Whole House Fan, Belt Drive, 2 Speed, Propeller Dia 30 In, CFM High 5900, CFM Low 3900, HP 1/3, Fan RPM 455/305, Voltage 115, 60 Hz, Single Phase, Amps 6.7/4.7, Height 15 In, Width 34 In, Depth 34 In, Ceiling Mounting Location, Requires Ceiling Shutter, Includes 1x4 Wooden Plenum Box, Rubber Mounting Gasket, Two-speed switch and 12-hour timer

Whole House Fan, Belt Drive, 2 Speed, Propeller Dia 42 In, CFM High 12000, CFM Low 7900, HP 1/2, Fan RPM 410/270, Voltage 115, 60 Hz, Single Phase, Amps 8.2/4.4, Height 15 In, Width 46 In, Depth 46 In, Ceiling Mounting Location, Requires Ceiling Shutter, Includes 1 x 6 Inches Wooden Plenum and 3/4 x 7/16 Inch Adhesive-backed Sponge Rubber Mounting Strip, Two-speed Switch and 12-hour Timer

Master Flow® Belt Drive Deluxe Whole House Fans
30BWHFS

For homes up to 1500 sq. ft. the AirScape 1.0 shares many of the features of the larger 1.7. Also two-speed, it delivers 1000 CFM to cool your space down fast. At low speed, it delivers 600 CFM of whisper-quiet flow so you can sleep in cool, fresh, quiet comfort while your house is cooled all through the night — so the next day your house will stay cool longer.

For homes up to 2500 sq. ft. the AirScape 1.7 is the most advanced whole house fan on the market, with an unbeatable combination of high power, low noise, energy efficiency and robust engineering. This unique design delivers 1700 CFM on high speed to cool your house down fast. On low speed, you get 1000 CFM of whisper-quiet airflow; so you can sleep in cool, fresh, quiet comfort, while your house is cooled all through the night to reduce heat load the next day.

For homes up to 3500 sq. ft. the AirScape 2.5 delivers the airflow required for larger homes while maintaining the low-noise profile that AirScape is famous for. In fact, this is our quietest unit. An exceptionally robust industrial-grade fan, isolated through a noise-deadening ducted design puts the 2.5 in a class all by itself. It's more expensive to build, and requires a little more energy to run than the 1.7, but the performance -- in terms of both airflow and noise -- is truly exceptional.

THIS FAN HAS BEEN OUT OF PRODUCTION SINCE APRIL 2009

For homes up to 6000 sq. ft. the AirScape 4.5 delivers the high airflow required for larger homes while maintaining the low-noise profile that AirScape is famous for. In fact, this is both our most powerful AND our quietest unit. How is this possible?

The Comfort Stream™ is a high-powered, multi-port, utility or cooling fan. This is the only product available that is capable of being used as a "hybrid cooling system™" that works by drawing cool, outside, evening air through open windows, up throgh the attic and exhaust directly to the outside. Exhausting directly to the outside eliminates pressurizing the attic as traditional whole house comfort ventilators do, allowing the attic to be sealed while still allowing hybrid, differential cooling.

• Power Full Speed - 2 Fans @ 138 Watts Each
• Air Flow: Full Speed 1450 CFM
• Weight: 15 lbs Shipping: 25 lbs
• Fits 16" or 24" on center ceiling joist
• Rough Opening: 14.5" x 22.5"
• Interior Grille: Outer Dimensions 15.75" x 25.75"

 Ships Same Business Day Ordered  

The Ghost is a whole house fan that mounts easily on top of the rafters in the attic and effectively draws 2800 cubic feet of air per minute through the house.   The Ghost's unique design includes a small lower housing that fits between 16" or 24" on center rafters.  Internal motorized and insulated doors open into the fan chamber when the unit is turned on, then the 20" diameter fan blade begins drawing the air out of the living space and into your attic.

This whole house exhaust fan from Tamarack Technologies will slowly reduce the indoor air temperature of smaller to modest-sized homes (600 to 1,500 square feet). Turning the fan on in the evening during hot, summer months will gradually exhaust the stale air in the house through existing attic vents allowing cooler, outside air to be drawn in on the lower floors.

This whole house exhaust fan from Tamarack Technologies will slowly reduce the indoor air temperature of moderate-sized homes (1,200 to 2,500 square feet). Turning the fan on in the evening during hot, summer months will gradually exhaust the hot, stale air in the house through existing attic vents allowing cooler, outside air to be drawn in on the lower floors.

• Insulated flexible 12" diameter ducting R8 manufactured with a tri-directional fiberglass scrim, reinforced, metalized, polyester outer jacket.
• Underwriter Laboratories listed and complies with NFPA Standards 90A and 90B;
• Air-tight Inner Core - Energy efficient / No fiberglass erosion into air stream;
• Smooth Inner Core - Low friction loss / low operating cost;
• R8 fiberglass insulation - Energy efficient - classified by Underwriter Laboratories;
• Tough, reinforced, metallized polyester jac