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
Fix leaky ductwork
Leaks in your ductwork mean the air you've paid to heat or cool is not getting where it needs to go. Find out how to diagnose and fix this common problem.
Whole house fans
A whole-house fan, also known as an attic fan, provides great ventilation, lowers indoor temperatures and summer electric bills.
Learning thermostats
Discover how the next generation of smart thermostats adjust your home’s temperature based on your behavior and weather forecasts.
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.
Getting a new fireplace
Is it time to upgrade your fireplace? Learn how you can improve your home's efficiency with the right fireplace.
Ceiling fans
A cooling breeze can reduce your need for air conditioning.There are some important things to know about purchasing and installing ceiling fans.
Installing a heating and cooling system
One of the biggest purchases a homeowner can make is to install a new furnace and air conditioner. Learn what you need to know when faced with this big decision.
Maintaining your furnace
It's important to keep this big piece of equipment in tip-top shape in order for it to operate at peak efficiency.