Amazon offers the Honeywell 7-Day Touchscreen Programmable Thermostat (RTH8500D, “C” Wire Required) for $39.99 shipped. Normally closer to $110 at retailers like Home Depot and $80 at Amazon, this is the lowest we’ve tracked by far. Perfect for upgrading from that builders-grade thermostat to a nice 7-day programmable model. Rated 4.1/5 stars.
Honeywell 7-Day Thermostat features:
- Universal Application – works with conventional and heat pump systems up to 2H/2C, it’s one thermostat for nearly every application
- Program is retained in memory in the event of a power outage Includes change reminders for filters and low batteries
- Separate programming for each day of the week – 4 periods per day. To avoid possible compressor damage, do not use auto changeover if the outside temperature drops below 50°F (10°C).
- Maximum comfort – Smart Response technology learns the amount of time a system needs to reach a desired temperature and adjusts accordingly
- Precise temperature control of +/-1 Degree for consistent comfort
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