• One program with 4 program periods per day
• Precise temperature control
• Energy savings up to 33 percent on annual costs
• Works with heating and cooling systems

The Honeywell RTH221B 1000 1-Week Programmable Thermostat offers simple programming which allows you to run one program for the entire week with 4 program periods per day. Program the thermostat to save up to 33 percent on annual heating and cooling costs. It is easy to use and works with heating and cooling systems. Includes one year warranty.

Videos:

Honeywell Thermostats are Easy to Use

Installing a Honeywell Thermostat

Note: Does not work with heat pump systems or electric baseboard heat (120-240V)

• Owner's Manual
• Installation Guide

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