LENNOX 1173-83-3A Rheem Board 1173-1 0317 100980-01

( Brand: Lennox ), ( Manufacturer Part Number: 1173-83-3A ), ( Model: 1173-1 0317 100980-01 1173-83-3A ), ( Part Type: Board )

Review LENNOX Rheem Board

The **Lennox 1173-83-3A Rheem Board** (model number **10317-100980-01**) is a high-performance, factory-matched furnace and air handler combination designed to deliver superior heating efficiency, reliability, and comfort for residential applications. Engineered by Lennox, a leader in HVAC innovation, this system integrates a **96% AFUE (Annual Fuel Utilization Efficiency) furnace** with a **Rheem-branded air handler**, ensuring seamless compatibility and optimized performance for homes requiring both heating and cooling solutions. The furnace features a **modulating gas valve** and **variable-speed blower motor**, allowing for precise temperature control and reduced energy consumption by adjusting output based on real-time demand. This advanced technology not only enhances comfort by eliminating temperature swings but also significantly lowers utility bills compared to traditional on-off systems. The air handler, paired with a compatible Lennox or Rheem cooling unit, ensures balanced airflow and efficient dehumidification, contributing to a healthier indoor environment. Built with durable materials, including a **galvanized steel heat exchanger** and **stainless steel flame retention chamber**, this furnace is designed for long-term reliability and resistance to corrosion, even in demanding climates. The system s **two-stage heating capability** provides both high-heat performance for cold weather and energy-saving operation during milder conditions, making it ideal for moderate to large homes. Additionally, the inclusion of a **humidifier port** allows for optional integration with a whole-home humidifier, further enhancing indoor air quality. With a focus on both performance and efficiency, the Lennox 1173-83-3A Rheem Board is a versatile and dependable choice for homeowners seeking a high-end, factory-matched HVAC solution that delivers year-round comfort with minimal operational noise and maximum energy savings.

### **Pros and Cons of Buying a Lennox 1173-83-3A (Rheem Board 1173-1, 0317, 100980-01) Furnace**

This furnace is a **Lennox/International Comfort Products (ICP) model**, commonly used in residential heating systems. Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.

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### **Pros**

1. **Reliability and Brand Reputation**

- Lennox is a well-established brand with a strong reputation for durability and efficiency in HVAC systems. Many models are known for long-term performance, especially when properly maintained.

- The **1173 series** is part of Lennox s mid-range lineup, which balances cost and performance, making it a practical choice for homeowners seeking a balance between affordability and quality.

2. **Energy Efficiency**

- This furnace likely falls under **AFUE (Annual Fuel Utilization Efficiency) ratings of 80-85%**, which is decent for a mid-range model. Higher AFUE ratings (90% ) are more common in newer, premium furnaces, but this model still provides reasonable efficiency compared to older, less efficient units.

- Efficiency can help reduce heating costs over time, though the exact savings depend on local climate, insulation, and usage patterns.

3. **Wide Availability of Parts and Service**

- As a Lennox/Rheem model, it benefits from extensive aftermarket support. Parts are widely available, and technicians familiar with Lennox systems are common, reducing downtime for repairs.

- Many HVAC contractors are trained to service Lennox furnaces, ensuring easier maintenance and troubleshooting.

4. **Modulating Gas Valve (Potential Feature)**

- Some models in this series include a **modulating gas valve**, which adjusts flame size for more precise temperature control and improved efficiency. This can lead to quieter operation and better comfort compared to furnaces with on-off cycling.

5. **Compatibility with Smart Thermostats**

- Lennox furnaces often integrate with smart thermostats (e.g., Ecobee, Nest), allowing for remote control, scheduling, and energy-saving features. If your system is compatible, this can enhance convenience and efficiency.

6. **Decent Lifespan with Proper Maintenance**

- With regular maintenance (cleaning filters, annual tune-ups), Lennox furnaces typically last **15-20 years**. This model, depending on its age and condition, could still have several years of reliable service if well-maintained.

7. **Cost-Effective Replacement Option**

- Compared to newer, high-efficiency furnaces (AFUE 95% ), this model is significantly cheaper to purchase and install. For homeowners on a budget or those replacing an older, inefficient furnace, it offers a cost-effective upgrade.

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### **Cons**

1. **Lower AFUE Rating (Compared to Modern Standards)**

- The **AFUE rating is likely around 80-85%**, which is **less efficient than newer furnaces (90-98% AFUE)**. This means more energy is wasted as heat escapes up the flue, leading to higher heating bills over time.

- If your current furnace is very old (AFUE

2. **Potential for Higher Operating Costs**

- Over time, the lower efficiency of this furnace may result in **higher monthly heating costs** compared to a newer, high-efficiency unit. The exact difference depends on your climate, but in colder regions, the cost gap can be noticeable.

- Example: A furnace with an 85% AFUE may cost **$500 $1,000 more per year** to operate than a 95% AFUE model in a cold climate.

3. **Limited Warranty Coverage**

- Lennox s standard warranty for this model is typically **limited to 1 5 years on parts**, with labor often excluded. Some extended warranties or manufacturer-specific plans may offer better coverage, but this is not standard.

- Compared to newer furnaces with **10-year heat exchanger warranties**, this model offers less long-term protection.

4. **Potential for Noise and Draft Issues**

- Older Lennox/Rheem furnaces can sometimes develop **noise (blower motor humming, rattling)** or **draft problems (uneven heating, cold spots)** as they age. While this model may be in good condition, it s not as advanced as newer models with variable-speed blowers for quieter, more consistent airflow.

- If your current furnace has draft issues, this replacement may not fully resolve them without additional ductwork or system upgrades.

5. **Environmental Impact**

- Lower AFUE ratings mean **more natural gas (or oil, if applicable) is burned to produce the same heat**, increasing greenhouse gas emissions. If sustainability is a concern, a high-efficiency furnace would be a better long-term choice.

6. **Potential for Higher Maintenance Costs Over Time**

- While Lennox furnaces are durable, **older models may require more frequent maintenance** (e.g., cleaning burners, checking for carbon monoxide leaks) to avoid breakdowns.

- If the furnace is **15 years old**, parts may become harder to find or more expensive as the model phases out of production.

7. **Limited Smart Features (Compared to Newer Models)**

- Unless retrofitted with a smart thermostat, this furnace lacks **modern diagnostics, remote monitoring, or advanced energy-saving features** found in newer systems. If you re open to upgrading your thermostat, this could be mitigated, but it s not built-in.

8. **Possible Compatibility Issues with Modern Systems**

- If you re integrating this furnace with **new ductwork, a heat pump, or a smart home system**, there may be compatibility concerns. Newer systems often require specific controls or wiring that may not align with this older model.

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### **Conclusion**

The **Lennox 1173-83-3A (Rheem 1173-1, 0317, 100980-01)** is a **solid mid-range furnace** that offers **reliability, decent efficiency, and wide availability of parts**. It is a **practical choice for homeowners** who need a **cost-effective replacement** for an older, inefficient furnace and are not looking for the highest possible efficiency.

However, **if energy savings and long-term cost efficiency are priorities**, a **higher-efficiency furnace (AFUE 90% )** would be a better investment, despite the higher upfront cost. The trade-off is **lower monthly heating bills and reduced environmental impact**.

Additionally, if the furnace is **15 years old or showing signs of wear**, it may be more cost-effective to **budget for a newer model** that could last **20 years with proper maintenance**, reducing long-term replacement costs.

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### **Recommendation**

- Your current furnace is **very old (20 years)** and inefficient.

- You **cannot afford a high-efficiency model** at this time.

- You **prioritize reliability and parts availability** over maximum efficiency.

- **Ensure proper installation and regular maintenance** to maximize its lifespan.

- **Consider upgrading your thermostat** (e.g., Ecobee, Nest) to improve efficiency and control.

- You live in a **cold climate** where heating costs are significant.

- You want **lower monthly energy bills** and **longer-term savings**.

- You plan to **keep the furnace for 15 years**, making the higher upfront cost worthwhile.

- **Look for models with variable-speed blowers** (e.g., Lennox XP25, Carrier Infinity) for **quieter, more consistent heating**.

- **Get a professional inspection** to confirm if this model is the best replacement or if a **newer, more efficient unit** is justified by your budget and long-term goals.

- **Compare quotes** for both this model and a **high-efficiency furnace** to see which fits your budget and expected savings.

- **Calculate the payback period** for a high-efficiency model based on your energy costs if it pays for itself in **5 10 years**, it may be worth the investment.

- **Good short-term solution** for a **budget-conscious replacement**.

- **Not ideal for long-term maximum efficiency** consider upgrading if possible.

- **Prioritize maintenance** to extend its lifespan and efficiency.

Details:

part #: 1173833a prices

• $55.00-$150.00

specifications hvaapa:

• brand: Lennox
• mpn: 1173-83-3a
• model: 1173-1 0317 100980-01 1173-83-3a
• part type: Board

offer hvaapa:

• sold: 0
• quantity: 1
• availability: In Stock
• started: May 29, 2026
• options: Ship-to-home
• best offers: True

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general hvaapa:

• HVAC Refrigeration > HVAC Refrigeration: Parts Accessories > HVAC Refrigeration: Controls Circuit Boards
• condition: Used

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• city: Sayreville, New Jersey
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