Goodman 80000 BTU 96 % Efficient Gas Furnace – Upflow / Horizontal Multi-Speed | California and Colorado Ultra Low NOx | R32 (GR9S960805CU)
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Key features
- 96% AFUE efficiency rating for near-top-tier natural gas heating performance
- 80,000 BTU output suited to mid-size homes in colder climates
- Ultra Low NOx certified for California and Colorado regulated air districts
- Multi-speed ECM-style blower for variable airflow and quieter partial-load operation
- Upflow and horizontal installation compatibility for basements, closets, and attics
- Compatible with R-32 refrigerant systems when paired with a matching Goodman cooling unit
About this system
The Goodman GR9S960805CU is an 80,000 BTU, 96% AFUE upflow/horizontal gas furnace built specifically to meet California and Colorado Ultra Low NOx emissions requirements. That NOx compliance matters: if you live in the South Coast AQMD, Bay Area BAAQMD, or certain Colorado air-quality districts, this furnace is on the approved list while many standard models are not. The R-32 notation in the model string refers to the refrigerant compatibility designation for paired cooling equipment, not to the furnace itself, which runs on natural gas. Multi-speed blower operation means the unit can adjust airflow to match the heating load rather than running at full blast every cycle, which improves comfort and can reduce blower noise compared to single-speed units.
At 96% AFUE, this furnace sits near the top of the efficiency tier for gas heating. Roughly 96 cents of every dollar you spend on gas becomes heat in your home. That rating makes it a strong fit for colder climates where the furnace runs hard from October through April, and where the efficiency premium over an 80% unit pays back meaningfully on monthly bills. The upflow/horizontal configuration covers the most common residential installation orientations, fitting a basement, closet, or attic application where the air handler sits below or beside the ductwork. It is not a downflow unit, so verify your existing cabinet orientation before purchasing.
The GR9S960805CU delivers genuine 96% AFUE efficiency and the required Ultra Low NOx certification at a price point noticeably below Carrier, Trane, and Lennox equivalents, making it a legitimate value choice for regulated-market buyers. The trade-off is a brand track record that leans heavily on installer quality and shows higher repair frequency after year seven than premium competitors. Buyers who secure a quality installation and budget for a service agreement get solid performance; those who cut corners on labor are more likely to experience the issues that drive Goodman's lower consumer ratings.
Overall score is the average of the five ratings above.
What we like
- 96% AFUE keeps long-term fuel costs competitive with premium brands at a lower upfront price
- Ultra Low NOx certification opens the door in California and Colorado districts where standard furnaces are restricted
- Multi-speed blower reduces temperature swings and blower noise versus single-speed units
- Priced 15 to 25 percent below comparable Carrier, Trane, and Lennox models, lowering the total installed cost
- Upflow/horizontal flexibility suits a wide range of home layouts without a separate model SKU
Trade-offs
- Brand reliability ratings are below premium competitors, with ConsumerAffairs averaging around 2.5 out of 5 driven by repair cost complaints after roughly year seven
- Dual-run capacitor failures are a documented recurring issue, and while the repair itself is typically low-cost, it requires a service call
- Compressor and component longevity on Goodman equipment tends to average shorter than Trane or Lennox in real-world owner reports
- Performance is highly dependent on installer quality, meaning a poor installation can significantly undermine the efficiency and lifespan the specs promise
What homeowners and pros say about Goodman
Homeowners who praise the GR9S960805CU most consistently point to two things: the price at installation and the utility bills afterward. Google dealer reviews for Goodman equipment average around 3.8 out of 5, and affordability is the word that comes up most often in positive feedback. For buyers in California or Colorado who needed an Ultra Low NOx-certified unit and faced sticker shock on Carrier or Lennox quotes, this furnace is frequently described as the option that made the project financially workable without dropping to a lower efficiency tier.
On the other side, ConsumerAffairs scores for Goodman sit at roughly 2.5 out of 5, and that channel skews toward people who have had problems. The pattern in those reviews is consistent: the first several years tend to go smoothly, but repair costs start accumulating around year seven or eight. HVAC technicians frequently flag dual-run capacitor failures as the most predictable service call on Goodman equipment, a repair that is quick and typically lands in the 300 to 600 dollar range but still requires a truck roll. Pros also note that compressor and heat exchanger longevity on Goodman units tends to run shorter than on Trane or Lennox equipment, and they are direct that a careful, properly commissioned installation is the most important factor in how long any Goodman system lasts. A minority of owners have reported refrigerant-related issues within the first year on paired systems, which technicians generally attribute to installation or initial charge problems rather than factory defects.
Sources: ConsumerAffairs Goodman owner reviews, AHRI Directory of Certified Product Performance, U.S. DOE appliance and equipment efficiency standards, Goodman product specification sheets.
How it compares
| Brand | Comparable model | SEER2 | Stage | Price position |
|---|---|---|---|---|
| Goodman | GR9S960805CU | N/A (gas furnace) | Multi-speed | Value pick |
| Carrier | Performance 96 (59TP6) | N/A (gas furnace) | Two-stage | Moderately higher than Goodman |
| Trane | S9V2 (96% AFUE) | N/A (gas furnace) | Two-stage | Higher than Goodman, premium tier |
| Lennox | ML96V | N/A (gas furnace) | Variable-speed | Significantly higher than Goodman |
Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.
Questions about this system
Does this furnace actually qualify for use in California's South Coast AQMD and Bay Area BAAQMD districts?
Yes. The GR9S960805CU carries Ultra Low NOx certification, which is the specific designation required by California's strictest air quality districts and certain Colorado jurisdictions. Always confirm the current approved equipment list with your local district before purchase, as regulations can update.
What does the multi-speed blower actually do differently from a standard single-speed furnace?
A multi-speed blower can run at lower speeds during lighter heating demands rather than cycling between full-on and off. This reduces temperature swings room to room, lowers blower noise during partial-load operation, and can improve dehumidification when paired with central air conditioning.
What are the most common repairs owners run into with this Goodman furnace series?
Dual-run capacitor failure is the most frequently reported issue across Goodman gas furnaces and is generally a straightforward repair in the 300 to 600 dollar range. Repair frequency tends to climb after roughly year seven based on owner feedback, so a service agreement is worth pricing out at installation.
Can I install this furnace myself to save money?
Gas furnace installation requires licensed HVAC and gas-line work in virtually every jurisdiction, and in California and Colorado specifically, permits and inspections are standard. Beyond the legal requirement, Goodman's own track record shows that installation quality is the single largest factor in how these units perform and last, so professional installation is not a place to cut corners.
Is the R-32 label on this model number related to the furnace's refrigerant or something else?
The R-32 designation in the model string refers to the refrigerant compatibility of the matched Goodman cooling equipment in a split system, not to anything inside the furnace itself. The furnace runs on natural gas and has no refrigerant circuit; the label is a system-pairing identifier for dealers and installers.
Specifications
| Furnace output | 80000 BTU |
| Configuration | Upflow |
| Refrigerant | R-32 |
| Model | GR9S960805CU |