ECOBEE4 THERMOSTAT WIRING DIAGRAM
Thermostat C Wire: Everything you need to know about the
Oct 25, 2014Back in the olden days, thermostats were simple on/off devices that didn't need their own continuous power supply. Modern thermostats with Wi-Fi and backlit display, by contrast, need a steady supply of juice C wire, or "common wire" enables the continuous flow of 24 VAC power to the thermo
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Ecobee4 wiring help - Common wire at furnace, no common
Unfortunately, my place is made of pre-fab concrete blocks so rewiring with new thermostat wiring with a C wire isn't really feasible and I would like to avoid that. I bought an ecobee4 and I think that with the PEK I can get this to work. Here is what the wiring looks like currently at my thermostat looks like.