As the filter in your heating and air conditioning system gets dirty, it increases the resistance to air flow. This simple measurement tells you if it's time to change the filter.
Thanks for the video. I didn't know a filter creates that much pressure drop in such a short amount of time. May I ask, how deep is your filter, 1inch, 4inches...?
Congratulations on adding video to the mix! Some of my clients are a perfect fit for your content!! May I ask if one could do a rough version of a pressure drop with a standard probe or is it critical to use a static pressure probe?
I only have filters on my 3 return ducts, how could I measure a new filter since, like you said, i don't want to poke a hole in it. I'd also like to be able to measure intermittently to help determine when i need new filters. Haven't been able to figure this out, thanks!
You have to be able to insert a static pressure probe in the duct on either side of the filter. If it's in a filter grille, as mine are, you just need to measure the duct pressure behind the filter and use the room as your reference pressure.
Thanks for the video. I didn't know a filter creates that much pressure drop in such a short amount of time. May I ask, how deep is your filter, 1inch, 4inches...?
It's 2 inches deep. You get more area of the filter fabric than a 1 inch filter and lower cost than 4 inches or more.
Congratulations on adding video to the mix! Some of my clients are a perfect fit for your content!! May I ask if one could do a rough version of a pressure drop with a standard probe or is it critical to use a static pressure probe?
I'm not sure what you mean by "standard probe," Peter, but static pressure probes don't cost much.
I only have filters on my 3 return ducts, how could I measure a new filter since, like you said, i don't want to poke a hole in it. I'd also like to be able to measure intermittently to help determine when i need new filters. Haven't been able to figure this out, thanks!
You have to be able to insert a static pressure probe in the duct on either side of the filter. If it's in a filter grille, as mine are, you just need to measure the duct pressure behind the filter and use the room as your reference pressure.