attic fan, attic fans, solar fan, solar powered attic fan, power attic venting, gable fan, attic venting, energy conservation

610 E. Bell Rd. Suite 350 Phoenix, Arizona 85022

Powered Attic Venting

POWER VENTING

The importance of venting your attic cannot be overlooked.  In cold climates, improper venting can lead to moisture build-up which causes mold to grow, wood rot in extreme cases or even ice in the attic insulation.   In hot dry climates, stagnant air can dry out your trusses, increase your energy costs for air conditioning and make your house uncomfortable. 
If your home is like most that we inspect, it is severely under vented.  You can add more soffit and exhaust vents but at what cost?   Power venting may be a more cost effective and  efficient method of achieving your goal.   However, venting is just part of the problem.   A well ventilated attic will reduce the convective load.  The largest component of heat gain or heat loss in any home is infrared heat.  Control this and you can really save!
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Click here to visit our comprehensive attic venting page

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This shows a typical home store attic fan installed on a gable vent inside the attic.  Although the mounting looks secure, the application is incorrect since the space around the fan is not blocked off.   The fan will create a negative pressure behind the fan and will draw air from the closest point, in this case, from vent openings around the fan.
This means very little air will be exhausted from the attic and most of it will be drawn in around the fan.  
The open area around the fan shroud (the round ring), needs to be blocked off with cardboard or wood to make this type of installation effective.  We see this type of installation on almost every home that has one!

Power Fans:
Natural attic venting is best but in many homes a powered attic ventilator is more cost effective, especially in tile roofs.  
WE DO NOT RECOMMEND SOLAR ATTIC FANS, THEY JUST DON'T MOVE ENOUGH VOLUME.  Great for a shed or small area, not sufficient CFM air movement for a home attic.  

 

We import a vibration free, powerful, reliable powered attic fan manufactured in Germany.  This attic fan is unlike any other available:  quiet, powerful and very efficient.
We include an adjustable thermostat and an optional mounting box with this system.  This fan features an external rotor to which the fan blades are welded.   This unique design reduces blade flex and vibration and eliminates one of the shaft bearings.  The bearings are sealed and never need attention.  Install it, set the thermostat and forget about it.  The 14" fan consumes 245 watts.  At a national average
of .10/kwh running for eight hours a day that's less than $6 per month.  There are sites on the 'net that say the power consumption of an attic fan does not offset the cost of running it.  The goal is keeping your A/C off as much as possible which consumes 1600 watts per ton.  Logic would dictate running a fan for $6/month would be preferable to longer run times on your A/C unit from the stagnate, overheated attic air and the load on your ceiling.  To save even more, click here.

Pictured here is our 14" fan correctly installed by one of our customers.  Notice all of the vent openings around
the fan are blocked off to prevent air from coming in around the fan.  This is critical to good performance in the installation of any fan.
The optional sheet metal mounting box makes installation straightforward, fast and secure.  The thermostat and
mounting box which is included is mounted 12' from the fan to sense the attic temperature.  Set it at 105f and forget this fan is running as no maintenance is required.                                     

Costs 2 cents per hour at .10/KWH to operate!  That's pennies per day.  Unconditional satisfaction guarantee.

To place an order click here

Warning: In homes that have gas appliances such as water heaters or furnaces in the attic, great care must be taken to insure adequate intake venting is provided (gables/soffits), so as to not create a negative pressure that will draw fumes down the chimney of gas appliances.   Installing an attic fan in this application has the potential for fire or filling your attic with carbon dioxide.  Just make certain there is sufficient intake openings to circumvent this situation.      

    Construction Features

•    No maintenance required 
•    The 14" fan has twice the power (and capacity), of a home store fan
•    Adjustable thermostat included
•    2 cents per hour at 10 cents per KWH (25 cents per day/$7.50 per month)
•    CFM @ 0.0 " SP: 1839 cubic feet per minute  (Actual, not estimated)
•    Integral Blades and External Rotor allowing precision balancing
•    Formed steel wall panel with Venturi
•    Shallow profile with no protruding motor 
•    External rotor motor, class B insulation.
•   Quality design provides long and maintenance free operation for many years
•    Automatic Reset Thermal Overload Protection
•    Electro statically applied polyester/epoxy urethane powder coat finish
•    Self lubricating, sealed for life precision ball bearings
•   Can be installed in gable vent  or under dormer vent

To place an order click here

Specifications
Performance Data

Fan Model	RPM	Volts	Max. Watts	Max. Amps	0"	.100"	.125"	.25"	.375"	.5"	Sones**
8" PAV	1550	115	45	0.41	304	246	224	74	-	-	4.1"
10" PAV	1500	115	68	0.62	624	558	533	377	132	-	7.9
12" PAV	1400	115	130	1.19	1208	1069	1030	797	-	-	9.4
14" PAV	1200	115	245	2.24	1839	1654	1599	1295	-	-	9.6
16" PAV	1400	115	458	4.19	3054	2882	2839	2570	2198	1699	12.0
18" PAV	1550	115	698	6.39	4115	3895	3840	3549	3239	2908	14.3
20" PAV	1100	115	435	3.98	3693	3368	3279	2775	1429	-	10.7
20" PAV	1450	115*	916	8.39	4949	4682	4615	4274	3917	3445	16.4
22" PAV	1000	115*	756	6.92	5629	5248	5153	4432	-	-	12.
25" PAV	1000	115*	1134	10.38	7858	7355	7230	6567	-	-	14.8

** The sound ratings shown are loudness values in fan sones at 5ft. (1.5m) in hemispherical free
 field calculated per AMCA Standard 301. Values shown are for installation Type A: Free inlet fan
 sone levels. All sone values shown are calculated at 0.1" (static pressure in inches W.G.).

Specifications
Unit sizes and dimensions

Which fan looks like it's more efficient at moving air out of your attic?  Over the years we have found home store attic fans to be a liability to our installations and the only weak link in our proven NRG Package.  Since a properly installed radiant barrier increases attic air temperature by keeping unwanted heat from getting to the insulation, removing this waste heat has forced us to become experts in attic ventilation.
Home store fans like the one pictured are under powered, last one year (if that), and the Chinese thermostat is inaccurate, sticks on (or off), creates call backs and problems.  Sure the nice one costs more but like anything else, you get what you pay for. 

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Price includes the fan with thermostat and 15' of control wire pre-wired to the thermostat which speeds up the installation.  You need only to mount the fan, mount the thermostat and bring a 110volt power supply to the thermostat.  Prices below also include UPS ground shipping.  We strongly suggest the sheet metal support box to facilitate the installation...it's the best $35 you'll ever spend. 

 

 

 

 

 

 

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PRICING

10" fan   624 CFM     $287   (For attics up to  700 square feet)

12" fan 1208 CFM     $305  (For attics up to 1375 square feet)

14" fan 1800 CFM     $349  (For attics up to 2800 square feet)  

16" fan 3054 CFM     $387  (For attics up to 3950 square feet)

To place an order click here

Pricey?  They sure are, you could buy four home store fans for the price of one of these....then plan on replacing it every year because that's how long they last (see testimonial below).   I don't know about you but I would rather have a root canal in Mexico than spend a Saturday morning in a hot attic replacing the fan under warranty.   Once this job is done, you never want to see it again.   This one you won't because of the quality, the thermostat and sealed motor bearings that never need lubrication.   

If you open the box upon delivery of this item are not totally impressed with the craftsmanship and quality, return it for a full refund.  We'll even pay for the return shipping!  We are that confident of this item.  We do not offer any product on our site that we have not field tested and trust for our online customers.

 

Shown with optional fan mounting box and 12' of romex  pre-wired to an accurate, adjustable thermostat.  You need only to mount the included 2"x4" junction box (near the peak of the roof), and supply a source of 110v power to the thermostat.  We've done most of the work for you!  Shown here is the blue plastic junction box with the unit pre-wired, just add power! Set the Thermostat at 110f and forget about it, no oiling, no service is needed.

Simply mount what you see to the left over a gable vent or large size roof vent (at least 14"), and start saving.  Most of the work is done already!  You will need a hammer to mount the blue box, a screwdriver and drill to mount the sheet metal box to the vent.   The thermostat is even pre-wired to the fan!


Installing an attic fan only addresses convective heat.  To reduce the radiant heat load in summer and keep heat in during the winter, click here

We fabricate this sheet metal fan box for our Phoenix installations and thought we should offer it to our online shoppers as well.  
The design allows for a smoother discharge of air as it fully takes advantage of the aerodynamic design of  the shroud and large side flanges makes it much easier to install.   Cuts the installation time as the fan is pre-mounted to the box.  Just hold the box up to the
wall or roof and screw in the entire assembly.

$35 and no shipping cost if included with fan order

 To place an order click here

This just in from a customer in the Midwest:

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