Honeywell RTH221B1039 Retail 1-Week Programmable Thermostat
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Honeywell RTH221B1039 1-Week Programmable Thermostat
Easy to use thermostat for low voltage heating/cooling systems
Our 1-Week Programmable Thermostat is easy to use and compatible with low volt heating/cooling system, including millivolt and single-stage heat pumps without auxiliary heat. It features simple programming. Just program the entire week. If necessary, you can also program up to four periods per day like sleep, wake, leave and return.
Features
Simple programming (one program for entire week, plus four periods per day)
Easy to use
Precise temperature control
Sleek one-piece design
DIY installation