Honeywell RTH221B 1000/A RTH221 Series Rth221b1021 Og Programmable Thermostat, 24 Volt, 40 to 99 Degree Fahrenheit Control, Digital Display, White
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Key Features
- Simple programming, one program for entire week, plus four periods per day
- Easy to use
- Basic operation, DIY installation
- Precise temperature control
- Sleek one-piece design
- This thermostat is compatible with heating/cooling systems
Thermostats basic - programmable heat/cooling Precise temperature control, sleek one-piece design. Simple Programming - One program runs for the entire week (4 periods). Energy Savings - Program to save up to 33 percent on annual heating and cooling costs (if used as directed, savings may vary depe nding on geographic region and usage)per day). Basic operation keeps programming easy. Works with heating and cooling systems. Does not work with heat pump systems or electric baseboard heat (120-240V).