Which Way Does Furnace Air Filter Go

Furnace Filters. It's piece of cake to forget about them quietly working away, keeping your furnace clog free and air quality clean.

Yes, easy to forget about and and then, suddenly information technology'south fourth dimension to alter them and, oh love… Then. Many. Questions.

Yep, at CleanAlert we frequently get asked virtually Furnace Filters, and if you lot inquire united states, the simply stupid question is the i that goes unasked. So, we thought we put all your questions (and answers you tin trust) in i piece of cake to detect place. Now you never demand worry well-nigh the furnace filter direction again. You're welcome!

Which Mode Does Furnace Air Flow?

Forced air furnaces recirculate air through a domicile: pushing air (cool or heated) in, and pulling spent air dorsum in for some other cycle. So, air flows from your ducts, through the filter, and into the furnace.

What'south The Correct Furnace Filter Direction?

If you are looking at a furnace filter, observe the arrow that indicates the proper air flow direction. That arrow must always face toward the furnace and abroad from the render duct that carries the air in demand of heating or cooling.

How Practice I Install A Furnace Filter?

This is pretty easy once you've found the arrow mentioned to a higher place and inserted it with the arrow facing towards the furnace and abroad from the return duct. Demand more help? Cheque out our handy guide to installing a furnace filter.

What Do Furnace Filter Ratings Mean?

All filters are rated using the Minimum Efficiency Reporting Value, or MERV, scale which goes from one to xx. The United States Environmental Protection Agency recommends air furnace filters with a MERV between 7 and xiii for most homes. Check out this chart to meet exactly what the ratings hateful: MERV Rating Nautical chart and run into below for more details on selecting the right filter for you.

What Are The Best Furnace Filters?

What'due south the best furnace filter? Well, that all depends on how much you want to spend and what you're trying to filter.

You need to exist enlightened of the MERV scale (explained above). A furnace filter with a high rating can deadening airflow also much, but a low-efficiency filter won't filter grit very well. When selecting the filter, it'due south important to strike the right remainder and ALWAYS consult your furnace transmission to see the manufacturer's specifications.

For most homeowners, a MERV 7 or 8 pleated filter provides a skilful residue between cost and filtration efficiency. These filters trap fourscore to 95 pct of the particles five microns and larger—more than than enough for most homes. Even so, if yous have family members with allergies or an impaired an immune system, yous may want to invest in a MERV xi or higher filter. Only be warned, you must modify these filters regularly to protect your furnace.

How Do I Know If My Furnace Filter is Dingy and Needs Replacing?

At that place are a few different ways of checking whether the filter is dirty and needs to be replaced:

Examine your furnace filter advisedly for buildup of dirt, dust and other contaminants. A large buildup can be a sign that it'due south time to supercede your filter.
Listen to the sound of air moving through your furnace. If you remove the filter and at that place is a meaning release of air pressure, this ways the buildup of grit and dirt has reduced the effectiveness of the filter. Information technology should be replaced.
Keep an middle on the amount of dust and dirt building up in your habitation over a prepare period. If yous notice an increase in the amount of dust and clay on article of furniture and other household items, it may be fourth dimension to change the filter.
The easiest and most reliable way of telling whether your filter is dirty and needs to be replaced is installing a filter monitoring arrangement similar FilterScan Wifi. This provides automatic monitoring of your filter system and alerts you when information technology'south time for a replacement. Using FilterScan Wifi means y'all won't ever miss changing the filter when it's necessary to avert harm or low air quality, nor will yous waste money on irresolute a filter that is nonetheless working finer.