Furnace filters are an important component of your home's HVAC system, but is it really worth it to splurge on the more ...

Q: I turned on my furnace for the first time this year, and it made the whole house smell musty. I checked the filter and found it caked with dust, so I replaced it with a new filter, and the indoor ...

If you were to let unfiltered air into your furnace, its performance would suffer as dust settled on the heat exchanger and other parts, and that would reduce the service life of your most important ...

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Our recent article about energy-recovery ventilators (Ventilate Your Home with Minimal Energy Loss) stated that using a “true high-efficiency particulate air (HEPA) filter” in your forced-air heating ...

Skipping the manufacturer's instructions during installation may result in a furnace that fails within six months or less. For example, heat exchangers can crack from improper venting, and gas valves ...