All Energy Star approved programmable thermostats can help you save money on your heating bills in the winter and your cooling bills in the summer. However, you can only make these savings by using your programmable thermostat correctly. If you buy a cheap Honeywell RTH8500D 7-Day Programmable Thermostat you can expect to reduce your bills by 30% over the year. Here are guidelines to help you achieve this.
The first thing to do is to correctly install the Honeywell RTH8500D programmable thermostat. Follow the instructions provided carefully. There is a helpline you can call if you think you have made an error in installation. 99 times out of 100 it is easy to install the Honeywell RTH8500D yourself. When talking to someone on a helpline be sure to know what type of HVAC system is in your house.
Once installed, the most important thing to do is to set your Honeywell RTH8500D programs correctly. There is a program slot for every day of the week. And within each day of the week you have 4 time periods to set – morning, afternoon, evening and night.
Firstly, set the morning start period for when you wake up. Don’t be tempted to set this time before you wake up thinking that you should pre-heat or pre-cool your house for comfort. The Honeywell RTH8500D has smart response or adaptive intelligence which means that it knows how long it takes to heat or cool your house and will automatically come on early to pre-heat or pre-cool to make sure the house is exactly the temperature you want at the start point of your ‘morning’ period. The Energy Star recommended wake up temperature is 70 degrees Fahrenheit (21 degrees Celsius) in winter and 78 degrees Fahrenheit (25 degrees Celsius) in summer. For every degree you add in winter or reduce in summer you are adding dollars to your energy bills. It is foolish to wear shorts in the winter inside and sweaters in the summer inside. Dressing appropriately not only accustoms you better to the moment you step outside but also reduces carbon emissions and saves you money.
While you are at work (‘afternoon’ setting) you should reduce the temperature by 8 degrees Fahrenheit (5 degrees Celsius) in the winter and in summer you should increase the setting by 7 degrees Fahrenheit (4 degrees Celsius).
Set the ‘evening’ period to begin at the time you get back from work. These settings should be the same as your wake up morning settings.
Finally, set the ‘night’ period to begin when you usually go to bed. For the night settings you should reduce the temperature by 8 degrees Fahrenheit (5 degrees Celsius) in the winter and in the summer increase the temperature by 4 degrees Fahrenheit (2 degrees Celsius).
By sticking to these guidelines as much as possible you will be happy at the end of every month or quarter when your heating/cooling bill comes. Don’t crank up or crank down the thermostat thinking this will heat or cool the room quicker and don’t leave the thermostat on hold. The Honeywell RTH8500D is a precision instrument and these tactics don’t speed up heating or cooling, they just cost you money.
Author: Energy Star
Page Title: http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=TH