Nest + Pellet Stove + Yurt
summary
Nest thermostat outputs are mapped to a pellet stove high/medium/low switch by an adapter that reads three white wires and implements the truth table with a Karnaugh map reduced logic, realized with electromechanical relays in a small junction box. The build splices the stove control wires, routes them to relay contacts, and works: initial two-week learning is chaotic then stabilizes; anecdotal fuel use drops and temperature control is usable though Nest sometimes shuts down too abruptly and transitions could be faster.
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chapters (13)
- 0:00Introduction
- 1:56Pellet stove and yurt history
- 4:56Nest thermostat problem
- 8:45Mapping Nest to stove
- 11:15Simplifying with Karnaugh maps
- 16:58Relay logic gates
- 21:34Relay control box
- 23:04Wiring and testing
- 24:49Nest performance
- 27:44Improving the system
- 29:52Future TTL project
- 30:14Tools and methods
- 31:20Q&A
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