In some systems, a "Rh" and "Rc" terminal exist for different stages of heating or cooling; for simplicity, connecting "Rh" to "W" is usually sufficient for basic heat-only applications. Turn off the power to your HVAC system at the circuit breaker to prevent accidental activation while working.
Honeywell Thermostat Heat Stage 1 Setup Guide
For weekends, you might prefer a consistent, comfortable temperature. Additionally, set the fan to "Auto" so it runs only when the furnace is active.
Once the connections are verified, replace the thermostat cover and restore power at the breaker. If these wires are not connected to the correct terminals, the heating function will not operate, regardless of the settings on the display.
Honeywell Thermostat Heat Stage 1 Setup for Efficient Heating
Setting your Honeywell thermostat for heat is the foundational step toward consistent comfort and efficient energy use. The exact steps can vary depending on whether you own a classic Mercury switch model, a digital programmable unit, or a modern smart device.
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