| Type | Roof Mount Whole House Fans |
| Fan Voltage | 120V AC |
| Coverage (Square-Ft.) | 2220 to 3439 |
| CFM High | 3,543 cfm |
| Requires | 24 in Center Joist |
| CFM Medium | 3,205 cfm |
| Hz | 60 Hz |
| Height (In.) | 27 in |
| Watts | 451/316/219 W |
| Includes | Accessory Bag, Cut-Out Template, Plenum Box with brackets, RF Wireless Control Kit, RM WHF-4.0 Fan |
| Housing Material | Steel |
| Number of Blades | 3 |
| Housing Finish | Powder Coated |
| Motor Type | Electronically Commutated |
| Phase | 1 |
| Fits | 24 in Center Joist |
| Item | Whole House Fan |
| CFM Low | 2,878 cfm |
| Amps | 5.5/3.9/2.8 A |
| Wattage | 377 W |
| Drive Type | Direct Drive |
| For Cut-Out Width | 22 1/2 in |
| Nameplate Voltage | 120V AC |
| Maximum Airflow | 3,543 cfm |
| Coverage Area | 1,831 sq ft |
| Grille Material | Aluminum |
| Nominal Voltage | 115V AC, Single Phase |
| Quiet Design | Yes |
| Includes Grill | Yes |
| Material | Steel Blade with Steel Housing |
| Maximum Airflow - Range | 3,000 to 4,999 cfm |
| Speed Controllable | Yes |
| Grille Width | 22 in |
| Blade Diameter | 22 in |
| Rough Opening Type | Square |
| High-Efficiency Motor | Yes |
| Blade Material | Steel |
| Rough Opening | 22 1/2 in Square |
| Maximum Noise Level | Not Applicable |
| Grille Length | 22 in |
| Number of Speeds | 3 |
| For High-Static Pressure Applications | Yes |
| Maximum Coverage Area | 3,439 sq ft |
| For Cut-Out Height | 22 1/2 in |
| Grille L x W | 22 in x 22 in |
| Standards | UL Listed |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |
RM WHF-4.0-PL Steel Roof Whole House Fan, QUIETCOOL, Mfr# RM WHF-4.0-PL
$2685,99
Free shipping will be applied on orders over $50
Whole House Fan, Mounting Location Roof, Quiet Design Yes, Number of Speeds 3, Nameplate Voltage 120V AC, Speed Controllable Yes, Blade Diameter 22 in, Drive Type Direct Drive, Maximum Airflow 3,543 cfm, Maximum Noise Level Not Applicable, Wattage 377 W, Coverage Area 1,831 sq ft, Rough Opening Type Square, For High-Static Pressure Applications Yes, High-Efficiency Motor Yes, Number of Blades 3, Blade Material Steel, Housing Material Steel, Grille Material Aluminum, Standards UL Listed
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