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Programmable Thermostats

1-Week Programmable

1-Week Programmable Thermostat - RTH221B

Basic operation
Precise temperature control
Sleek one-piece design

Available to purchase in a retail or "big box" store to install yourself


See details

DETAILSMANUALSVIDEOS/DEMOS
Simple Programming - One program runs for the entire week (4 periods per day)
Energy Savings - Program to save up to 33 percent on annual heating and cooling costs (if used as directed, savings may vary depending on geographic region and usage)
Easy-To-Use - Basic operation keeps programming easy
Works with heating and cooling systems
Does not work with heat pump systems or electric baseboard heat (120-240V)
Model Numbers - RTH221B
1-Year Warranty
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1-Week Programmable Thermostat - RTH221B1021

Basic operation
Precise temperature control
Sleek one-piece design

Available to purchase in a retail or "big box" store to install yourself


See details

DETAILSMANUALSVIDEOS/DEMOS
Simple Programming - One program runs for the entire week (4 periods per day)
Energy Savings - Program to save up to 33 percent on annual heating and cooling costs (if used as directed, savings may vary depending on geographic region and usage)
Easy-To-Use - Basic operation keeps programming easy
Works with heating and cooling systems
Does not work with heat pump systems or electric baseboard heat (120-240V)
Model Numbers - RTH221B1021
1-Year Warranty
More

1-Week Programmable Thermostat - RTH221B1039

Basic operation
Precise temperature control
Sleek one-piece design

Available to purchase in a retail or "big box" store to install yourself


See details

DETAILSMANUALS
Simple Programming - One program runs for the entire week (4 periods per day)
Energy Savings - Program to save up to 33 percent on annual heating and cooling costs (if used as directed, savings may vary depending on geographic region and usage)
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
More

1-Week Programmable Thermostat - RTHL221B

Basic operation
Precise temperature control
Sleek one-piece design

Available to purchase in a retail or "big box" store to install yourself


See details
DETAILSMANUALS
Simple programming - One program runs for the entire week with 4 program periods per day
Energy savings - Program to save up to 33% on annual heating and cooling costs (if used as directed. Savings may vary depending on geographic region and usage)
Easy to use - Basic operation keeps programming easy
Precise temperature control of +/-1°F to maximize comfort
Display Options - °C or °F temperature - 12 or 24 hour clock
Compatible with heating and cooling systems
Does not work with multi-stage heating/cooling, heat pump systems or electric baseboard heat (120-240V)
Model - RTHL221B
1-Year Warranty
More

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