Whole-House Dehumidifiers

Excess humidity can make your home feel uncomfortable even when the air conditioner is running. It can also contribute to musty odors, condensation, and conditions that encourage mold and mildew growth.

A whole-house dehumidifier helps control moisture throughout your home by removing excess humidity from the air. Unlike portable dehumidifiers designed for a single room, whole-home models can be integrated with your HVAC system or installed as a dedicated ducted system for more consistent humidity control.

Shop our selection of whole-house dehumidifiers from trusted HVAC manufacturers in a range of capacities for different home sizes and applications.

How Much Does a Whole-House Dehumidifier Cost?

The price of a whole-house dehumidifier varies depending on the brand, capacity, efficiency, controls, and other features. Higher-capacity models designed to remove more moisture per day typically cost more than smaller units.

Keep in mind that the equipment price and total installed cost are not the same. Professional installation may add labor, ductwork, drainage, electrical, and other material costs depending on the home and HVAC system.

When comparing dehumidifier prices, consider the size and capacity you actually need rather than choosing a unit based on price alone.

Choosing the Right Dehumidifier Capacity

Dehumidifier capacity indicates how much moisture the equipment can remove from the air over a specified period and is commonly expressed in pints per day.

The appropriate capacity depends on more than square footage. Your climate, current indoor humidity, basement or crawl space conditions, home construction, and HVAC system can all affect moisture levels.

Smaller-capacity whole-home dehumidifiers may be appropriate for more moderate humidity loads, while larger 90-, 100-, or 130-pint models can handle greater moisture removal requirements.

Choosing an appropriately sized unit helps provide effective humidity control without unnecessarily oversizing the equipment.

Aprilaire Whole-House Dehumidifiers

Aprilaire offers whole-house dehumidifiers in multiple capacities for residential humidity control. Depending on the model, Aprilaire dehumidifiers can be installed as part of an HVAC system or configured for dedicated dehumidification applications.

When comparing Aprilaire dehumidifiers, check the model's moisture-removal capacity, recommended application, airflow requirements, dimensions, and installation configuration to determine which unit is appropriate for your home.

Why Use a Whole-Home Dehumidifier?

Air conditioners remove some moisture as they cool your home, but they are designed primarily to control temperature. In humid conditions, your cooling system may reach the thermostat setting before enough moisture has been removed from the air.

A dedicated whole-house dehumidifier provides additional moisture control independent of the cooling cycle. Maintaining appropriate indoor humidity can improve comfort, help reduce condensation and musty odors, and create a less favorable environment for mold and mildew growth.

For many homes, indoor relative humidity between approximately 30% and 50% provides a comfortable target, although ideal levels can vary with climate and season.

Frequently Asked Questions

How much does a dehumidifier cost?

Dehumidifier prices vary considerably based on capacity, brand, features, and whether you are purchasing a portable or whole-house system. Whole-home HVAC dehumidifiers generally cost more than portable units because they are designed to manage humidity across a much larger area.

What size whole-house dehumidifier do I need?

The right size depends on your home's square footage, humidity level, climate, construction, and the amount of moisture that needs to be removed. Capacity is typically measured in pints of moisture removed per day. A qualified HVAC professional can help determine the appropriate capacity for your application.

Is a whole-house dehumidifier better than a portable dehumidifier?

It depends on the application. Portable dehumidifiers can work well for individual rooms or localized moisture problems. Whole-house dehumidifiers are designed to provide broader and more consistent humidity control throughout a home.

Can a whole-house dehumidifier connect to my HVAC system?

Many whole-house dehumidifiers are designed for ducted installation and can work with an existing HVAC system. Installation requirements vary by model and system configuration, so always review manufacturer specifications before purchasing.

What indoor humidity level should I maintain?

A common target is approximately 30% to 50% relative humidity. The ideal setting can vary depending on outdoor conditions, season, home construction, and personal comfort.