This operates on a single speed (high at 800 cfm) and is used in solid roof or sidewall applications for whole house cooling where interior attic installation is impossible. The solid roof/wall whole house fan is a roof mounted attic/whole house fan. It is a roof mounted attic/whole house fan. It is installed in a solid roof with plenty of flange area for flashing it into place. The unit can be installed horizontally or vertically and can be spaced out to the ceiling below with a "thimble". A return air grille finishes the product off. This is quietly moves 800 cfm and includes an insulated, motorized damper mounted under the external hood to seal the unit off from inclement weather. Features 800 cfm R-10 Insulated Whole house fan for solid roof or outside wall installation. Color – White Includes an SPST control for operation. Energy efficient No maintenance Dimension – 28 x 24 x 38 in. Item Weight – 13 lbs.
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