Honeywell Thermostats

Honeywell
1-Week Programmable RTH221B1039 Thermostat

Basic operation. Precise temperature control. Sleek one-piece design.

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Product Features

- Simple Programming - One program runs for the entire week (4 periods per day)

- Easy-To-Use - Basic operation keeps programming easy

- Works with low volt heating/cooling systems including millivolt & single-stage heat pumps without auxiliary heat

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

- 1 Year Limited Warranty