
LB-66564 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $31.00 | Condition is New, NEW LENNOX AIR DIAPHRAGM ASSEMBLY LB-45918CB LB-66564, shipping cost = $6.36 | 99.7% |
![]() | $32.00 | Condition is New, NEW LENNOX AIR DIAPHRAGM ASSEMBLY LB-45918CB LB-66564, shipping cost = $7.00 | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $9.99 | Condition is New – Open box, OEM NEW LENNOX LB66564 FURNACE DIAPHRAGM NOS FREE SHIPPING , FREE SHIPPING | ![]() |
![]() | $99.99 | Condition is New – Open box, Lennox LB-45918CD Pulse Air Flapper Assembly LB-66564, FREE SHIPPING | 99.9% |

Introducing the Lennox LB-66564/LB-459 Pulse Air Flapper, an essential component of your HVAC system designed to ensure optimal airflow and energy efficiency. This flapper is part of the Lennox Pulse line, which is known for its innovative technology and reliable performance.
The LB-66564/LB-459 is a motorized damper assembly that operates using a pulse motor. This motor uses a series of rapid, short activations to open and close the damper, providing precise control over airflow. The pulse technology not only improves system efficiency but also reduces noise levels compared to traditional constant-running dampers.
This flapper is designed for use with single-zone systems and is available in a variety of sizes to accommodate different ductwork configurations. The LB-66564 model is suitable for 4-inch round ductwork, while the LB-459 is designed for 6-inch round ductwork. Both models have a maximum static pressure drop of 0.5 inches water gauge (iwg), ensuring minimal impact on system performance.
The Lennox LB-66564/LB-459 Pulse Air Flapper is constructed using high-quality materials for durability and longevity. The damper blades are made from heavy-duty aluminum, while the housing is made from thermoplastic material that resists corrosion and wear. The flapper also features a removable cover, making it easy to access for cleaning or maintenance.
Installation of the LB-66564/LB-459 Pulse Air Flapper is straightforward, with clear instructions provided in the user manual. The flapper can be wired directly to the control board or to a relay, depending on the specific system configuration. Lennox offers a range of compatible controls, including the iComfort S30 Ultra Smart Thermostat, to provide advanced features and ease of use.
In conclusion, the Lennox LB-66564/LB-459 Pulse Air Flapper is a high-performance, energy-efficient solution for controlling airflow in your HVAC system. With its innovative pulse technology, durable construction, and easy installation, this flapper is an excellent choice for homeowners and HVAC professionals alike.
Lennox LB-66564 and LB-459 Pulse Air Flapper: A Detailed Analysis
The Lennox LB-66564 and LB-459 Pulse Air Flapper are two popular models designed to improve the efficiency and comfort of your HVAC system. In this analysis, we will discuss the key features, benefits, and potential drawbacks of each model to help you make an informed decision.
1. Lennox LB-66564 Pulse Air Flapper: Features:- Designed for use with Lennox's Pulse Comfort System
- Provides consistent airflow across the entire length of the duct
- Constructed with heavy-duty materials for durability
- Features a simple installation process
Benefits:- Enhances airflow and distributes it evenly
- Helps maintain consistent temperatures throughout the house
- Reduces strain on the HVAC system, potentially increasing its lifespan
- Improves overall comfort and energy efficiency
Drawbacks:- Specifically designed for use with Lennox systems
- May require additional parts for installation on non-Lennox systems
- Higher upfront cost compared to some alternatives
2. Lennox LB-459 Pulse Air Flapper: Features:- Can be used with various HVAC systems
- Adjustable design for optimal airflow
- Constructed with durable materials
- Features a simple installation process
Benefits:- Flexible and can be used with different HVAC systems
- Adjustable design caters to individual airflow needs
- Helps maintain consistent temperatures and improve overall comfort
- Durable construction ensures long-term use
Drawbacks:- May not provide the same level of airflow consistency as the LB-66564 model
- Potential for installation complications on some systems
- Slightly lower airflow capacity compared to the LB-66564 model
Conclusion:Both the Lennox LB-66564 and LB-459 Pulse Air Flappers offer significant benefits in terms of airflow consistency, temperature maintenance, and overall comfort. However, the LB-66564 model is specifically designed for use with Lennox systems, limiting its flexibility.
On the other hand, the LB-459 model can be used with various HVAC systems and offers an adjustable design. While it may not provide the same level of airflow consistency as the LB-66564 model, it offers more flexibility and is a more cost-effective solution for those with non-Lennox systems.
Recommendation:Based on the analysis, the Lennox LB-459 Pulse Air Flapper is the more versatile and cost-effective option for those with non-Lennox HVAC systems. However, if you have a Lennox system and prioritize maximum airflow consistency, the LB-66564 model would be the better choice.
Ultimately, the decision between the two models depends on your specific HVAC system and individual preferences. It is essential to consider factors such as cost, installation requirements, and desired airflow consistency before making a purchase.
Details:
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specifications maxohvac:
- brand: Lennox
- mpn: Lb-66564
- part type: Air
offer maxohvac:
- availability: in stock
- in stock #: 4
- prices: $31.00–$99.99
- item condition:
- New
- New – Open box
- options: ship-to-home
- sold #: 11
- best offers: true
- started: january 12, 2026
shipping maxohvac:
- service: usps ground advantage
- class: standard
- type: fixed
- carrier: usps
- transit: 5-10 days
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
payments maxohvac:
- wallet: paypal
- other
- credit card: visa
returns maxohvac:
- policy: no returns
seller maxohvac:
- # reviews: 7566
- rating: 99.9%
- city: waynesboro, virginia
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