Re: Furnance Filter
Not really knowing the configuration of the filter in respect to the equipment, I don't know if 'too tall' would adversely affect it or not. I would venture to say you would be okay if it extended out of the duct somewhat. On the other hand, if the filter lets any air bypass, then you lose the benefit of the filter at least to that degree.
I would suggest having someone (professional) come in and in the course of servicing your equipment, have them fabricate and install an external filter rack that will accomodate a more common sized filter.
A snug fit would be preferable over gaps since the gaps can allow a certain amount of air to bypass the filter. I am not familiar with the brand of equipment you have, however, most all manufacturers anymore don't include filters with their equipment since many of them are used with filtration systems that reflect a greater concern with indoor air quality.
All the best, Irishmist
p.s. there are some filter medias that can be 'cut to fit' but usually these are at the bottom of the efficiency range.
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