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Water, Wall Heaters & Air Conditioners → Honeywell Residential Thermostats → Honeywell Thermostat - RTH221B
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Honeywell Thermostat - RTH221B
Honeywell Thermostat RTH221B
- Simply Programming - one program for the entire week, up to 4 periods per day.
- Precise temperature control of +/-1 Degree Fahrenheit for consistent comfort.
- Compatible with heating, cooling and heat pump without auxiliary heat.
- Does not work with electric baseboard heat (120-240V) multistage HVAC systems.
- Easy to read digital display - Fahrenheit or Celsius temperature, 12 or 24 hour clock