Cool Attic CX1000AM Power Attic Roof Mount Ventilator with 2.6-Amp 60-Hz Motor and Steel Flange, Galvanized Steel Dome
by Ventamatic
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Product Details
Manufacturer: VentamaticModel: CX1000AM
Color: Mill
Product features:
- 2.6-Amp 115-Volt 60-Hz motor
- Galvanized steel dome mill finish
- Attics up to 1,600 square feet
- Adjustable automatic thermostat
- Prolongs life of composition roof shingles with lower summer attic temperatures
Description of Cool Attic CX1000AM Power Attic Roof Mount Ventilator with 2.6-Amp 60-Hz Motor and Steel Flange, Galvanized Steel Dome
Galvanized steel venturi construction. Low profile galvanized steel dome has galvanized steel mesh grill to protect against insects, birds, and rodents yet allows adequate air intake. Motor is UL & C-UL listed; thermally protected with built-in, automatic cut-off; engineered to run cool for long life; automatic adjustable thermostat. Precision balanced aluminum fan blades for minumum vibration. 6-point suspensions (anchor points) for stability and high wind resistance. Will ventilate 1600 sq. ft. attic. 1080 CFM. 1.9 motor amps, 115V, 60 HZ motor. 14" fan. 600 sq. in. intake. Suitable for up to 8/12 roof pitch. 2 year limited warranty. No. CX1000AM: Mill No. CX1000AM-WG: Weathered grayTools and Hardware Reviews of Cool Attic CX1000AM Power Attic Roof Mount Ventilator with 2.6-Amp 60-Hz Motor and Steel Flange, Galvanized Steel Dome
Customer Review: Excellent air flow
Summary: 5 Stars
First of all, I'd like to say that I live in Houston, TX. For those who don't understand what that means, please boil some water and stand over it. That's a hyperbole, but it's Hot & it's humid. I've lived along the gulf coast all of my life and am used to this. We purchased our home two years ago (it was built 2003) and have had a hard time cooling our home during the summer barely making it to 77º or 78º (F). From the moment the sun comes up our air conditioner fights a losing battle. During one summer I was up in the attic and discovered through using a thermometer that we were hitting 140º to 150º in our attic. We had 3 passive roof vents which were not allowing enough air to escape. This reminded me of the home inspector who stated something similar to that before we purchased.
After much research I discovered that hot air rises through the soffit vents on the ridges of our house and is supposed to escape through vents in the roof. While that may happen in properly designed systems, ours was failing the test miserably. I researched solutions from adding more passive vents, to replacing our smaller (10" diameter) vents with larger, to having a roofer install a ridge vent (super-expensive option), to solar powered vents, to these electric powered vents. After debating the pros and cons of each I decided on these. At the time there were only two reviews, which gave me concern, but I decided to try them.
I found numerous websites which helped me on how to install them. I replaced two of my passive vents on my roof with these. This entailed removing the old vents, expanding the hole in the roof to the 14" diameter requirement (Used a hand held jigsaw from Home Depot), cutting back the tiles by 1.5" to account for the raised cylinder portion (Box cutters) and then shoving the vent's upper flashing under the upper half of the roof tiles. This sounds complicated, but it's really not. I did have to remove several of the nails in the way, but replaced them or used roofer's cement ($1.50 at Home Depot). The entire roofing installation process took about 3 hours. If you've never worked much on roofs like me, please be slow and sure footed. We have a fairly sharp pitched roof and I don't want anyone to get hurt.
After the vents are installed on the roof, the next step is to wire the fan into the house electricity. I connected the two different fans on two different existing circuits in the house. Before the fans were even running I noticed that air was moving in the attic. I set the main fan to 95º as many recommend and the secondary one over the master bedroom to 90º since it is a southern exposed section of the house and is constantly hotter than the rest of the house.
Results? The best result I can give is this since it isn't summer yet. During the installation the outside temperature was 71º. The attic was hitting 98º before I turned them on, so we had a 27º difference from the outside temperature without the fans. Yesterday March 20, 2011 it was 85º outside my home at 3PM. I climbed up into the attic and the attic was only 90º. I call that a huge success.
What about noise? While some people are concerned that attic vent fans make noise, I can say that these cannot be heard in a one-story house. Once you climb into the attic you can hear them running, but it's a soft sound.
I can't give results on better energy efficiency yet. I have noticed that on multiple days our A/C never even came on, which is a positive sign. If the attic is not heating up as quickly then the air conditioner can stay off longer cut off sooner at night and since it is the biggest energy hog around our home during the summer that should translate to an overall savings of electricity. I will update towards the end of summer to inform of my findings.
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