The thermostat tries to control the heating and cooling in you home to maintain a comfortable or energy efficient temperature.
On will turn the fan or blower on continuously and auto setting will kick off and on according to the temperature setting on the thermostat.
The temperature at which you are comfortable. If your question involves money-saving, then contact your local power company to determine the best setting.
Yes your compressor comes when you set your thermostat to "Fan" setting and you have it on cool setting.
check you thermostat for the temp setting
A person can tell if their home heat pump thermostat is working by setting the temperature a few degrees above or below ambient to see if it kicks on. A thermometer can be used to verify the temperature.
No, not if it's on a heat setting. Most home thermostats have a "Fan" setting that will blow cold air if the attic is cold.
Any electrician in your local directory or good diy enthusiast should be able to replace any thermostat in your home, be it part of a central heating system or household appliance.
One reason your home electric heater is blowing cold air is the heating elements are burned out. A bad thermostat may also be the problem.
For basic settings, and best results, set your temp. for cooling at about 75 degrees F. or at the highest possible temp. that you can and still be comfortable. The same is true for the temp. setting for heating mode except in reverse. For heating, about 68 to 70 degrees is normal or the lowest temp. possible. This will allow your A/C to run less and operate more efficiently.
Home heating oil can be purchased through a home heating oil company. To find home heating oil, find a local home heating oil in your area and contact them to find out more information on purchasing home heating oil.
Thermostats can be bought at home improvements stores such as Home Depot and Lowes. Sites such as Amazon and Ebay will also sell them. Online retailers will usually have better prices.