Is it OK to use a smaller furnace filter?
The filter can be sucked into the ventilation if it is much smaller than it should be. … The filter will be unable to protect your AC/HVAC unit and the unfiltered air will collect on internal components of your system, such as the coil and fan, which can lead to expensive repairs.
What happens if you use the wrong size air filter?
Using the wrong size air filter won’t necessarily damage your HVAC system, at least not immediately. … Using the wrong size reduces the efficiency of your heating and cooling system. This can quickly add up and becomes more of an apparent issue you’ll likely notice on your next utility bill.
What happens if your furnace filter is too big?
If you purchase a filter that’s too large, it won’t slide into the slot correctly. If the filter is too small, it won’t cover the entire space and may allow dust and dirt to flow past.
Can I use a 1 inch filter instead of 4?
Question: Can i use a 1 inch filter instead of 4 inches? Answer: If you are okay with more frequent replacement and little stress on the system, 1” filter can be budget-friendly alternative of 4” filters.
Can I use a thicker furnace filter?
The general best practice is to use the thickest air filter you can for maximum efficiency. … Higher MERV ratings work best when the filter is 4” thick or thicker because they trap extremely small particles, which means contaminants will build up quickly on the screen.
Can I use 2 filters in my furnace?
Bottom Line: Putting two filters will not make it last longer but may make you have to replace it earlier, assuming it doesn’t already reduce air flow too much with just the filters.
Can my furnace handle a MERV 13 filter?
The ideal MERV filters for both air filtering and furnace efficiency are 7-13, experts say. These filters can be used without any modifications to your equipment. Your system may handle MERV 14-16 with no discernable stress. However, many residential systems require modifications to pull air through these filters.
Should a furnace filter fit tight?
How tight should a Furnace Filter fit? When you remove the existing filter, take note of the dimensions printed on its frame. Your new filter will need to match this size for the system to run efficiently. It should fit snugly but not so tight that you can‘t easily slide the filter in and out.
What size filter does my furnace need?
Furnace filters are sized by width, length and thickness. The size on the filter is usually expressed in inches (example: 16″x20″x1″). A filter that is the wrong size will typically not fit, or may not stay in place, once installed. The owner’s manual for your furnace should tell you what size you need.