Heating and cooling ultimately determines the comfort of a home. Learn how to troubleshoot heating and cooling and how to fix and maintain HVAC systems.

The Ultimate Cleaning Home Air Filters Quiz

It's essential to routinely replace your air filters to maintain good air quality in your home and to protect your heating system. The variety of choices of air filters in large hardware stores can be overwhelming. Take this quiz and find the right air filter for your needs.

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  • How Coal Stoves Work

    How Coal Stoves Work

    As with most utilities around the house, the cost of heating a home is getting more expensive. But an old staple can be used to heat your home -- for less money than more modern heating options. See more »

  • How Electric Fireplaces Work

    How Electric Fireplaces Work

    Wood-burning fireplaces are great. What's cozier than snuggling up in front of a warm, crackling fire? But they're also a lot of work. Is there an easier alternative? See more »

  • How Exterior Insulation and Finish Systems Work

    How Exterior Insulation and Finish Systems Work

    If you haven't heard of exterior insulation before, chances are you've seen it without knowing it. But what makes it different from interior insulation (besides where it's located)? And what does it have to do with post-World War II Germany? See more »

  • How Fireplaces Work

    How Fireplaces Work

    With all of the parts involved, fireplaces can lose more heat than they provide. However, there are tools, tricks and green options so you can enjoy the look and warmth of a traditional fireplace. See more »

  • How Heat Pumps Work

    How Heat Pumps Work

    Heat pumps use a small amount of energy to move heat from one place to another. They serve a dual purpose -- they can use that heat transfer to cool a home as well. See more »

  • How Icynene Works

    How Icynene Works

    Structural loss of heating and air conditioning can be a major expense for any home or business. Learn about an insulation material called Icynene, and see how it compares to traditional insulation methods. See more »

  • How Infrared Heaters Work

    How Infrared Heaters Work

    Infrared light isn't visible because it's beyond the spectrum we can see. That's the gist of an infrared heater -- the heat is a product of light that is invisible to our eyes. See more »

  • How Insulated Curtains Work

    How Insulated Curtains Work

    If you use electricity to heat and cool your home, some of your money probably goes right out the windows when you pay your bill. Insulated curtains help you costs down by keeping heat in -- or out. See more »

  • How Off-peak Cooling Systems Work

    How Off-peak Cooling Systems Work

    Off-peak cooling is a new innovation that uses electricity to produce blocks of ice at night when demand is low. But how does the air stay cool enough to provide relief at the hottest time of day? See more »

  • How Swamp Coolers Work

    How Swamp Coolers Work

    If your air conditioner is causing your energy bills to rise, you might want to consider an alternative -- swamp coolers. What's the principle behind swamp coolers, and what do they have to do with Benjamin Franklin? See more »

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