How to convert a household thermostat for use on a portable space heater?
I know it's a bit overkill, but I only need to heat one room and space heaters are so inaccurate. I want to use a $30 standard external household thermostat to ensure a constant temperature in my room. Several people told me, "It can't be done",
You can do this by using a residential electric heat thermostat. Match the amp rating for the t-stat to the amp draw of the heater. Go to Lowes, Ace, Tru-Value, or you local hdw store and tell them you need a "line voltage" t-stat. Some mfgrs.
reports theaverage household spends more than $2,200 a year on energy bills. You can save on average $200 a year by using a 
Start-up EcoFactor offers residents of the Dallas-Fort Worth area the option to regulate household climate using weather predictions, as well as a home's thermal characteristics.
Service Experts' Earth Day program will create the same environmental effect as planting 330 trees for every single homeowner who makes one small household change. Service Experts will install a free programmable thermostat to every U.S. and Canadian household that schedules a heating or cooling tune-up during the month of April.
Programmable thermostats are designed to reduce heat transfer and save energy by changing household temperatures on a set schedule.