Furnace filters
Changing or cleaning your furnace filter is one of the easiest things you can do to prolong the life of your heating and air conditioning system.
Geothermal
Capturing the heat from the earth can save you big money on your energy bills. Learn how geothermal systems work.
Geothermal 101
In this video: Find out how a geothermal system works, what it can cost and how you can install one in your home.
More from this category
Sealing ductwork
Leaky ductwork is one of the most common household problems. Luckily, it's easy to fix with the right materials.
Options for heating your home
Shop and compare when choosing a new heating system. Look for the yellow Energy Guide label to see how one unit stacks up against another.
Maintaining your fireplace
Proper maintenance of your fireplace is important to make sure it's working efficiently and safely.
Heating and cooling older homes
Don't be scared of an older heating or cooling system. Systems can be inspected or retrofit to maintain the integrity of your older home.
Learning thermostats
Discover how the next generation of smart thermostats adjust your home’s temperature based on your behavior and weather forecasts.
Ductless mini-split system
A ductless mini-split system provides heating and air conditioning to spaces where a traditional ducted system won't work.
Radiant floor heating
Heating from the floor is comfortable and very energy efficient. See how it's installed and how it works.
Space heating and furnace myths
There are lots of "tips" out there that may not be true or safe. Find out how to separate facts from fiction.