We review the Honeywell RTH9580WF Smart Thermostat here. Now this thermostat represents a clear advance from the RTH8580WF model, reviewed earlier. On this model, they improved the screen from the green color so common with older thermostats with black lettering. In this model, it’s now a full-color, brighter, higher contrast, LCD display. Honeywell RTH9580WF Smart … Continue reading Honeywell RTH9580WF Smart Thermostat Review