To get the most bang from your HVAC buck, use these general energy-saving tips. They’ll help you support your system and save energy around the house.
Get a programmable thermostat.
It’s easier to save energy with a programmable thermostat than a regular one because you don’t have to think about it each time you want to change the temperature. You pre-program your settings so that the thermostat raises the temperature while you’re at work and asleep, and kicks on the air conditioning when you’re at home and awake. With “smart” programmable thermostats, you can even control the temperature from your smartphone.
Seal your heating/cooling ducts and any open spaces.
Make sure doors, windows, and nooks and crannies are shut and properly sealed. The less cool air that escapes your home, the less energy you’ll waste, and more comfortable you’ll be.
Set your thermostat to your ideal temperature (not any colder).
Setting the air conditioner to a colder-than-desired temperature doesn’t cool down your house any quicker – it just keeps the unit working longer than necessary. So, set it to where you want it. And remember: You save up to 1% on your yearly cooling bill every time you raise the temperature by one degree for a period of eight hours. So, set it to around 78° – after all, it is summer! Source: