Honeywell 527SHON104BLK 20-Watt Roof Mount Solar Powered Attic Fan

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Product Feature

• Ventilates up to 1850 square feet
• Thermostat controlled
• Adjustable commercial grade 20 watt solar panel
• Limited 5 Year Warranty on Motor - 20 Year Warranty on Solar Panel
• May qualify for federal and/or local tax rebate
• Adjustable commercial grade 20-watt solar panel
• Limited 5-year warranty on motor and 20-year warranty on solar panel
• Ventilates up to 1850-square-feet

Product Description

Honeywell 20 Watt Roof Mount Solar Attic Fan Help reduce energy usage by exhausting hot air from attics by using a solar powered attic fan. Reduce potential mold and increase roof life by exhausting moist air. A whisper quiet 24 volt motor is powered by an industrial grade 20 watt solar panel that is thermostatically controlled; if the conditioned space reaches 85 degrees, the motor turns on, and once it cools to 65 degrees, it will shut off. Unit will condition up to 1850 square feet. Powered by solar energy, there is zero cost usage, and it does not require an electrician to install. The durable Grade 5 ASB shroud is impact and UV resistant. Shroud and panel are adjustable to maximize sun exposure. Oversized galvanized & powder coated flashing resists rust and protects against leaks. Wire mesh keeps unwanted rodents out. Limited 5 year warranty on the fan and 20 year warranty on the solar panel. May qualify for federal and/or local tax rebates.

Honeywell 527SHON104BLK 20-Watt Roof Mount Solar Powered Attic Fan Review

Product appeared well built, and installation was fairly easy.

The fan had pretty good power and was fairly quiet. However, the complete solar panel has to be in direct sunlight in order for the fan to have enough power to turn on; there is no reserve battery in the unit. I called the customer support number of Quality Craft in Canada, the manufacturer of the fan, and they confirmed that the entire cell has to bein direct sunlight.

I was pretty happy until we got our first sizable rain storm. I found the fan was leaking in my attic, with about a drop every 4-5 seconds. I knew my installation was not the cause of the leak. When the rain stopped, I went to my roof and took off the entire hood (4 screws). With a spray bottle, I found out that the leak was coming from the seam between the sheet metal flashing and round shroud of the fan. The seam was not rivited, and it did not look like it was spot welded nor soldered, so my guess is that it was probably glued. Regardless of how it was fastened, it looks like the paint was the only thing that kept the seam waterproofed. I did not actually find the pinhole, but I proceeded to seal the seam with a commercial grade brush on rubber (similar to the 3M spray on rubber you can get at Home Depot). After the rubber dried the next day, I tested the seam extensively again and again, and the leak was gone. It's held up after several more big rainstorms, so I am 100% convinced that it was a defect in the product that caused the leak. I think it is a good product for the price I paid, but the manufacturer and Honeywell need to have a quality control process implemented for these products. I probably just got a bad unit, but the damage would have been great if I did not catch the leak early.

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