Motoasis Model 8814R Copper Motor Upgrade for Nutone 9x9 Fans — 110 CFM, 3.5 Sones

Overview

The Motoasis Model 8814R is an upgraded motor solution designed to refresh your bathroom ventilation without a full fan replacement. Featuring a copper motor and solid build quality, it delivers 110 CFM of airflow while maintaining a balanced 3.5 sones for a quieter bathroom environment. This combination aims to help you move air efficiently when you need it most, with a focus on reliability and ease of installation.

Compatibility and fit

The 8814R is designed for a broad family of 9" x 9" Nutone fans. It supports models in the 8814, 8663, and 8673 series, including variants such as 8663RP B, 8664RP B, and several 6445/6445B/6445RP B configurations. In short, if your current unit uses a 9"x9" blade, this upgrade is positioned to align with your existing system with a straightforward swap.

• Compatible with Nutone 8814, 8663, 8673 series and their 9"x9" blade family.
• Includes alignment with related models like 8663RP B, 8664RP B, 6445/6445B/6445RP B variants.
• Designed for easy replacement without major modifications to the enclosure.

Upgrade benefits

• Upgraded pure copper motor offers improved stability and longevity compared to older aluminum-plated copper designs.
• Durable construction aims to reduce maintenance while preserving efficient airflow over time.
• Replacement path that can save money versus purchasing a brand new bathroom fan.
• Simple, tool-light replacement with guidance that helps most users complete installation in about 10 minutes.
• 3-year manufacturer defect replacement service provides added peace of mind for non-human factor issues.

What to expect in operation

With a 35W AC motor, the 8814R emphasizes a practical blend of airflow and noise. The unit’s 110 CFM output indicates robust air movement for typical bathrooms, while the 3.5 sones rating suggests a conservative sound footprint during normal use. These figures may vary with duct runs, elbows, and fan housing designs, so consider the upgrade within the context of your space and ventilation goals.

Installation and aftercare

Assembly is described as straightforward, with an emphasis on minimal tools and uncomplicated steps. The design prioritizes compatibility and a secure fit, aiming to minimize downtime. If you’re refreshing an aging system, this upgrade offers a practical way to restore normal operation and performance without a full unit swap.

Technical specifications

• Voltage and frequency: 60 Hz
• Power: 35W AC
• Airflow: 110 CFM
• Sound: 3.5 sones

In sum, the Motoasis 8814R presents a measured, practical upgrade path for compatible Nutone fans. It leans into durable materials, a balanced performance profile, and a warranty-supported confidence, all while keeping installation approachable for do-it-yourself enthusiasts.