The Electric heat LINE VOLTAGE TL7235A 1003 by Honeywell is the #1 Choice of Homeowners — Honeywell is the leading brand in temperature control.Electronic Temperature Control — Precision of ± 1°F saves up to 10%* on heating bill.Maintenance Free — No batteries required.Peace of Mind — On/Off switch allows you to turn the thermostat off at the end of the heating season.On-Demand Backlight — Easy to read in various lighting conditions.Heating Indicator — At-a-glance confirmation that the heat is on.Soundproofed for Quiet Operation — Reduces the clicking noise commonly heard with conventional thermostats.5-Year Limited Warranty*If used as directed, electronic thermostats can save up to 10% on annual heating costs. Savings may vary based on geographic region and usage.