Main trade-off
AprilAire E070 Pro
The lower matched-condition removal rating may be insufficient for a genuinely larger load.
Head-to-head
AprilAire E070 vs E100: E070 is easier to place, E100 needs a larger-capacity installation
The short answer
Choose E070 when its 70-pint rating meets the calculated load and the lower, lighter cabinet or eight-inch connections are important. Choose E100 when the design needs its 100-pint capacity and supports the larger cabinet and duct route. E100 adds 30 rated pints but needs ten-inch rather than eight-inch collars. Both share minimum inlet conditions, so the larger model is not a remedy for an installation that runs too cold.
Before you choose
The reasoning and the trade-offs
A large capacity jump can require a larger installation job
E100’s 100-pint rating is about 43% above E070’s 70 at the stated matched conditions. It also switches from eight-inch to ten-inch collars and adds 8 lb to a taller body. For an inaccessible crawlspace, those changes affect delivery, duct connections and later service. If E070 already meets the calculated load, the extra rating may be unused. If it does not, choose the larger capacity with the necessary installation work rather than choking it back into an unverified old duct path.
What this is based on
(100 - 70) / 70 is about 43%, a capacity-rating comparison only. Collar, height and weight changes crossed with replacement access.
Main trade-off
AprilAire E100
Its body is 2.5 inches taller and 8 lb heavier. Larger connections and service space can complicate replacement.
AprilAire E070 Pro
- Choose it for
- The verified load fits 70 pints and the access route favors a 12.5-inch-high, 56 lb unit.
- An appropriate eight-inch installation is worth preserving.
- Main trade-off
- The lower matched-condition removal rating may be insufficient for a genuinely larger load.
AprilAire E100
- Choose it for
- The calculated load requires the 100-pint class and the duct design meets its pressure requirements.
- You can provide ten-inch connections and sufficient filter and drain access.
- Main trade-off
- Its body is 2.5 inches taller and 8 lb heavier. Larger connections and service space can complicate replacement.
About this comparison
AprilAire E070 vs E100 for a constrained crawlspace or a larger ducted job. Compare access, existing ducts and why a bigger rating cannot fix cold inlet air.
A buyer sizing a permanent AprilAire installation may be tempted to jump from E070 to E100 for headroom. The useful question is whether that headroom matches the building and installation.
Winner by situation
Start with what you need it to do
Adequate 70-pint sizing and difficult delivery access
E070 is lower, narrower and 8 lb lighter.
- AprilAire E070 Pro
- Better fit
- AprilAire E100
- Caution
The design calls for 100-pint capacity and ten-inch ducts
E100 supplies the higher matched-condition rating.
- AprilAire E070 Pro
- Caution
- AprilAire E100
- Better fit
Conditions below the specified inlet limits
Both share the lower operating boundary.
- AprilAire E070 Pro
- Not suitable
- AprilAire E100
- Not suitable
The disposal point is above the installed unit
Both need a separate suitable pump. A higher daily removal rating does not change water routing.
- AprilAire E070 Pro
- Caution
- AprilAire E100
- Caution
What matters in practice
The differences that matter
A large capacity jump can require a larger installation job
E100’s 100-pint rating is about 43% above E070’s 70 at the stated matched conditions. It also switches from eight-inch to ten-inch collars and adds 8 lb to a taller body. For an inaccessible crawlspace, those changes affect delivery, duct connections and later service. If E070 already meets the calculated load, the extra rating may be unused. If it does not, choose the larger capacity with the necessary installation work rather than choking it back into an unverified old duct path.
How we reached this conclusion
(100 - 70) / 70 is about 43%, a capacity-rating comparison only. Collar, height and weight changes crossed with replacement access.
Winter conditions can erase the reason for buying the larger label
Both manuals set a 50 F minimum inlet temperature and 40 F minimum dew point for dehumidification. A cool crawlspace can therefore present a placement or operating-envelope problem that E100’s bigger warm-condition rating does not solve. Check the seasonal conditions where air enters the unit. The same caution applies to drainage. Neither has an onboard pump, so a higher disposal point still needs a separate solution. Capacity, temperature and water routing must all fit at once.
How we reached this conclusion
Shared inlet limits and no-pump drainage crossed with seasonal cold and an elevated disposal point. No claim about performance outside the published conditions.
The service path can be larger than the cabinet difference
E100 needs 15 inches on one side for filter withdrawal. A buyer may find room for the 14-inch-wide cabinet and still block the exact movement needed for cleaning. E070’s smaller body does not waive its own access instructions either. Before deciding that either unit fits, sketch where the filter comes out and where a person can reach the drain. This is especially important when the appliance sits behind storage that will be put back after installation.
How we reached this conclusion
Documented E100 filter withdrawal crossed with real use of storage and permanent placement. E070 clearance is not guessed or declared smaller.
Choice A
AprilAire, E070
E070 Pro
The verified load fits 70 pints and the access route favors a 12.5-inch-high, 56 lb unit.
- Best matched use
- The verified load fits 70 pints and the access route favors a 12.5-inch-high, 56 lb unit.
Checked facts
- Matched capacity: 70 pints at 80 F and 60% RH
- Body height and weight: 12.5 inches, 56 lb
- Duct connection: Eight-inch collars
- Cold inlet boundary: 50 F minimum and 40 F minimum dew point
Choice B
AprilAire, E100 standalone, E100Z package code, no casters or separate controller assumed
E100
The calculated load requires the 100-pint class and the duct design meets its pressure requirements.
- Best matched use
- The calculated load requires the 100-pint class and the duct design meets its pressure requirements.
Checked facts
- Matched capacity: 100 pints at 80 F and 60% RH
- Body height and weight: 15 inches, 64 lb
- Duct connection: Ten-inch collars
- Cold inlet boundary: Same limits
Meaningful differences
What changes the fit
| What changes | AprilAire E070 Pro | AprilAire E100 | Why it matters |
|---|---|---|---|
| Matched capacity | 70 pints at 80 F and 60% RH | 100 pints at 80 F and 60% RH | The 30-pint difference does not establish a household drying-time ratio. |
| Body height and weight | 12.5 inches, 56 lb | 15 inches, 64 lb | E070 leaves more transport and placement margin. |
| Duct connection | Eight-inch collars | Ten-inch collars | Reusing a small duct route requires checking, not just an adapter. |
| Cold inlet boundary | 50 F minimum and 40 F minimum dew point | Same limits | Bigger capacity does not remove the shared lower boundary. |
What you give up
Every choice has a cost
If you choose AprilAire E070 Pro
- Existing duct compatibility still needs confirmation. Eight-inch collars alone are not a whole-system design.
If you choose AprilAire E100
- The drain hose, any separate pump and optional controls must be included in the installed total.
Recommendation switch
The decision flips if...
70-pint sizing is sufficient and access is the harder problem
Choose AprilAire E070 Pro. E070 has the smaller, lighter body.
Verified moisture load needs the larger unit and its installation fits
Choose AprilAire E100. E100 provides the higher capacity.
What matters in practice
Before you choose
You want enough capacity for the difficult season without overcomplicating an already awkward crawlspace installation.
What this comparison cannot tell you
- No exact capacity threshold for a home is inferred from its size or occupants. Rating ratios are not speed or efficiency ratios.
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 E070 Pro |
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| |
| 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 E070 Pro
The verified load fits 70 pints and the access route favors a 12.5-inch-high, 56 lb unit.
An appropriate eight-inch installation is worth preserving.
See price & reviews on AmazonAprilAire E100
The calculated load requires the 100-pint class and the duct design meets its pressure requirements.
You can provide ten-inch connections and sufficient filter and drain access.
See price & reviews on AmazonLinks open in a new tab.