
Photo by Safwan C K on Pexels
Recommended Models at a Glance
| Brand and model | Positioning | Best for | Verified product fact | Important limitation |
|---|---|---|---|---|
| Lennox SLP99V | premium | maximum efficiency and quiet operation | Variable-capacity gas furnace with efficiency advertised up to 99 percent AFUE. | higher cost |
| Trane Premier 97 Two-Stage Variable Speed | premium | high efficiency with two-stage heating and variable-speed airflow | Two-stage variable-speed gas furnace with a 97 percent AFUE rating. | higher cost |
| Carrier Infinity 98 59MN7 | premium | premium comfort, precise modulation, and high efficiency | Modulating gas furnace with variable-speed operation and efficiency up to 98.5 percent AFUE. | higher cost |
| Rheem Endeavor R98MV | premium | high-efficiency modulating heating and connected controls | Modulating gas furnace family with 98 percent AFUE and EcoNet compatibility. | Confirm exact sizing, matched components, current specifications, local availability, and installed pricing. |
Introduction to High Efficiency Gas Furnaces
When it comes to replacing your old gas furnace, a high efficiency model can be a great choice. But who should buy a premium variable-speed model, and which ones are worth the extra cost?
Understanding Your Options
Homeowners who value precise temperature control, high efficiency, and quiet operation may want to consider a premium variable-speed gas furnace. However, these models are typically more expensive than standard models.
Model Overview
The Carrier Infinity 98 59MN7, Trane Premier 97 Two-Stage Variable Speed, Lennox SLP99V, and Rheem Endeavor R98MV are all high efficiency gas furnaces with variable-speed operation.
Key Considerations
When choosing a gas furnace, consider factors like sizing, Manual J, matched equipment, climate, ducts, fuel, electrical service, installer quality, and local parts support. These factors can matter more than the brand or model of the furnace.
Contractor Quote Checklist
Before hiring a contractor, make sure to ask about the following: exact model, AHRI match, current specs, warranty registration, availability, and written installed quote.
Final Recommendation
Based on your specific needs and budget, consider the following models. If you prioritize maximum efficiency and quiet operation, the Lennox SLP99V may be the best choice. For high efficiency with two-stage heating and variable-speed airflow, the Trane Premier 97 Two-Stage Variable Speed is a great option.
Conclusion
In conclusion, a high efficiency gas furnace can be a great choice for homeowners who value energy efficiency and comfort. By considering your specific needs and budget, and doing your research, you can find the best model for your home.
Frequently Asked Questions
What is a high efficiency gas furnace?
A high efficiency gas furnace is a type of furnace that uses advanced technology to achieve higher efficiency ratings, typically above 90 percent AFUE.
What are the benefits of a variable-speed gas furnace?
The benefits of a variable-speed gas furnace include precise temperature control, high efficiency, and quiet operation.
How do I choose the right size gas furnace for my home?
To choose the right size gas furnace for your home, consider factors like Manual J, matched equipment, climate, ducts, fuel, electrical service, and local parts support.
What is the difference between a single-stage and two-stage gas furnace?
A single-stage gas furnace has one stage of heating, while a two-stage gas furnace has two stages of heating, providing more precise temperature control and higher efficiency.




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