The next generation of whole house fan controls have shipped.
Some of the features:
We’re testing and finalizing details on the new AirScape roof mounted whole house fan. This model will mount directly on the roof. It’s intended for houses without attics. Here are some of the features:
More information to follow…
We’re happy to announce that the 4.4e WHF is currently in stock and we’re moving product out the door.
What makes this an “e” ? The motor is an ECM (electronically commutated motor) which when matched up with the efficient blade design gives a great power profile and low noise.
See the details here: http://airscapefans.com/products/Shop/Natural-Cooling/Whole-House-Fans/AirScape-4.4e-WHF
The following graph shows the energy use profile of the 4.4e as compared to the theoretical efficiency of a fan system.
The Kohilo Whole House Fan is designed to be more financially available (yes, that is a genteel word for cheaper) than our flagship units. How did we do this ? We replaced the motorized damper unit and electronics board with a backdraft damper.
A backdraft damper is pushed open with airflow and falls back (by gravity) when the fan is off. This provides a basic seal (nothing like our motorized dampers), but has no insulation. In severe climates the Kohilo grille will have to be manually insulated at the end of the season. We do provide an upgrade path for customers so that they can upgrade to the full AirScape functionality and convenience.