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How do I determine what furnace filter MERV rating is best for my furnace??

How do I determine what furnace filter MERV rating is best for my furnace??

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Old 03-08-11, 03:00 AM
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How do I determine what furnace filter MERV rating is best for my furnace??

Obviously I want the best filtration, but I know not to go with a filter with too high of a MERV rating as it may restrict my furnace too much. How would i determine that?? Would there be a recommended filter rating to use for my furnace by the furnace manufacturer, (by make and model)? I moved into a home with no paperwork on the furnace, and the filters that were in it were electrostatic type, and they were torn, so I replaced them with pleated. I went safe and used a MERV filter of 4. I have asthma, and would thus like to filter as many allergens as possible, thus my desire to know how to determine how high of a MERV i can go without restricting my system.

Any thoughts greatly appreciated!!

Visser
 
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Old 03-08-11, 04:15 AM
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merv 6-8 in the 1 inch form you can go as high as merv 16 in the 4 inch form
 
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