This whole house exhaust fan from Tamarack Technologies will slowly reduce the indoor air temperature of moderate-sized homes (1,200 to 2,200 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. Unlike conventional whole house fans that draw thousands of cubic feet of air per minute and help occupants feel cooler by creating a breeze, these fans move air much more slowly - gradually lowering the indoor air temperature with cooler outdoor evening air over the course of many hours. This model fan features a two speed control. On low speed 900 cubic feet of air per minute (cfm) will be exhausted. On high speed 1600 cfm of air will be be moved.
When not in operation, the automatic motorized insulated door (R-22)assembly closes tightly over the fan to provide an airtight seal. The door requires about 30 seconds to fully open or close. The 14" x 24" white grill attaches to the ceiling below for a clean, finished appearance. The fan will sit on either 16" on center or 24" on center rafters with no rafter cutting. It may be mounted vertically to exhaust from catherdral or vaulted spaces. In the attic, sufficient free air ventilation is required to exhaust the air being pushed into the attic from the fan. In the case of this fan, this means a 1.6 to 3.2 square foot screened opening or equivalent. In order to physically carry the fan into the attic, a 10 by 19 inch (or larger) open is required.
This unit comes with a wireless remote control. The transmitter features a signal operating light that goes on when the ON or OFF buttons are depressed. The control offers 256 unique security codes that are factory programmed into the system allowing multiple remote control units in the same building. The system's operating distance is 60' and is not restricted to "line-of-sight" applications because the system uses radio frequency control (303.875 MHz). The control is UL listed and is FCC certified in the U.S. and I.S.C. certified in Canada.
Fan Voltage/Power: 115 volts AC 60Hz, 276 watts
Lift Motors Voltage/Power: 115 volts AC 60Hz, 6 watts
Cover R-Value: 22
Sound Level: not rated, but substantially louder than the 3 sone rating of the HV1000 (perhaps 6 to 7 sone).
