that is free. If you only want the temp control function, I have a separate tool for that which has no dev fee and works the same: https://github.com/makeasnek/BOINCThermostat

GRC crunching thermostat. https://github.com/makeasnek/BOINCThermostat