I have filters in all my returns is a filter needed in my furnace Rheem Classic 90 plus.Post created: 2014-12-01 Type of Equipment: Furnace Views: 167
This question was created on the page: https://www.furnacecompare.com/furnaces/rheem/classic-90-plus.html.
I just moved in to this house
On 2014-12-01 Danielle wrote:
The filter location for the Rheem Classic Plus 90 depends on the air flow configuration. If your unit is an upflow unit then there are additional filters within the furnace cabinet on the bottom and side. If your unit is a downflow unit then the filters are located in the ductwork.
Furnace Filters for the Rheem Classic 90 Plus
|Air Flow Configuration||Cabinet Width||Filters|
|Upflow||17-1/2"||2 15-3/4x25x1 filters|
|Downflow / Horizontal||17-1/2"||2 12x20x1 filters|
|Upflow||21"||1 15-3/4x25x1 filter|
|Downflow / Horizontal||21"||2 12x20x1 filters|
|Upflow||24-1/2"||1 15-3/4x25x1 filter 1 22-3/4x25x1 filter|
|Downflow / Horizontal||24-1/2"||2 14x20x1 filters|
|Upflow||25"||1 19-1/4x25x1 filter|