LENNOX 105804-03 Unit Heater Fan Blade 18L67

( Brand: Lennox ), ( Manufacturer Part Number: 105804-03 ), ( Part Type: Fan Unit Heater Blade )

Review LENNOX Unit Heater Fan Blade

The **Lennox 105804-03 Unit Heater with 18L67 Fan Blade (14")** is a robust, high-performance gas-fired unit heater designed to deliver efficient, reliable heating for both residential and light commercial spaces. Engineered with precision, this model combines Lennox s reputation for durability and energy efficiency with a compact yet powerful construction, making it an ideal choice for applications where space is limited but heating demands are significant. The unit operates on natural gas or propane, offering flexible fuel options to suit various installation requirements, while its modular design allows for easy integration into existing HVAC systems or standalone setups. At the heart of its operation is the **14-inch 18L67 fan blade**, a critical component engineered for optimal airflow and energy transfer. Crafted from high-quality materials, this fan blade ensures smooth, quiet operation while maximizing heat distribution across the space, reducing cold spots and improving overall comfort. The blade s aerodynamic design minimizes resistance, allowing the unit to maintain consistent performance even under varying load conditions, whether in a warehouse, workshop, or large garage. Built to withstand the rigors of continuous use, the Lennox 105804-03 features a sturdy steel construction with corrosion-resistant coatings, ensuring longevity in environments where humidity, dust, or temperature fluctuations could otherwise compromise performance. Its modular design also simplifies maintenance, as components like the fan blade can be quickly accessed and replaced without extensive disassembly. For added convenience, the unit incorporates a **modulating gas valve**, which adjusts fuel flow in real-time to match heating demands, reducing energy waste and extending the lifespan of the system. Whether used as part of a larger HVAC setup or as a standalone solution, the Lennox 105804-03 delivers consistent, high-efficiency heating with minimal operational noise, making it a dependable choice for applications where performance and reliability are paramount.

### **Pros and Cons of buying a Lennox 105804-03 Unit Heater (18L67 Fan Blade, 14")**

1. **Reliability and Durability** Lennox is a well-established brand known for producing high-quality heating equipment. The 105804-03 unit heater is designed for commercial and industrial applications, suggesting robust construction and longevity.

2. **Efficient Heating Performance** This unit is likely designed for high-capacity heating, making it suitable for large spaces such as warehouses, garages, or commercial buildings. Its efficiency can help reduce energy costs over time if properly maintained.

3. **Compatibility with Existing Systems** The 18L67 fan blade (14" diameter) is a common size, meaning it may be easier to find replacement parts or compatible accessories if needed.

4. **Good for High-Volume Airflow** The larger fan blade (14") suggests better airflow distribution, which can improve heating uniformity in large or open areas.

5. **Potential for Long-Term Cost Savings** If the unit is energy-efficient and well-maintained, it could reduce heating expenses compared to less efficient alternatives.

6. **Widely Available Parts and Support** Lennox has a broad dealer network, making it easier to find service technicians, replacement parts, or technical support.

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1. **High Initial Cost** Lennox unit heaters, especially commercial-grade models, tend to be more expensive upfront compared to basic or aftermarket alternatives.

2. **Maintenance Requirements** Like any mechanical system, this unit will require regular maintenance (cleaning, lubrication, filter replacement) to ensure optimal performance. Neglecting maintenance can lead to breakdowns and higher long-term costs.

3. **Energy Consumption** While efficient by design, some older or poorly maintained models may still consume significant energy, especially in very cold climates. Ensure the unit is properly sized for your space to avoid excessive energy use.

4. **Installation Complexity** Installing a commercial unit heater may require professional expertise, especially if ductwork or electrical modifications are needed. DIY installation could void warranties or lead to safety hazards.

5. **Limited Warranty (Compared to Some Brands)** Lennox typically offers a limited warranty (often 1 5 years on parts), which may not cover all potential issues. Review the warranty terms carefully before purchasing.

6. **Potential for Noise** Some unit heaters, depending on their design and fan speed, can produce noticeable noise. If installed in a space where quiet operation is critical (e.g., offices), this could be a drawback.

7. **Depreciation** Commercial heating equipment may depreciate over time, especially if newer, more efficient models become available.

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The **Lennox 105804-03 unit heater with the 18L67 (14") fan blade** is a solid choice for those needing a **durable, high-capacity heating solution** for large or industrial spaces. Its reliability, efficiency, and brand reputation make it a worthwhile investment if properly maintained. However, the **higher upfront cost, maintenance needs, and potential energy consumption** should be carefully considered.

If your primary needs are **commercial or industrial heating in a well-ventilated space** and you can afford the initial and maintenance costs, this unit is a strong recommendation. For **residential use or smaller spaces**, a less expensive or more energy-efficient alternative might be more suitable.

- **Buy if:** You need a **commercial-grade heater for a large area**, prioritize **brand reliability**, and are prepared for **regular maintenance**.

- **Consider alternatives if:** You are on a **tight budget**, need **quieter operation**, or require **higher energy efficiency** (in which case, look for newer models or ENERGY STAR-rated units).

- **Verify compatibility** with your existing ductwork and electrical setup before purchasing.

- **Get a professional inspection** if unsure about installation or maintenance requirements.

Ultimately, this Lennox unit heater is a **good long-term investment for the right application**, but weigh the pros and cons against your specific needs before finalizing the purchase.

Details:

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We demand quality. Lennox Unit Heater 18L67 105804-03 Fan Blade 14: Enhance the efficiency of your heating system with. Hes a pretty smart guy don't tell him we actually admitted that and soon discovered that harvesting the undamaged TV parts within reclaimed TVs is better business model more Eco-friendly. Part Number: 105804-03, Manufacturer Lennox Warranty: 180-Day Warranty, Visible 18L67.

Designed specifically for Lennox systems, this like-new fan blade ensures optimal performance and reliability. Each of our appliance parts also gets inspected multiple times.

part #: 10580403 price

• $238.67

specifications fablowehva:

• brand: Lennox
• mpn: 105804-03
• part type: Fan Unit Heater Blade

shipping fablowehva:

• transit: 4-8 Days
• service: UPS Ground Saver
• carrier: UPS
• type: Fixed
• class: Economy
• cost: $0.00

offer fablowehva:

• sold: 0
• started: April 2, 2026
• quantity: 1
• options: Ship-to-home
• availability: In Stock

seller fablowehva:

• rating: 99.0%
• city: Burnsville, Minnesota
• # reviews: 95412

payments fablowehva:

• credit card: Diners-club
• other
• wallet: Apple-pay

returns fablowehva:

• paid by: Buyer
• policy: Returns Accepted
• method: Money back
• time: 30 Days

general fablowehva:

• HVAC Refrigeration > HVAC Refrigeration: Parts Accessories > HVAC Refrigeration: Fans Blowers
• condition: Used

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