Quick Answer: What MERV Rating Can My Furnace Handle?

What is my furnace MERV rating?

Higher rated filters allow less air to flow through though and can force your furnace to work harder and possibly malfunction.

A MERV rating between eight and 11 is adequate for most homes..

What MERV rating can my HVAC handle?

Wrong. While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system….Learn how to maintain your. home and HVAC this fall.MERVMinimum Particle Size5–810.0–3.0 μm9–123.0–1.0 μm13–161.0–0.3 μm17–20< 0.3 μm1 more row•Sep 20, 2019

Can my furnace handle MERV 11?

Higher rated filters allow less air to flow through though and can force your furnace to work harder and possibly malfunction. A MERV rating between eight and 11 is adequate for most homes. To be safe, you should check if your furnace manufacturer has a maximum MERV rating your model of furnace can use.

Does MERV 11 restrict airflow?

Be aware, too, that some retailers also use their own rating system instead of MERV. A decade ago, it used to be that if you had an HVAC system that used panel filters rated 6 through 9 MERV, putting in a MERV 11 or higher filter would restrict airflow (known as filter pressure drop).

What MERV rating should I use in my house?

8As a general rule, residences do not use higher than MERV 8 filters. We do recommend that everyone uses filters that have at least an 8 MERV rating. These filters will remove the majority of pollutants from your indoor air.

Is MERV 8 good enough?

MERV 5–8 (good): These filters are better at catching small particles (3–10 microns) like mold spores, hair spray, dust mites and animal dander. MERV 9–12 (better): The best option for residential use. … Particles this small include bacteria, tobacco smoke and even the contaminants in sneezes.

What MERV rating does Trane recommend?

MERV-13ASHRAE recommends upgrading air filters to MERV-13, or higher if possible.

Are MERV 13 filters bad for HVAC?

Here’s the problem: Some filters with a high MERV rating can drop air pressure in your duct system, which can increase energy bills and damage your HVAC system. For example, let’s say you have a pleated filter that’s 1-inch thick and has a 13 MERV rating. … And like we said before: low airflow = wasting energy.

Is MERV 11 or 13 better?

For most household uses, the highest MERV rating used will be MERV 13 filters. … “The MERV 11 air filters remove a higher percentage of contaminants in the air that will increase indoor air quality and maintain the efficiency of the HVAC unit.

What is the lowest MERV rating?

MERV 6MERV 6 is the lowest MERV rating offered by AirFilters.com. Though not recommended for allergy and asthma sufferers, filters with a MERV 6 rating are 8 times more efficient than the regular cheap fiberglass filters.

Is MERV 12 better than MERV 11?

Luckily, MERV 11-rated filters handle those particles — such as pet hair and dust mites — with ease. … MERV 12 filters trap 80 to 89 percent of average particles of 1.0 to 3.0 microns, with an average particle size efficiency of 90 percent or better. As you can see, they’re pretty close.

Are high MERV filters bad for furnace?

Most modern HVAC systems have no problem working with higher MERV filters. If your home has a very old HVAC system, or you use a higher MERV filter and never change it, you could run into airflow problems, but under normal circumstances, you won’t be stressing out your HVAC system that much with a higher MERV filter.

What MERV rating is filtrete 1500?

3M Filtrete 1″ Air Filters Comparison Chart:Basic DustUltra AllergenAvailable in:9 sizes30 sizes* MPR Rating:3001500MERV Rating:512** Efficiency:34%90%5 more rows

Are cheap furnace filters better?

Cheap fiberglass filters are designed to stop dust, debris and hair from gunking up the system. While they do little to filter out allergens and other irritants, using them keeps your HVAC system clean and efficient. … They can add more resistance to airflow, which makes the system more expensive to operate.

Is a 2 inch filter better than a 1 inch?

1″ filters suck. They block a lot of air flow. 2 inch is the smallest I put in, and 4″ is optimal. Sure it filters, but it doesn’t have enough surface area to allow the airflow a system needs.

Will MERV 13 hurt my furnace?

In some cases, using an air filter that is too restrictive for your system may cause low air flow problems as well. MERV 13 is the highest MERV value safe for residential furnaces; the higher ratings are used primarily in commercial units.

What is the best air filter for your home?

So here is my list of The 10 Best Furnace Filters.AIRx Health 1″ MERV 13 Furnace Filters. … Honeywell FC100A1037 Ultra Efficiency 4″ Furnace Filters. … Nordic Pure 4″ Furnace Filters. … FilterBuy 1″ Furnace Filters. … AIRx ALLERGY 1″ Furnace Filters. … Filtrete Micro Allergen 4″ Furnace Filters. … X6673 Lennox 4″ Furnace Filters. … Filtrete Clean Living 1″ Furnace Filters.More items…•

Are expensive furnace filters worth it?

More expensive filters like Pleated Residential filters filter out dust mites, pollen, mold and pet dander and even bacteria and so are worth the money especially for those with severe allergies. HEPA filters filter bacteria and viruses and are worth the extra money for those with respiratory conditions like emphysema.