50-Pint vs 70-Pint: Energy Use Compared

What the pint figures mean on a listing

When you see a dehumidifier listed as 50-pint or 70-pint, that number is the seller's stated capacity: how much water the unit can remove in 24 hours under a specific test condition. The U.S. Department of Energy (DOE) defines the test method and the capacity rating, and the ENERGY STAR program explains that capacity is reported in pints per day. A 70-pint unit is a higher capacity group than a 50-pint unit, but the pint figure alone does not tell you how much energy the unit uses.

The site groups dehumidifiers by capacity ranges, such as 50 to 99 pints, and reviews each model on its stated details. When you compare a 50-pint and a 70-pint unit, you are comparing two different capacity groups, not two versions of the same machine. The energy use of each unit depends on its compressor, fan, and coil design, which are not shown in the pint number. For a deeper look at how the site reviews models, see the best dehumidifier reviews.

• Capacity is the amount of water removed per day at test conditions, reported in pints per day.
• The DOE test procedure was updated in 2019, and new ratings may be lower than old ones for the same unit.
• A higher capacity group does not automatically mean higher energy use; efficiency varies by model.

How energy efficiency is measured

Energy efficiency for dehumidifiers is measured by the Integrated Energy Factor (IEF), which is the liters of water removed per kilowatt-hour (kWh) of energy consumed. The ENERGY STAR program states that a higher IEF means a more efficient dehumidifier. This metric replaced the older Energy Factor (EF) in 2019, and it includes the energy the unit uses when it cycles off.

On a listing, you may see the IEF value or an Energy Star mark. The ENERGY STAR program says that a certified dehumidifier uses more efficient coils, compressors, and fans to remove the same amount of moisture as a similarly sized conventional unit, using 20% less energy. However, the site never states the Energy Star mark for a listing that does not name it, and it never gives energy use or savings figures for a specific model. To understand the mark better, read energy factor vs energy star rating.

To compare the energy use of a 50-pint and a 70-pint unit, look for the IEF value on the maker's page or the listing. A higher IEF means the unit removes more water per unit of energy, which is a better efficiency indicator than the pint number alone.

• IEF is the liters of water removed per kilowatt-hour of energy consumed.
• A higher IEF indicates a more efficient dehumidifier.
• The Energy Star mark indicates that a model meets ENERGY STAR efficiency criteria, but the site does not state it for every listing.

Reading the listing for energy details

When you read a dehumidifier listing, the energy information may be in the title, the bullet list, or the images. The title might include 'Energy Star' or a capacity figure, but it rarely shows the IEF. The bullet list often includes the capacity, the area the seller claims, and features like a pump or drain hose. The IEF or Energy Star status may be in the detailed specifications or on the maker's product page.

If a listing does not state the IEF or an Energy Star mark, that is a missing detail. You can check the maker's website for the IEF value or the ENERGY STAR product finder. The site's reviews are based on stated details, so a review will note when a detail is not stated by the seller. For a guide to models that carry the mark, see the best Energy Star dehumidifiers.

For a 50-pint and a 70-pint unit, compare the IEF values if they are available. If one has a higher IEF, it is more efficient in terms of water removed per energy used. However, the actual energy consumption in your home depends on the conditions, such as temperature and humidity, which the site cannot predict.

• Look for the IEF value or Energy Star mark in the listing or on the maker's page.
• If a detail is missing, check the maker's website or the ENERGY STAR product finder.
• The site's reviews note when a detail is not stated by the seller.

Comparing 50-pint and 70-pint units

When you compare a 50-pint and a 70-pint dehumidifier, you are looking at two capacity groups. The 70-pint unit is designed to remove more moisture per day, which may be a better fit for a larger or wetter space. However, the energy use is not determined by the capacity alone. A well-designed 70-pint unit could be more efficient than a poorly designed 50-pint unit, or vice versa.

The ENERGY STAR program provides a chart to estimate the minimum capacity for a space, based on the condition without dehumidification and the room size. For example, a 'wet' condition in a large room (over 2,000 sq ft) may recommend a capacity of 50+ pints per day, while a 'slightly to moderately damp' condition in a small room (under 2,000 sq ft) may recommend 20-30 pints. This helps you choose the right capacity group, but it does not tell you which unit uses less energy. For a practical guide to sizing, see how many pints do I need per square foot.

To make a fair energy comparison, read the IEF values for both units. If the 70-pint unit has a higher IEF, it may be more efficient per pint removed, but the total energy use could still be higher because it runs longer or removes more water. The site cannot give a figure for that; you need to read the maker's specifications.

• Capacity groups help you choose the right size for your space, based on the seller's labels.
• Energy efficiency is measured by IEF, not by capacity.
• Compare IEF values to see which unit is more efficient per unit of energy.

What the site cannot tell you

The site reviews dehumidifiers on their stated details, but it does not have measured data on energy use, noise, or performance. It cannot tell you how many kilowatt-hours a specific model will use in your home, nor can it promise that one unit will lower your energy bill. The ENERGY STAR program says that a certified unit uses 20% less energy than a conventional unit of the same size, but the site does not state that for any listing.

When you read a review, you will see the stated details, such as capacity, pump, and drain hose, but not energy consumption figures. To get that information, you need to check the maker's page or the ENERGY STAR product finder. The site's role is to help you understand what the listing terms mean and what to look for. For a broader view of what reviews cover, see the best dehumidifier reviews.

For a 50-pint vs 70-pint comparison, the site can explain the capacity groups and how to read the IEF, but it cannot say which unit uses less energy in your specific situation. That depends on the conditions in your space, which vary.

What to pick for your situation

When you are choosing between a 50-pint and a 70-pint dehumidifier, start by considering the space you need to dehumidify. The ENERGY STAR capacity chart can help you estimate the minimum capacity based on the room size and the dampness condition. For a large, wet basement, a 70-pint unit may be a better fit, while a 50-pint unit might suffice for a smaller or less damp space.

Then, compare the energy efficiency by reading the IEF values on the maker's pages. If both units have similar IEF values, the 70-pint unit may use more energy overall because it removes more water, but it may also finish the job faster. The site cannot give a figure for that, so you need to weigh the capacity and efficiency based on your needs.

Use the site's reviews to see how each model is described in terms of stated details, and check the buying guides for specific recommendations. The guides list models by capacity group and features, such as a pump or drain hose, which can help you narrow down your choices. For a basement with a pump, see the best basement dehumidifier with pump.

What to pick for your situation

Questions

Does a 70-pint dehumidifier always use more energy than a 50-pint?

No. The energy use depends on the unit's design, not just the capacity. A 70-pint unit may be more efficient per pint removed, but it may also run longer or remove more water, so the total energy use can vary. Check the IEF value on the maker's page.

What is the Integrated Energy Factor (IEF)?

IEF is the liters of water removed per kilowatt-hour of energy consumed. A higher IEF means a more efficient dehumidifier. It replaced the older Energy Factor in 2019 and includes the energy used when the unit cycles off.

How can I compare the energy use of two dehumidifiers?

Look for the IEF value on the maker's page or the listing. A higher IEF indicates better efficiency. Also check if the unit is Energy Star certified, which means it meets ENERGY STAR efficiency criteria, but the site does not state that for every listing.

Why do some listings show a lower capacity than older models?

The DOE changed the test procedure in 2019, testing at a cooler temperature (65°F) to better reflect basement conditions. This can result in lower capacity ratings for the same unit. The ENERGY STAR page explains this change.

Can the site tell me how much energy a specific model uses?

No. The site reviews on stated details and does not have measured energy data. You need to read the maker's specifications or the ENERGY STAR product finder for IEF values and energy use.