FASCO 70626994 Rotom Blower Rpm Weil Mclain Cg Boiler FB-RFB356 3250

( Brand: Fasco ), ( Manufacturer Part Number: 70626994 ), ( Part Type: Blower Boiler ), ( Speed: 3450 Rpm ), ( Compatible Equipment Type: Boiler, Furnace, Hvac System, Air Handler ), ( Custom Bundle: No ), ( Motor Bearing: Sleeve ), ( Voltage: 115 Volts ), ( Amperage: 1.2 Amps ), ( Frequency: 60 Hz ), ( Compatible Equipment Make: Fasco, Weil-mclain )

Review FASCO Rotom Blower Assembly Rpm Weil mclain Cg Series Boiler

The **Fasco 70626994 FB-RFB356 Rotom Blower** is a high-performance, precision-engineered forced draft blower designed exclusively for Weil-McLain CG series boilers, ensuring optimal combustion efficiency and reliable operation in residential and light-commercial heating systems. Engineered with a robust **3250 RPM motor**, this blower delivers a consistent and powerful airflow, enhancing combustion stability and reducing emissions while maintaining peak boiler performance. The **FB-RFB356 model** features a compact yet durable construction, incorporating a **direct-drive motor assembly** that minimizes energy loss and operational noise, making it ideal for quiet, efficient heating environments. Its **Rotom design** ensures smooth, laminar airflow, reducing turbulence and improving heat transfer within the boiler s combustion chamber. Built with high-quality materials, including corrosion-resistant components, this blower is engineered for long-term durability, even in demanding applications where humidity and temperature fluctuations are common. The **universal compatibility** with Weil-McLain CG boilers ensures seamless integration, allowing for easy installation and maintenance without the need for specialized tools or adjustments. Whether used in new installations or as a replacement for aging equipment, the Fasco 70626994 FB-RFB356 Rotom Blower provides a dependable solution for achieving efficient, clean-burning combustion, contributing to both energy savings and extended boiler lifespan. Its precision engineering and reliability make it a trusted choice for HVAC professionals seeking a dependable component that elevates boiler performance.

### **Pros and Cons of buying a Fasco 70626994 FB-RFB356 Rotom Blower (3250 RPM) for a Weil-McLain CG Boiler**

1. **Compatibility with Weil-McLain CG Boilers** The Fasco FB-RFB356 is specifically designed to work with Weil-McLain CG series boilers, ensuring proper airflow and combustion efficiency. This reduces the risk of installation errors that could lead to performance issues or safety hazards.

2. **High RPM (3250) for Optimal Combustion** The 3250 RPM speed is well-suited for natural gas and oil-fired boilers, providing sufficient airflow to maintain efficient combustion. This can improve boiler performance, reduce soot buildup, and extend the life of the heat exchanger.

3. **Durable Construction** Fasco rotom blowers are known for their robust build quality, often featuring corrosion-resistant materials and sealed bearings to withstand continuous operation in demanding environments.

4. **Quiet Operation** Compared to some older or lower-quality blowers, the FB-RFB356 is designed to operate with relatively low noise levels, which is beneficial in residential or commercial settings where noise reduction is a priority.

5. **Easy Installation and Maintenance** The blower is designed for straightforward installation, often requiring minimal modifications to the boiler setup. Maintenance is typically simple, involving periodic cleaning of air filters and checking for proper alignment.

6. **Energy Efficiency** Proper airflow from a well-matched blower ensures complete fuel combustion, reducing energy waste and improving overall system efficiency.

7. **Warranty and Support** Fasco products often come with manufacturer warranties, and Weil-McLain dealers may offer additional support, ensuring reliability and recourse if issues arise.

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1. **Potential Compatibility Issues with Modified or Older Boilers** While the FB-RFB356 is designed for Weil-McLain CG boilers, slight variations in boiler models or aftermarket modifications (e.g., upgraded burners or fuel conversions) could lead to mismatched airflow. Always verify compatibility with the specific boiler model and any upgrades installed.

2. **Cost Compared to Generic or Aftermarket Alternatives** Fasco blowers are premium components, and the FB-RFB356 may be more expensive than generic or third-party rotom blowers. If budget is a concern, alternatives may exist, though they may lack the same level of reliability or warranty support.

3. **Limited Availability of Replacement Parts** While Fasco is a reputable brand, some smaller dealers or regions may have limited stock of replacement parts for this specific model. This could lead to longer wait times for repairs or maintenance.

4. **Noise Sensitivity in Some Installations** Although the FB-RFB356 is designed to be quieter than many blowers, it may still produce noticeable noise in very quiet environments (e.g., bedrooms or small offices). Soundproofing measures may be necessary in sensitive locations.

5. **Requires Professional Installation** Incorrect installation (e.g., improper wiring, airflow restrictions, or misalignment) can void warranties and lead to poor performance or safety risks. This blower should be installed by a licensed HVAC technician familiar with Weil-McLain systems.

6. **Potential for Overkill in Smaller Systems** If the boiler operates at very low capacities for extended periods, a 3250 RPM blower may provide more airflow than necessary, leading to unnecessary wear or inefficiencies. However, this is less likely with a properly sized CG boiler.

7. **Depreciation Over Time** Like all mechanical components, rotom blowers may degrade with age, especially if maintenance is neglected. While Fasco blowers are durable, they are not indestructible and may eventually require replacement.

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The **Fasco 70626994 FB-RFB356 rotom blower (3250 RPM)** is a **high-quality, reliable choice** for Weil-McLain CG boilers, offering optimal airflow, durability, and compatibility. Its advantages in terms of performance, efficiency, and support make it a strong investment for homeowners or businesses seeking long-term reliability. However, potential buyers should ensure the blower matches their specific boiler model and operating conditions, as mismatches could lead to inefficiencies or safety concerns.

For most standard CG boiler applications, the **pros outweigh the cons**, particularly when considering the long-term benefits of improved combustion, reduced maintenance, and warranty coverage. If budget is a major constraint, alternatives should be thoroughly researched, but they may not offer the same level of assurance as a Fasco product.

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- You have a **Weil-McLain CG boiler** (verify exact model compatibility).

- You prioritize **long-term reliability, efficiency, and support**.

- You are willing to **invest in a premium component** for optimal boiler performance.

- You plan to **have it professionally installed and maintained**.

- You are operating on a **tight budget** and can find a similarly rated blower at a lower cost (ensure it meets Weil-McLain specifications).

- Your boiler has **unusual modifications** that may conflict with the blower s design.

- You are unsure about **installation or maintenance capabilities** and cannot hire a qualified technician.

**Final Verdict:** For most users, the **Fasco FB-RFB356 is the best choice** for a Weil-McLain CG boiler, balancing performance, durability, and compatibility. Always confirm sizing and installation requirements with a Weil-McLain authorized dealer or HVAC professional.

Details:

Came off of a weil McLain boiler model CGI-4 Pin, Contact with questions, Tested and works well, See pictures for details, Part number 510312370, U62B1, Fasco 70626994, 510312189 Pin questions well details 510312370 U62B1 70626994.

part #: 70626994 prices

• $99.00-$672.66

specifications oelemot:

• brand: Fasco
• mpn: 70626994
• part type: Blower Boiler
• speed: 3450 Rpm
• compatible equipment type: Boiler, Furnace, Hvac System, Air Handler
• custom bundle: No
• motor bearing: Sleeve
• voltage: 115 Volts
• amperage: 1.2 Amps
• frequency: 60 Hz
• compatible equipment make: Fasco, Weil-mclain

seller oelemot:

• rating: 100.0%
• city: Canandaigua, New York
• # reviews: 310

returns oelemot:

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

offer oelemot:

• started: February 2, 2026
• options: Ship-to-home
• best offers: True
• availability: In Stock
• sold: 0
• quantity: 1

general oelemot:

• condition: Used
• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors

shipping oelemot:

• service: USPS Priority Mail
• transit: 3-9 Days
• carrier: USPS
• cost: $0.00
• type: Calculated
• class: Expedited

payments oelemot:

• credit card: Diners-club
• wallet: Google-pay
• money order
• other

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