GeneralAire GF-DH100 Dehumidifier | Installation in Montreal, Laval, Longueuil, South Shore and North Shore
Is it the right size for your home?
It removes 100 pints a day according to the spec sheet. Choose your home's living area, then what you see in the basement.
Living area
What you see in the basement
It's the right size.
For a 2,200 to 2,800 sq ft home with condensation on the walls or windows, you need to remove about 102 pints a day (spec sheet conditions). It removes 100: enough for the house, with some reserve for humid weeks in July.
Calculation: pints a day needed for the living area and the basement's condition, at the spec sheet's test conditions. Our estimator measures the humidity on site before ordering.
What it does, in numbers
$174
Electricity per year
8 h of running a day, May to October
Same calculation for every line: wattage × running hours × 184 days (May to October) × 11.142 ¢/kWh. The unit stops on its own once the target humidity is reached, so its running hours depend on your basement.
Capacities, efficiency and electrical data: manufacturer's spec sheet. Running wattage calculated: litres per day ÷ litres per kWh ÷ 24 h. Cost: Hydro-Québec Rate D, second tier (11.142 ¢/kWh), in effect since April 1, 2026.
What you should know about this one
Published, verifiable facts, not brochure claims.
+3 inThe GF-DH75's footprint
Same width (12.6 in.) and depth (21 in.) as the GF-DH75, only 3 in. taller: 25 more pints a day on the same floor space.
220 cfmMore air, 10 in. ducts
220 cfm with 10 in. ducts, versus 180 cfm and 8 in. on the GF-DH75. For duct runs up to 25 ft, the manual calls for at least 10 in. diameter.
Wi-FiApp and touch screen
Set the humidity on the unit or remotely through the Wi-Fi app, with a help button that links straight to online help topics.
AutoAutomatic defrost
When the coil frosts, the internal thermostat stops the compressor and keeps the fan running until it clears, per the manual.
1.86 LWhat it removes per kWh
Each kilowatt-hour removes 1.86 litres of water from the air. At Hydro-Québec's Rate D, that's about 6.0 ¢ per litre.
40–60%The humidity range to aim for
The range recommended by ASHRAE. Above 60%, a home becomes prone to mold and mildew.
10 °CIt works in a cold basement
Operating range of 10.0 to 32.2 °C per the spec sheet: it keeps working in spring and fall, when the basement is still cool and damp.
MERV 11The filter
Filter: MERV 11, 12 × 12 × 1 in, replace every 6 months. It protects the coil and captures part of the particles in the basement air.
Built-inHumidity control is included
No wiring to an external control: plug it in and it manages the humidity on its own. A wall control is still possible when it's connected to ducts.
5 yrsThe parts warranty
Manufacturer's limited warranty on parts.
What it needs on site
In a finished basement, we put it in the mechanical room and connect it with ducts to keep the noise away from living spaces. Our estimator checks the location, the drain and the duct route before ordering.
Complete spec sheetData and cited sources
- Capacity at 80 °F · 60% RH
- 100 pints/day (47.3 L)
- Energy efficiency
- 1.86 L/kWh
- Power supply
- 120 V · 8.8 A
- Running wattage (calculated)
- ≈ 1060 W
- Ducts
- 10 in inlet and outlet
- Filter
- MERV 11, 12 × 12 × 1 in, replace every 6 months
- Operating range
- 10.0 to 32.2 °C
- Humidity control
- Built-in
- Dimensions (L × D × H)
- 21 × 12.6 × 15.75 in
- Weight
- 65 lb
- Warranty
- 5 years on parts
Capacities, efficiency, power supply, airflow, ducts, filter, operating range and weight: manufacturer's spec sheet. Running wattage calculated: 47.3 L per day ÷ 1.86 L/kWh ÷ 24 h. Costs: Hydro-Québec Rate D, second tier (11.142 ¢/kWh), in effect since April 1, 2026.
The next model down and up
Talk to an HVAC technician before you choose
We measure the humidity on site, check the drain and the duct route, and give you an installed price.
The Ultimate Guide to GeneralAire GF-DH100 Dehumidifier
AirGreen's Comprehensive Review and Insights
Introducing the GeneralAire GF-DH100 Dehumidifier
At AirGreen, we pride ourselves on offering the best HVAC services across Montreal, Laval, Longueuil, North Shore, and South Shore. As part of our commitment to ensuring optimal indoor air quality for our clients, we've delved deep into one of the most sought-after products in the residential HVAC market: the GeneralAire GF-DH100 Dehumidifier.
Why Opt for the GeneralAire GF-DH100?
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Whole-House Treatment: Unlike conventional dehumidifiers, the GF-DH100 is designed to treat your entire home, ensuring consistent humidity levels in every corner.
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Minimal Maintenance: Say goodbye to frequent check-ups. This unit requires minimal upkeep, allowing you to enjoy a comfortable environment hassle-free.
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Silent Operation: Despite its powerful performance, the GF-DH100 operates quietly, ensuring no disturbances in your peaceful abode.
The Impacts of Excessive Moisture and the GF-DH100 Solution
Excessive moisture in homes can lead to a plethora of issues:
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Health Concerns: High humidity fosters mold and mildew growth, which can deteriorate air quality and exacerbate allergy and asthma triggers.
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Pest Attraction: Moist environments attract pests. By maintaining optimal humidity, you can keep these unwelcome guests at bay.
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Home Damage: Excess moisture can cause condensation on windows, walls, and other surfaces, potentially damaging woodwork, drywall, and metals.
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Unpleasant Odors: Musty odors are a common consequence of high humidity. With the GF-DH100, your home will always smell fresh.
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Elevated Electric Bills: Over-relying on air conditioners to combat humidity can spike your electric bills. The GF-DH100 efficiently reduces humidity, ensuring comfort without the added costs.
Key Features of the GeneralAire GF-DH100
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Wi-Fi & Touch Screen Control: Adjust settings from virtually anywhere. The future is here, and it's at your fingertips.
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Integrated Carrying Handles & Adjustable Feet: Designed for convenience and stability.
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MERV 11 Filter: This pleated filter protects the coil and captures part of the fine particles in the air; GeneralAire recommends replacing it every 6 months.
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Low-Temperature Shutoff: Safety first! This feature ensures the dehumidifier operates only in safe conditions.
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5-Year Warranty: A testament to its durability and the trust GeneralAire places in its products.
GF-DH100 Specifications at a Glance
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Capacity: Up to 100 pints per 24 hours at 80°F / 27°C - 60% RH.
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Dimensions: 15.75 H x 12.6 W x 21 D inches.
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Power Supply: 120VAC, 60Hz.
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Energy Factor: 1.86 liters/kwh.
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Air Flow: 220 CFM.
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Inlet Air Operating Temperature: 50°F - 90°F / 10°C - 32°C.
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Noise: Less than 55 dB (unducted).
In Conclusion
The GeneralAire GF-DH100 Dehumidifier is more than just a device; it's a comprehensive solution to a myriad of challenges posed by excessive indoor humidity. At AirGreen, we believe in offering products that truly enhance the quality of life for our clients. With the GF-DH100, we're confident that you'll breathe easier, live healthier, and enjoy a more comfortable indoor environment.