7 DY PROGRAM THERMOSTAT
7 DY PROGRAM THERMOSTAT
Model# RTH221B1039/E1$34.99
Honeywell 1-Week Programmable Digital Thermostat Honeywell International RTH221B1039/E1
5 in stock (can be backordered)
Product Details
Product Description
Digital 2 heat/1 cool. 1 week programming with 4 periods per day. For use with central gas, oil, or electric furnaces and A/C. For millivolt systems. For heat pumps without aux heat. Precise temperature control (+/-1 degree). Easy-to-install.