HOLMES Dual 8" Blade Twin Window Fan with LED One Touch Thermostat Control
- Two fans, each independently reversible
- 2 speeds with a one-touch thermostat
- 24 to 37 inch windows with extenders
- 75 watts on 120 volts
- 7.5 pounds, 6D x 13.3W x 25.5H inches
- Water-resistant motors
- 3 year warranty
Last refreshed Oct 3, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Two fans that can each run in or out, cycled by a thermostat. It fits double-hung, slider and casement windows within the extender range, and the listing is inconsistent on blade size.
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ASIN: B000065DK8Model: HAWF2043-NCategory: Window Fans
Overview
Not a box fan, this Holmes unit puts two fans in one frame that each reverse electronically to draw air in or push it out. An adjustable extender screen and an extender panel fit it to the window, and it arrives fully assembled.
Independent reversing is the point: one fan can bring in cooler outside air while the other exhausts stale indoor air, or both can move air the same way. A one-touch thermostat switches the fans on and off to hold a chosen temperature. Speed choice is limited to two settings.
Who it's for
Bedrooms and small rooms behind a vertical-slider, casement or double-hung window that need to swap indoor and outdoor air. Households wanting more speeds or a fan for a very wide opening should look at another model.
Pros and cons
- Each fan reverses independently
- Thermostat cycles fans automatically
- Extender screen and panel included
- Arrives fully assembled
- Two speeds only
- Blade size listed inconsistently
- Window width limited to extender range
Performance notes
Each of the two motors reverses electronically, so the unit can take in fresh air, exhaust stale air or exchange air by running one fan each way. The thermostat turns the fans off and on to hold the selected temperature, and the two speeds set how much air moves. The extender screen and panel close the gap between frame and window opening.
Specifications
| Brand | HOLMES |
|---|---|
| Model | HAWF2043-N |
| Dimensions & fit | |
| Item Dimensions D x W x H | 6"D x 13.3"W x 25.5"H |
| Window width range | 24 to 37 inches |
| Weight | 7.5 pounds |
| Capacity & performance | |
| Number of Speeds | 2 |
| Wattage | 75 watts |
| Power & efficiency | |
| Voltage | 120 volts |
| Construction & materials | |
| Finish Type | Powder Coated |
| Color | White |
| Compatibility & installation | |
| Mounting Type | Window |
| Included components | |
| Included Components | Adjustable Extender Screen, Extender Panel, Water-Resistant Motors, Twin Window Fan |
| Warranty & support | |
| Warranty Description | 3 yrs. |
| Other details | |
| Motor Type | Brushless |
| Indoor Outdoor Usage | Indoor |
| Controls | Button Control |
Closest rivals on specs
COMFORT ZONE Triple Window Fan with 3-Speeds & Expandable Width- Wattage 75 vs 84 watts (-11%)
- Blade Length 6 vs 5 inches (+20%)
- Item Weight 7.5 vs 6 pounds (+25%)
shinic Twin Window Fan- Blade Length 6 vs 9 inches (-33%)
COMFORT ZONE Reversible Twin Window Fan with Rotating Heads and 2 Speeds- Wattage 75 vs 46 watts (+63%)
- Blade Length 6 vs 7 inches (-14%)
- Item Weight 7.5 vs 5.8 pounds (+29%)
Frequently asked questions
What comes in the box with the Holmes twin window fan?
The listed components are the twin window fan, an adjustable extender screen, an extender panel and water-resistant motors. The description says it arrives fully assembled.
Does the Holmes twin window fan fit every window?
It is designed for double-hung, vertical-slider and casement windows. The built-in and extra extenders cover widths from 24 to 37 inches.
Can the Holmes twin window fan exhaust air as well as draw it in?
Yes. Each fan reverses independently, so it can intake, exhaust, or exchange air with one fan each way.
Can the Holmes twin window fan be used in the rain?
The description says the water-resistant motors make it safe in rainy weather, though the usage is listed as indoor.