Rheem Classic 90 Plus Furnace
Overview of Classic 90 Plus
The Rheem Classic 90 Plus series consists of single and two-stage gas furnaces offering up to 95 percent AFUE. All models are designed for easy installation and have a low, 34-inch profile for upflow, horizontal and downflow configurations.
While all models in this series are promoted for their quiet operation with a soft-operating PCS motor, an insulated blower compartment, and a slow-open gas value, only the two-stage units have a multi-stage function. This feature contributes to improved furnace efficiency by allowing the system to consistently operate on a lower stage until the need for increased heat is detected.
Additional features of the Classic 90 Plus series include an aluminized steel heat exchanger, direct spark ignition and remote sensor, and a pre-painted galvanized steel cabinet designed for durability and protection.
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|
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Consumer Reviews of the Classic 90 Plus
Rheem Classic 90 Plus Model Numbers
The Classic 90 Plus is available in different models which vary in efficiency and capacity.
|Model Number||AFUE||BTUs per Hour|
Classic 90 Plus Warranty
Rheem offers a limited lifetime heat exchanger warranty on most models within this series, and 5-year parts warranty for all remaining components for the Classic 90 Plus series. Single-stage models also are equipped with a limited lifetime warranty on heat exchangers. Products must be registered on Rheem's website to receive the full warranty.