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Q&A About Filters for Trane Furnaces

Question: What size filter for a Trane XV95 furnace?

Answer: The filter you need depends on both the configuration of the furnace and the width of your furnace's cabinet. See the chart below.

Furnace Filters for the Trane XV95

Air Flow Configuration Cabinet Width Filters
Upflow / Horizontal 19-1/2" buy now on amazon 1 17x25x1 filter
Downflow / Horizontal 19-1/2" buy now on amazon 1 14x20x1 filter
Upflow / Horizontal 23" buy now on amazon 1 20x25x1 filter
Downflow / Horizontal 23" buy now on amazon 1 16x20x1 filter
Upflow / Horizontal 26-1/2" buy now on amazon 1 24x25x1 filter
Downflow / Horizontal 26-1/2" buy now on amazon 1 16x20x1 filter

Question: What size filter for my Trane XR80?

Answer: You can find the appropriate filter by selecting the proper cabinet width for your model.

Furnace Filters for the Trane XR80

Air Flow Configuration Cabinet Width Filters
Upflow 14-1/2" buy now on amazon 1 14x25x1 filter
(bottom air return)
Upflow 17-1/2" buy now on amazon 1 17x25x1 filter
Upflow 21" buy now on amazon 1 20x25x1 filter
(bottom air return)
Upflow 24-1/2" buy now on amazon 1 24x25x1 filter
(bottom air return)
Upflow All 1 17-1/2x25x1 filter
(side air return)

Question: Where is the air filter for the Trane XR95?

Answer: The air filter in the Trane XR95 is located in a different location depending on what type of air flow your furnace is. For upflow horizontal models the filter is located in a remote area. For upflow vertical models the optional filter rack is located on the bottom side of the unit. For downflow models the filters are typically found outside the furnace cabinet. To find the correct filter for your furnace the chart below corresponds with the width of the furnace cabinet. Let us know how you make out! Thanks,

Furnace Filters for the Trane XR95

Air Flow Configuration Cabinet Width Filters
Upflow 14-1/2" buy now on amazon 1 14x25x1 filter
(bottom air return)
1 17-1/2x25x1 filter
(bottom air return)
Downflow 14-1/2" buy now on amazon 2 14x20x1 filters
Upflow 17-1/2" buy now on amazon 1 17x25x1 filter
(bottom air return)
1 17-1/2x25x1 filter
(side air return)
Downflow 17-1/2" buy now on amazon 2 16x20x1 filters
Upflow 21" 1 17-1/2x25x1 filter
(side air return)
buy now on amazon 1 20x25x1 filter
(bottom air return)
Downflow 21" buy now on amazon 2 16x20x1 filters
Upflow 24-1/2" 1 17-1/2x25x1 filter
(side air return)
buy now on amazon 1 24x25x1 filter
(bottom air return)
Downflow 24-1/2" buy now on amazon 2 16x20x1 filters

Question: I have a Trane XV80 furnace. Is there a filter in the furnace? I have two filters in the house but I thought there was one in the furnace compartment.

Answer: Typically when furnace filters are found in the furnace cabinet the air flow configuration of that unit is upflow. Most downflow units have their filters in the ductwork. See the chart below for matching filter for the Trane XV80. The correct filter matches to the air flow configuration and cabinet width. Thanks!

The manual on pages 7 and 8 displays diagrams to eliminate confusion.

Furnace Filters for the Trane XV80

Air Flow Configuration Cabinet Width Filters
Upflow 17-1/2" buy now on amazon 1 17x25x1 filter
Downflow / Horizontal 17-1/2" buy now on amazon 2 14x20x1 filters
All 19-1/2" buy now on amazon 1 17x25x1 filter
Upflow 21" buy now on amazon 1 17x25x1 filter buy now on amazon 1 20x25x1 filter
Downflow / Horizontal 21" buy now on amazon 2 16x20x1 filters
All 23" buy now on amazon 1 20x25x1 filter
Upflow 24-1/2" buy now on amazon 1 17x25x1 filter buy now on amazon 1 24x25x1 filter
Downflow / Horizontal 24-1/2" buy now on amazon 2 16x20x1 filters
All 26-1/2" buy now on amazon 1 24x25x1 filter
Upflow / Horizontal All buy now on amazon 2 16x20x1 filters

Question: Where is filter on the Trane XB80 furnace?

Answer: For filter diagram and information for the Trane XB80 downflow model see pages 10 and 11 in the installation manual. See the link below for the manual. http://www.bayareaservice.com/wp-content/uploads/2011/12/XB80-Installation-Manual.pdf

The Trane XB80 furnace filter can be found in different places depending on what type of unit you have. Upflow furnaces use a high velocity type air filter which may be located within the furnace blower compartment in either a BOTTOM or SIDE (left or right) return air inlet. The location of filters in downflow furnaces are found outside of the furnace cabinet, typically in the ductwork. Below is a chart for replacement furnaces. This chart matches the correct filter by air flow configuration and cabinet width. Thanks!

Furnace Filters for the Trane XB80

Air Flow Configuration Cabinet Width Filters
All 14-1/2" buy now on amazon 1 14x25x1 filter
(bottom air return)
Downflow 14-1/2" buy now on amazon 1 14x20x1 filter
All 17-1/2" buy now on amazon 1 17x25x1 filter
(bottom air return)
Downflow 17-1/2" buy now on amazon 1 16x20x1 filter
All 21" buy now on amazon 1 20x25x1 filter
(bottom air return)
Downflow 21" buy now on amazon 1 16x20x1 filter
All 24-1/2" buy now on amazon 1 24x20x1 filter
(bottom air return)
Downflow 24-1/2" buy now on amazon 1 24x20x1 filter

Question: What size filter does the XB90 Trane furnace take?

Answer: Finding the right furnace filters for the XB90 is a bit complicated, but we'll walk you through it. First, you need to take a look at the furnace and figure out if it is an upflow furnace or a horizontal furnace.

If your furnace is in a horizontal configuration, you're done -- just use the chart below for the horizontal version of the XB90 -- you'll need to buy 2 filters.

If your furnace is in an upflow configuration, you only need 1 filter -- but it's a bit trickier to figure out which one you need.

First, measure the width of the furnace cabinet. If it's 17-1/2", you're all set -- you need a 17x25x1 filter. (You can buy one on Amazon with the link below).

If it's wider than 17-1/2", you'll need to see whether the current filter is located at the bottom of the furnace or on the side. Then, use the chart below to figure out the correct filter. If the filter is located on the side, the Owner's manual for the XB90 says that you'll need to trim down the 17x25x1 filter.

Furnace Filters for the Trane XB90

Air Flow Configuration Cabinet Width Filters
Upflow 17-1/2" buy now on amazon 1 17x25x1 filter
Upflow 21" buy now on amazon 1 17x25x1 filter
(side air return)
buy now on amazon 1 20x25x1 filter
(bottom air return)
Upflow 24-1/2" buy now on amazon 1 17x25x1 filter
(side air return)
buy now on amazon 1 24x25x1 filter
(bottom air return)
Horizontal All buy now on amazon 2 16x20x1 filters

Question: How to change the filter on my Trane XC95M?

Answer: For manufacturer's directions for how to change the filter on the Trane XC95M, please see the manual for your unit. Then, look at the diagrams starting on page 7.

Please see the chart below for the proper filter for your unit!

Furnace Filters for the Trane XC95m

Air Flow Configuration Cabinet Width Filters
Upflow / Horizontal 17-1/2" buy now on amazon 1 17x25x1 filter
Upflow / Horizontal 21" buy now on amazon 1 20x25x1 filter
Upflow / Horizontal 24 1/2" buy now on amazon 1 24x25x1 filter

Question: How to determine filter size for the Trane XE90 furnace?

Answer: The filter for the Trane XE90 should be located at the bottom of the furnace cabinet. See the chart below for a replacement filter. This chart is based on the air flow configuration and the width of the furnace cabinet.

If you still have questions, this manual provides instructions on page 81.

Furnace Filters for the Trane XE90

Air Flow Configuration Cabinet Width Filters
Downflow / Horizontal 17-1/2" buy now on amazon 1 14x20x1 filter
Downflow / Horizontal 21" buy now on amazon 1 16x20x1 filter
Downflow / Horizontal 24-1/2" buy now on amazon 1 16x20x1 filter
Upflow / Horizontal All buy now on amazon 1 16x20x1 filter

Question: What kind of filter do I need for the Trane XL90 Furnace?

Answer: Which filter you need depends on the configuration of your furnace, and the size of the furnace cabinet. If you have an upflow or a horizontal furnace where the Model Number starts with TUX2, then use the Upflow / Horizontal options in the following chart. If you have a downflow or a horizontal furnace where the Model Number starts with TDX2, then use the Downflow / Horizontal options.

The filter location for the Trane XL90 can vary by air flow configuration. If your unit is an upflow model then the air filter is found in the bottom and side of the furnace cabinet. If the unit is a downflow model, then the filter is found somewhere in the duct work. For replacement filters see the chart below, which is based on the air flow configuration and cabinet width.

Furnace Filters for the Trane XL90

Air Flow Configuration Cabinet Width Filters
Downflow 17-1/2" buy now on amazon 2 14x20x1 filters
Upflow 19-1/2" buy now on amazon 1 17x25x1 filter
Downflow 21" buy now on amazon 2 16x20x1 filters
Upflow 23" buy now on amazon 1 20x25x1 filter
Downflow 24-1/2" buy now on amazon 2 16x20x1 filters
Upflow 26-1/2" buy now on amazon 1 24x25x1 filter

Question: What filter do I need for a Trane XR90 furnace?

Answer: The filter depends on the cabinet width and air flow configuration.

Furnace Filters for the Trane XR90

Air Flow Configuration Cabinet Width Filters
Downflow / Horizontal 19-1/2" buy now on amazon 1 14x20x1 filter
Upflow / Horizontal 23" buy now on amazon 1 20x25x1 filter
Downflow / Horizontal 23" buy now on amazon 1 16x20x1 filter
Upflow / Horizontal 26-1/2" buy now on amazon 1 24x25x1 filter
Downflow / Horizontal 26-1/2" buy now on amazon 1 16x20x1 filter

Question: What size do I need for a filter for the Trane XV90?

Answer: The size of the filter you need depends on the unit's configuration (upflow, downflow, horizontal, etc.) and the width of the cabinet.

Furnace Filters for the Trane XV90

Air Flow Configuration Cabinet Width Filters
Upflow / Horizontal 17-1/2" buy now on amazon 1 17x25x1 filter
Upflow / Horizontal 21" buy now on amazon 1 20x25x1 filter
Upflow / Horizontal 24-1/2" buy now on amazon 1 24x25x1 filter

Question: How does one change the filter on the Trane XV95?

Answer: Starting on page 11 the installation manual for the Trane XV95 shows how to change the filters.

For replacement filters see the chart below. The filter matches up to the air flow configuration of your unit and the width of your furnace.

Furnace Filters for the Trane XV95

Air Flow Configuration Cabinet Width Filters
Upflow / Horizontal 19-1/2" buy now on amazon 1 17x25x1 filter
Downflow / Horizontal 19-1/2" buy now on amazon 1 14x20x1 filter
Upflow / Horizontal 23" buy now on amazon 1 20x25x1 filter
Downflow / Horizontal 23" buy now on amazon 1 16x20x1 filter
Upflow / Horizontal 26-1/2" buy now on amazon 1 24x25x1 filter
Downflow / Horizontal 26-1/2" buy now on amazon 1 16x20x1 filter

Question: What MERV rating is recommended for air filters for the Trane XV95 furnace?

Answer: The manual does not state a recommended MERV rating.

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