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Rheem Classic 90 Plus Furnace
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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.
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Consumer Reviews of the Rheem Classic 90 Plus
Date created: 2012-01-20
Name: hvacman
Location: Richmond Mi.
Years owned: 15
Satisfaction Rating:
Very Satisfied
Review:
"HVAC Service Manager"
I am a hvac service manager of a family owned company. Many customers do not have regular maintenance, and their equipment fails every year. Of course, these are the customers who will whine and cry when the unit fails. You explain to them how important maintenance is, they know it all. If the equipment is sized properly and installed correctly, you should have very few problems, if any. Remember, it is a mechanical piece of equipment, not made to last forever.
Date created: 2011-11-07
Name: H. Kurtz
Location: Portland, OR.
Years owned: 10
Satisfaction Rating:
Very Satisfied
Review:
"No major problems yet"
I bought my Rheem furnace RGTA-07* in October 2001. Fours years later it had a problem of some times failing to light the burner. A technician came out and replaced the pressure switch which verifies draft. The technician seen a small oil leak from the fan motor. He replaced motor a few days later under warranty. Furnace worked great for about week after his second visit. Then furnace failed to light main burner intermittently. I kept the old switch and it tested good. I knew the root cause wasn't fixed yet. I cleaned out the condensation trap next. Trap was plugged with a black muck. Since then it been working great. I now do all my own furnace work since receiving a degree in facilities maintenance. If anybody replaces a lot of parts all I can say is find a new service company. Your being ripped off.
Other Classic 90 Plus Reviews
While some reviewers on hvac-talk.com consider this model to be a quality, inexpensive option for efficient heating, several others report problems with the Classic 90 Plus. The consumer forums doityourself.com and justanswer.com are littered with troubleshooting inquiries for this unit.
Homeowners post problems with the system not staying lit, hard-to-read diagnostics, failing components, and issues with the unit intermittently stopping and starting. Improper installation and sizing issues also are among the reported setbacks.
Contactor reviews also mention Rheem has had a history of problems, but the key to solid performance is installation from an industry professional.
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 |
| RGRA-04* | 93.5 | 45,000 |
| RGRA-04EMAES | 93.5 | 45,000 |
| RGRA-06* | 92.5 | 60,000 |
| RGRA-06EMAES | 92.5 | 60,000 |
| RGRA-07* | 92.8 | 75,000 |
| RGRA-09* | 93.5 | 90,000 |
| RGRA-09EZAJS | 93.5 | 90,000 |
| RGRA-10* | 92 | 105,000 |
| RGRA-10EZAJS | 92 | 105,000 |
| RGRA-12* | 93.5 | 120,000 |
| RGRA-12ERAJS | 93.5 | 120,000 |
| RGRB-07EMAES | 92.8 | 75,000 |
| RGRB-07EYBGS | 92 | 75,000 |
| RGTA-04* | 92 | 45,000 |
| RGTA-04EMAES | 92 | 45,000 |
| RGTA-06* | 92.4 | 60,000 |
| RGTA-06EMAES | 92.4 | 60,000 |
| RGTA-07* | 92 | 75,000 |
| RGTA-07EMAES | 92 | 75,000 |
| RGTA-07EYBGS | 92.3 | 75,000 |
| RGTA-09* | 92.4 | 90,000 |
| RGTA-09EZAJS | 92.4 | 90,000 |
| RGTA-10* | 92 | 105,000 |
| RGTA-10EZAJS | 92 | 105,000 |
| RGTA-12* | 92.1 | 120,000 |
| RGTA-12ERAJS | 92.1 | 120,000 |
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.
