A Honeywell 7 Day Programmable Thermostat is approximately $119.00 at home improvement stores such as Lowes or Home Depot. The advantages of a programmable thermostat far outweigh the disadvantage of the price. These even allow you to access them with your smartphone to change the temperature on demand!
Figure $100 or so for a good programmable one that operates heat and cooling.
The User Guide for this product can be found on the Honeywell Thermostat Manual website.
Do not do this.
There are several different places where one can purchase a Honeywell programmable thermostat from. Some of these places include the official Honeywell website, Canadian Tire, and Amazon.
this stands for emergency heat
Honeywell
Ma'am - The Honeywell Thermostat products belong to a different division than the Honeywell division for which distribute products. We have no information on them. The web site for that division is: http://yourhome.honeywell.com/home/products/thermostats/
Em ht stands for emergecy heat.
You can program for 7 days
cool
Disconnect all power sources to your existing thermostat. Remove the cover. Locate wire connecting thermostat and heater. Not the terminal designations. Disconnect wiring to heater. Remove old thermostat from wall. Drill holes for mounting new thermostat. Connect wires. Attach subbase of new thermostat to wall. Connect wires, matching labels. Attach thermostat to subbase.
When Honeywell and Allied Signal merged, Honeywell, Inc. became Honeywell International, Inc.
Honeywell round thermostat-(T87 ) provided you have a 24 volt system. Very basic, been around a long time and works great.