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Installing A Furnace Filter
QUESTION:I'm wondering how often to change this filter. It's huge and very
expensive. I'd hate to change it more often than necessary. The
installer said every six months.
I sent an email to Carrier and they told me once a month. That sounded
ridiculous to me. The documentation says to look at it at least every
six months and change it at least once a year.
Can I just look at it and know when it needs changing?
ANSWER: Changing filter is like changing oil in the car. Depends on how much you
drive, where, etc.
If your furnace runs very little, you have no pets (or children), floors are
hardwood, etc. - you're filter will pickup very little dirt. And after all
that's what it's for. You can afford to change it less often.
Additionally, you can often vacuum the dirt off or blow it off with
compressed air. All messy, but practical. If you can distinguish clean
from dirty - by all means look at it and decide.
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