Basement Dehumidifiers Buying Guide

A damp or wet basement can be a breeding ground for mold and mildew, which can lead to health issues such as respiratory problems. A basement dehumidifier can help remove excess moisture from the air, creating a healthier and more comfortable living space. However, with so many options available on the market, it can be overwhelming to decide which one to buy. In this article, we'll take a closer look at basement dehumidifiers and provide a buying guide to help you make an informed decision.

What is a Basement Dehumidifier?

A basement dehumidifier is a device that reduces the level of humidity in a basement by drawing out excess moisture from the air. By doing so, it helps prevent the growth of mold and mildew, which can cause health issues and structural damage to a home. A dehumidifier works by passing the moist air over a chilled coil, which cools the air and causes the moisture to condense. The water then collects in a reservoir or is discharged through a hose directly into a sink or drain.

Basement dehumidifiers come in different sizes and capacities, ranging from small portable units suitable for a small basement or a room, to larger commercial-grade units designed for large spaces or whole-house applications. When choosing a dehumidifier, it's important to consider the size of the space you want to dehumidify, as well as the humidity levels, temperature range, and other factors such as noise level, energy efficiency, and additional features.

Why Do You Need a Basement Dehumidifier?

If you live in a humid or rainy climate, your basement is likely to be damp and musty. Humidity levels can rise due to several factors, including leaks, seepage, condensation, lack of ventilation, or inadequate insulation. This can lead to a host of problems, such as the growth of mold and mildew, wood rot, damage to electronics and appliances, and an unpleasant odor.

Excessive dampness can also cause health issues, particularly for those with respiratory problems such as asthma, allergies, or COPD. High humidity levels can aggravate these conditions and create an environment that is conducive to the growth of dust mites, mold spores, and bacteria, which can trigger allergic reactions or respiratory infections.

In addition to health concerns, dampness can cause structural damage to a home over time. Mold and mildew can rot wood, weaken walls and floors, and damage insulation. Moisture can also cause metal components such as pipes, HVAC units, and appliances to rust and corrode.

Factors to Consider When Buying a Basement Dehumidifier

The following factors should be considered when choosing a basement dehumidifier:

Size and Capacity

The size and capacity of the dehumidifier you choose will depend on the size and humidity level of your basement. A small portable unit may suffice for a small basement or a single room, while a larger commercial-grade unit may be necessary for a large basement or whole-house application.

The capacity of a dehumidifier is measured in pints per day. This refers to the amount of moisture that it can remove from the air in a 24-hour period. For example, a 30-pint dehumidifier can remove up to 30 pints of moisture from the air in a day. To determine the appropriate capacity for your space, you'll need to consider the size of your basement, the humidity level, and any other factors that contribute to excess moisture.

Noise Level

Dehumidifiers can make noise, particularly if they are running continuously. This can be a nuisance if you plan to use your basement as a living space, or if noise is an issue for you. Look for a dehumidifier that has a low decibel rating, or one that has a "quiet mode" option that reduces noise levels.

Energy Efficiency

Dehumidifiers can be energy-intensive, which can lead to higher electricity bills. However, some models are more energy-efficient than others, and may have an Energy Star rating to indicate their efficiency. Look for a dehumidifier with a high Energy Efficiency Ratio (EER) or Coefficient of Performance (COP), which measures how much energy the unit uses to extract moisture from the air.

Humidity Control

Some dehumidifiers come with a built-in humidistat or hygrometer, which allows you to set the desired humidity level and monitor the current level. This can be useful for maintaining the ideal humidity level in your basement, as well as reducing energy usage by shutting off the unit when the desired level is reached.

Automatic Shut-Off

An automatic shut-off feature can prevent the dehumidifier from overflowing and causing water damage. When the reservoir is full, the unit will shut off automatically, or will redirect the collected water into a drain or hose to prevent overflow.

Filter

Some dehumidifiers come with a washable or replaceable air filter, which can help remove allergens, dust, and other particulate matter from the air. A clean filter can also prolong the lifespan of the unit and improve its performance.

Portability

If you plan to move your dehumidifier around, or if you have a limited space to store it, look for a model that is lightweight and easy to move. Some models come with casters or handles for easy maneuverability, or can be easily disassembled for storage.

Types of Basement Dehumidifiers

There are three main types of dehumidifiers that are suitable for basement use, each with its own advantages and disadvantages:

Portable Dehumidifiers

Portable dehumidifiers are compact units that can be moved from room to room, or from basement to living space. They are generally less expensive than larger units and are suitable for small to medium-sized basements. Portable units typically have a reservoir or tank that needs to be emptied periodically, or can be attached to a hose for continuous drainage.

Advantages:

• Portable and lightweight
• Easy to set up
• Less expensive than larger models

Disadvantages:

• May not have the capacity to handle large basements
• Reservoir requires manual emptying
• Not as energy-efficient as larger models
• May be noisy when running

Whole-House Dehumidifiers

Whole-house dehumidifiers are designed to handle large spaces, such as a whole basement or house. They are typically installed as part of the HVAC (heating, ventilation, and air conditioning) system, and can be ducted to multiple rooms or areas of the house. Whole-house units are more expensive than portable units but can be more energy-efficient and have a higher capacity.

Advantages:

• Can handle large basements or whole-house applications
• More energy-efficient than portable units
• Can be ducted to multiple rooms or areas
• Can be integrated into HVAC system

Disadvantages:

• More expensive than portable units
• Requires professional installation
• May require additional ductwork
• May be noisy when running

Built-In Dehumidifiers

Built-in dehumidifiers are installed directly into the structure of the home, such as the walls or ceiling. They are typically used in new construction or major renovation projects and are not suitable for retrofitting an existing home. Built-in units can be more expensive than portable or whole-house units but can offer the greatest degree of efficiency and capacity.

Advantages:

• Can be integrated into the structure of the home
• Can handle large basements or whole-house applications
• More energy-efficient than portable or whole-house units
• Minimal noise when running

Disadvantages:

• More expensive than portable or whole-house units
• Requires professional installation
• Not suitable for retrofitting
• Limited availability and selection

Conclusion

A basement dehumidifier can be a valuable investment in the health and comfort of your home. It can help reduce the growth of mold and mildew, improve air quality, and prevent damage to your home's structure and materials. When shopping for a dehumidifier, consider the size and capacity, noise level, energy efficiency, humidity control, automatic shut-off, filter, and portability. Choose the type of dehumidifier that best suits your needs, whether it's a portable unit, a whole-house unit, or a built-in unit. With the right dehumidifier, you can create a dry, comfortable, and healthy living space for you and your family.