Main trade-off
AprilAire E080
Its published airflow falls more sharply under duct resistance. Check the actual pressure rather than assuming collar size proves compatibility.
Head-to-head
AprilAire E080 vs E100: E100 keeps the cabinet size and more airflow under duct load
The short answer
Choose E100 when an installer confirms that the moisture load or duct resistance calls for its higher capacity and stronger fan curve. At 0.2 inches of static pressure, E100 delivers 245 CFM against E080’s 135. Both have the same 14 by 26 by 15 inch body and ten-inch collars. E080 remains a reasonable choice when its capacity and pressure capability satisfy the design and its current total installed price is preferable. Neither includes a pump or solves inlet conditions below the manual’s operating limits.
Before you choose
The reasoning and the trade-offs
The duct path can matter more than the twenty-pint difference
At zero external static pressure, the published airflow is 185 CFM for E080 and 280 for E100. At 0.2 inches water column it is 135 and 245. That means the longer or more restrictive duct route in a finished home can change the practical value of the upgrade. A qualified installer should calculate the actual resistance before choosing. The numbers support a fan-performance distinction, not a claim that E100 removes a particular amount more water through your ducts.
What this is based on
Manufacturer fan curve at matched pressure points crossed with an existing duct route. Maximum design static is 0.4 for E080 and 0.6 for E100. Airflow is not converted to extraction.
Main trade-off
AprilAire E100
Higher capacity does not remove drain, temperature or filter-access requirements. There is no onboard pump.
AprilAire E080
- Choose it for
- The verified load and duct calculation fit E080, and its current total installed price is preferable.
- You have no installation requirement that uses E100’s additional capacity or fan capability.
- Main trade-off
- Its published airflow falls more sharply under duct resistance. Check the actual pressure rather than assuming collar size proves compatibility.
AprilAire E100
- Choose it for
- The design needs the stronger published fan curve or higher rated moisture capacity.
- The same cabinet dimensions and collar size are useful when upgrading an installation.
- Main trade-off
- Higher capacity does not remove drain, temperature or filter-access requirements. There is no onboard pump.
About this comparison
AprilAire E080 vs E100 for an existing duct system, basement or attic installation. Compare fan performance, service space and the limits of extra capacity.
These adjacent AprilAire installation models share cabinet dimensions and duct collar size. The practical question is whether the installation needs E100 capacity and fan performance.
Winner by situation
Start with what you need it to do
Duct calculation needs the stronger fan curve
E100 retains more airflow at the published matched pressure points.
- AprilAire E080
- Caution
- AprilAire E100
- Better fit
E080 meets the design and has a better installed offer
Extra E100 capability may be unused. Compare the actual installed total.
- AprilAire E080
- Good
- AprilAire E100
- Good
Inlet air below the manual conditions
Both share the documented lower operating limits.
- AprilAire E080
- Not suitable
- AprilAire E100
- Not suitable
The cabinet fits but the filter cannot slide out
Both require 15 inches on one side for filter withdrawal. Matching body dimensions do not remove that space.
- AprilAire E080
- Not suitable
- AprilAire E100
- Not suitable
What matters in practice
The differences that matter
The duct path can matter more than the twenty-pint difference
At zero external static pressure, the published airflow is 185 CFM for E080 and 280 for E100. At 0.2 inches water column it is 135 and 245. That means the longer or more restrictive duct route in a finished home can change the practical value of the upgrade. A qualified installer should calculate the actual resistance before choosing. The numbers support a fan-performance distinction, not a claim that E100 removes a particular amount more water through your ducts.
How we reached this conclusion
Manufacturer fan curve at matched pressure points crossed with an existing duct route. Maximum design static is 0.4 for E080 and 0.6 for E100. Airflow is not converted to extraction.
More capacity fits the same cabinet, not a sealed service gap
Both bodies measure 14 inches wide, 26 deep and 15 high, so E100 does not need a larger bare opening than E080. Both also need 15 inches on one side to withdraw the filter. A unit that can be slid into place but cannot be serviced will create a repeated access problem. Before using the matching dimensions to justify an upgrade, check the filter path, drain and collar connections with the surrounding storage or framing in place.
How we reached this conclusion
Equal cabinet dimensions crossed with the shared 15-inch filter withdrawal requirement. Installation fit is separated from transport fit.
A cold crawlspace does not become suitable by moving up a size
Both manuals specify 50 to 104 F inlet air and at least a 40 F dew point. If the intended space falls below those conditions, buying E100 for its larger rating does not remove that shared limit. Likewise, both require a suitable gravity drain or a separate pump when water must rise. An installer may need to change the placement or drainage before either capacity makes sense. This is particularly important when comparing a warm-room rating with a cool, lightly heated crawlspace.
How we reached this conclusion
Shared inlet and drainage conditions crossed with a cold installation and elevated disposal point. No prediction below the operating envelope.
Choice A
AprilAire, E080 standalone, E080Z package code, no separate controller or pump assumed
E080
The verified load and duct calculation fit E080, and its current total installed price is preferable.
- Best matched use
- The verified load and duct calculation fit E080, and its current total installed price is preferable.
Checked facts
- Rated moisture removal: 80 pints at 80 F and 60% RH, zero external static
- Airflow at 0.2 in. water column: 135 CFM
- Airflow at 0.4 in. water column: 85 CFM
- Body and duct collars: 14 W × 26 D × 15 H inches, ten-inch collars
Choice B
AprilAire, E100 standalone, E100Z package code, no casters or separate controller assumed
E100
The design needs the stronger published fan curve or higher rated moisture capacity.
- Best matched use
- The design needs the stronger published fan curve or higher rated moisture capacity.
Checked facts
- Rated moisture removal: 100 pints under the same conditions
- Airflow at 0.2 in. water column: 245 CFM
- Airflow at 0.4 in. water column: 210 CFM
- Body and duct collars: Same dimensions and ten-inch collars
Meaningful differences
What changes the fit
| What changes | AprilAire E080 | AprilAire E100 | Why it matters |
|---|---|---|---|
| Rated moisture removal | 80 pints at 80 F and 60% RH, zero external static | 100 pints under the same conditions | A 25% rating increase is not a 25% faster home-drying promise. |
| Airflow at 0.2 in. water column | 135 CFM | 245 CFM | E100 preserves more fan airflow through a resistive installation. |
| Airflow at 0.4 in. water column | 85 CFM | 210 CFM | These fan points are not extraction ratings at those pressures. |
| Body and duct collars | 14 W × 26 D × 15 H inches, ten-inch collars | Same dimensions and ten-inch collars | Body size does not force a larger opening, but service and installation still need checking. |
| Inlet conditions | 50 to 104 F, minimum 40 F dew point | Same limits | Extra capacity does not make E100 a cold-space workaround. |
What you give up
Every choice has a cost
If you choose AprilAire E080
- Budget the drain hose, optional pump and any external control separately from the standard unit.
If you choose AprilAire E100
- The existing duct system still needs inspection and sizing. Same dimensions do not certify a drop-in replacement.
What matters in practice
Before you choose
You want more moisture control without rebuilding the installation, but a larger daily rating cannot fix every duct or temperature problem.
What this comparison cannot tell you
- No invented E080 price advantage. Fan airflow is not drying speed. This upgrade comparison has no artificial two-way experiment switch.
What the facts say
What the comparison shows
Useful conclusions from the current dehumidifiers comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| AprilAire E080 |
|
| |
| AprilAire E100 |
|
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
AprilAire E080
The verified load and duct calculation fit E080, and its current total installed price is preferable.
You have no installation requirement that uses E100’s additional capacity or fan capability.
See price & reviews on AmazonAprilAire E100
The design needs the stronger published fan curve or higher rated moisture capacity.
The same cabinet dimensions and collar size are useful when upgrading an installation.
See price & reviews on AmazonLinks open in a new tab.