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    Wayn3r's Avatar
    Wayn3r Posts: 1, Reputation: 1
    New Member

    Feb 24, 2019, 08:19 AM
    What is the maximum MERV filter rating for a Trane XR90?
    I want to use the best filters for dust and allergens, but don't want to exceed the capacity of the furnace fan. What is the highest filter rating for this furnace? I checked the manual but could find no mention of that.
    ma0641's Avatar
    ma0641 Posts: 15,681, Reputation: 1012
    Uber Member

    Feb 24, 2019, 11:23 AM
    Read this.
    There is no furnace rating. Keep an eye on the filter. If it clogs up too quickly, drop to a lower MERV.

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