Main trade-off
AlorAir Sentinel HDi90 Ductable
The 70.5 lb body is higher and wider. Pump servicing and exact HVAC compatibility remain important checks.
Head-to-head
Choose HDi90 Ductable when an internal pump solves a verified uphill drain route and the dedicated-space setup fits. Choose E100 when its documented duct integration and higher matched-condition rating meet the design. E100 is rated at 100 pints against HDi90’s 90 under matched warm conditions. AlorAir’s 198-pint saturation figure is not comparable to AprilAire’s 100. E100 still needs a separate pump if water cannot drain downhill.
Before you choose
HDi90 reaches its 198-pint claim at 90 F and 90% RH. Its 80 F and 60% RH figure is 90 pints, compared with E100’s 100 under those conditions. The relevant nominal difference is therefore ten pints in E100’s favor. This correction matters for someone trying to size a basement from a retailer title. Neither number predicts the amount collected in a cooler home, and it does not remove the need to calculate the actual moisture load.
What this is based on
Both ratings normalized to 80 F and 60% RH. 100 minus 90 equals ten pints. No comparison of unmatched saturation figures.
Main trade-off
The 70.5 lb body is higher and wider. Pump servicing and exact HVAC compatibility remain important checks.
Main trade-off
The standard E100 package lacks an onboard pump and drain hose. Added drainage parts may be needed.


AlorAir HDi90 Ductable vs AprilAire E100 for a pump-dependent crawlspace or ducted home. Compare real rating conditions, access and remaining maintenance.
These high-capacity crawlspace and basement alternatives overlap on the same moisture-control job. Their different rating conventions and included drainage hardware can easily distort the decision.
Winner by situation
HDi90 includes the pump.
E100 supplies both, with drainage handled separately.
E100 has the lower, narrower body, subject to full access checks.
HDi90 has a pump reservoir that must be drained before moving. It also weighs 70.5 lb against E100’s 64 lb.
What matters in practice
HDi90 reaches its 198-pint claim at 90 F and 90% RH. Its 80 F and 60% RH figure is 90 pints, compared with E100’s 100 under those conditions. The relevant nominal difference is therefore ten pints in E100’s favor. This correction matters for someone trying to size a basement from a retailer title. Neither number predicts the amount collected in a cooler home, and it does not remove the need to calculate the actual moisture load.
Both ratings normalized to 80 F and 60% RH. 100 minus 90 equals ten pints. No comparison of unmatched saturation figures.
For a raised drain, HDi90 includes a component E100 does not. That can simplify the materials list, but the manual still calls for annual pump maintenance and reservoir draining before moving or storage. E100 with a working gravity route avoids that pump routine. E100 with an external pump merely moves it to another component. A household choosing a hidden installation should make sure the person doing maintenance can reach the pump, filter and hose connections.
Included hardware crossed with drain height and service access. No pump reliability or maintenance-time advantage inferred.
E100 is 6.5 lb lighter, 2.7 inches lower and 1.2 inches narrower. HDi90 is 2.8 inches shorter. In a low, narrow access route, E100 may be easier to accommodate, while a short final bay may favor AlorAir. Both need more room than the bare body. E100 needs 15 inches for side filter withdrawal, and HDi90 specifies inlet and discharge clearances. Measure the route and the service position before deciding which shape fits.
Exact body deltas crossed with transport route and installed service access. No claim about safe personal lifting weight.

AlorAir, Sentinel HDi90 Duct, built-in pump, white cabinet with black end panels. Amazon color field says Black.
The included pump solves the main installation problem and you can maintain it.

AprilAire, E100 standalone, E100Z package code, no casters or separate controller assumed
The design needs the 100-pint class and documented HVAC integration.
Meaningful differences
| What changes | AlorAir Sentinel HDi90 Ductable | AprilAire E100 | Why it matters |
|---|---|---|---|
| Matched rating | 90 pints at 80 F and 60% RH | 100 pints at 80 F and 60% RH | E100 has the higher stated rating on this common basis. |
| Included pumping | Internal pump | No internal pump | The higher capacity does not remove the uphill drainage task. |
| Body height and weight | 17.7 inches, 70.5 lb | 15 inches, 64 lb | E100 is 2.7 inches lower and 6.5 lb lighter. |
| HVAC evidence | Ductable, exact fan-interlock route not established | Documented duct and fan-interlock instructions | Choose a verified complete system, not a connection label. |
What you give up
Recommendation switch
Choose AlorAir Sentinel HDi90 Ductable. HDi90 provides the internal pump.
Choose AprilAire E100. E100 has the higher rating and integration instructions.
What matters in practice
You want enough drying capacity and less installation work, but the larger headline number can belong to the lower matched rating.
What the facts say
Useful conclusions from the current dehumidifiers comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| AlorAir Sentinel HDi90 Ductable |
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| AprilAire E100 |
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

The included pump solves the main installation problem and you can maintain it.
Its shorter body fits the complete airflow and service plan better.
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The design needs the 100-pint class and documented HVAC integration.
The lower, narrower, lighter body helps access, with gravity drainage or a separate pump planned.
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