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Maintaining a comfortable and healthy home environment is essential, especially during winter when the air can dry.
One way to combat this issue is by using a furnace humidifier.
Not only does it help keep the air in your home at an ideal humidity level, but can also improve energy efficiency, reduce static electricity, and even alleviate allergies or respiratory issues.
A furnace humidifier is a device that connects directly to your home’s heating system, adding moisture to the air as it is circulated throughout your living space.
This type of humidifier can be more convenient and efficient than portable humidifiers and is designed to provide consistent humidity throughout your entire home.
When selecting the best furnace humidifier for your household, important factors to consider include the size of your home, the type of furnace you have, and the ease of installation and maintenance.
Additionally, you should consider energy efficiency, water usage, and noise levels when assessing potential options.
By carefully considering these factors and understanding the benefits of a furnace humidifier, you can confidently make an informed purchasing decision.
With this knowledge, continue reading to discover top picks and a comprehensive guide to help you choose the best furnace humidifier for your home.
Best Furnace Humidifiers
Discover the top furnace humidifiers that can transform your home’s atmosphere and comfort. Below you’ll find our carefully curated list of the best products to meet your needs.
Aprilaire 400 Whole-House Humidifier

The Aprilaire 400 is an ideal choice for maintaining optimal humidity levels in homes up to 5,000 square feet, making it perfect for improving indoor air quality and overall comfort.
Pros
- Designed and manufactured in the U.S.A by a trusted industry leader
- Large coverage area of up to 5,000 square feet
- Unique water-saving design that evaporates 100% of water flow
Cons
- Installation might be challenging for some homeowners
- Some users reported concerns with the float system
- Inconsistencies with the product images and actual unit
For those looking to improve the air quality in their home, the Aprilaire 400 Whole-House Humidifier offers full coverage and efficient water usage.
Its automatic system responds to outdoor temperature and indoor relative humidity, ensuring that you can maintain a consistent and healthy humidity level all year round.
One of the notable features of this humidifier is its water-saving design.
Evaporating 100% of the water flowing into the humidifier conserves water while delivering the same results as other units.
This also guarantees maximum benefits in reducing respiratory infections, allergy symptoms, and damage to susceptible household items.
However, the installation process might be challenging for some not DIY-savvy homeowners, so it is important to consider whether you’ll need professional assistance.
Additionally, a few users have raised concerns about the float system of the unit, which is designed to prevent overflow but might require occasional maintenance.
In conclusion, the Aprilaire 400 Whole-House Humidifier provides an efficient and environmentally-friendly solution for maintaining optimal humidity levels in large households.
Though it may require some installation know-how, its benefits make it well worth considering as a valuable addition to your home’s HVAC system.
Aprilaire 500M Whole Home Humidifier

The Aprilaire 500M is a solid choice for improving your home’s air quality and protecting your belongings from dry air damage.
Pros
- Designed and manufactured in the USA
- Covers up to 3,600 sq. ft.
- Preserves items susceptible to dry air damage
Cons
- Manual humidity control
- No auto shut off feature
- Installation can be time-consuming for some
The Aprilaire 500M Whole Home Humidifier offers a reliable and efficient solution for combating dry air in your home.
Manufactured in the USA by the company that invented evaporative humidifiers, Aprilaire continues to lead the industry in whole-home humidification systems.
This unit covers up to 3,600 sq. ft. in tightly built homes, making it suitable for various property sizes.
With its scientifically designed water distribution system, the Aprilaire 500M promotes healthy humidity levels between 40% and 60%.
This increases comfort and helps reduce the incidence of respiratory infections, allergies, and asthma symptoms by minimizing the formation of bacteria, viruses, fungi, and dust mites.
The unit also helps preserve items in your home that may suffer from dryness-related damage.
However, it’s important to note that this model features a manual humidity control, so you’ll have to monitor and adjust humidity levels as needed manually.
Furthermore, the 500M does not have an auto shut-off feature, meaning you’ll need to monitor its operation.
Lastly, some users may find the installation process time-consuming, especially if they’re not mechanically inclined.
In conclusion, the Aprilaire 500M Whole Home Humidifier is an effective way to help improve the air quality in your home, protect your belongings from dry air damage, and promote a healthier living environment.
While it may not have all the automated features of other models, its performance and coverage make it a great choice for many homeowners.
Aprilaire 600 Whole Home Humidifier

The Aprilaire 600 Whole Home Humidifier delivers optimal humidity, promoting a comfortable and healthy living environment in homes up to 5,000 sq. ft.
Pros
- Designed and manufactured in the U.S.A. by AprilAire
- Full coverage for tightly built homes up to 5,000 sq. ft.
- Convenient digital control with dual sensors
Cons
- Some users find installation time-consuming
- Limited flow control for water usage
- Warranty not recognized for DIY installation
Aprilaire introduced the first evaporative humidifier for forced air furnace systems in 1954, and they continue to be industry leaders in whole-home humidification.
The Aprilaire 600 Whole Home Humidifier uses a scientifically designed system to distribute water uniformly across the tray and through outlets, ensuring efficient evaporation and optimal humidity levels in your home.
The dual sensor technology sets this humidifier apart, which monitors and responds to outdoor temperature and indoor relative humidity.
This feature allows for convenient, automatic humidity control, maintaining an ideal humidity level between 40% to 60% in your home.
This helps reduce respiratory infections, allergy and asthma symptoms and makes you and your family more comfortable.
However, some users have found the installation process time-consuming, and there is limited flow control for water usage, which could lead to excess waste.
Additionally, if you choose to install the humidifier yourself, the warranty may not be recognized, something to consider if you’re not an experienced DIY-er.
Despite these concerns, this Aprilaire humidifier has earned the trust of many customers and remains a top choice for large homes.
The Aprilaire 600 Whole Home Humidifier provides effective and automatic humidity control for larger homes, ensuring a healthy and comfortable living environment.
Just be aware that the installation may be lengthy for some and could void the warranty if done improperly.
Aprilaire 700 Whole Home Humidifier

The Aprilaire 700 Whole Home Humidifier is an excellent choice for improving your home’s indoor air quality and comfort.
Pros
- Designed and manufactured in the U.S.A. by AprilAire
- Full coverage up to 5,300 square feet
- Automatic humidity control with dual sensors
Cons
- Professional installation recommended
- May require frequent maintenance
- Pricey compared to other options
The Aprilaire 700 is a powerful furnace humidifier designed to cover large homes of up to 5,300 square feet effectively.
A capacity of 18 gallons per day ensures optimal humidity levels are maintained, promoting better health and comfort for you and your family.
Its built-in fan efficiently pulls heated air directly from the furnace, providing consistent humidity throughout your home.
One of the standout features of the Aprilaire 700 is its automatic humidity control, which uses dual sensors to monitor and respond to both outdoor temperature and indoor relative humidity.
Set it and forget it – the humidifier will do the rest.
However, the installation process of the Aprilaire 700 may be complex for some homeowners and professional help might be necessary.
Additionally, like most humidifiers, it may require regular maintenance, such as changing the water panel to ensure optimal performance.
Lastly, the price of this humidifier is on the higher side compared to other options on the market.
In conclusion, if you’re looking for a reliable and effective furnace humidifier to improve your home’s indoor air quality and overall comfort, the Aprilaire 700 is a solid choice.
Its coverage, automatic humidity control, and proven performance more than justify the investment.
Just be prepared for the possibility of professional installation and regular maintenance.
Honeywell Home HE360A1075 Whole House Humidifier

The Honeywell Home HE360A1075 is a top choice to maintain optimal humidity levels in your home, keeping your living spaces comfortable during dry seasons.
Pros
- Powered flow-through design
- Suitable for homes up to 4,200 square feet
- Minimal maintenance required
Cons
- Installation kit sold separately
- Noise level may be noticeable
- Solenoid valve reported as potentially weak
The Honeywell Home HE360A1075 Whole House Humidifier features a powered flow-through design, making it an efficient and effective solution for managing your home’s moisture levels.
Its compatibility with various forced-air furnaces and variable speed systems makes it a versatile choice for homes up to 4,200 square feet.
One of the standout features of this humidifier is its low-maintenance design.
The flow-through system helps keep the unit clean, decreasing the frequency you’ll need to perform maintenance tasks.
However, it’s important to note that an installation kit must be purchased separately. Be prepared to invest in additional parts and have them handy during installation.
Regarding performance, the Honeywell Home HE360A1075 does a great job of maintaining proper humidity levels.
That said, some users have reported that the noise from the fan can be noticeable, especially nearby.
Additionally, a few reviews mention that the solenoid valve can be a weak point in the product, potentially requiring replacement.
In conclusion, the Honeywell Home HE360A1075 Whole House Humidifier is a powerful and efficient solution for maintaining optimal humidity levels.
With its low-maintenance design and wide coverage area, this humidifier can be a great investment in your comfort.
Just be prepared for some possible noise, and consider the need for an additional installation kit.
Things to Consider When Buying Furnace Humidifier
A furnace humidifier is essential for maintaining a comfortable humidity level in your home during the colder months.
When selecting the best product for your needs, there are a few key factors to consider.
In this buying guide, we’ll go over some of the main aspects you should keep in mind without mentioning specific brands or making up any information.
Types of Furnace Humidifiers
There are three primary types of furnace humidifiers: bypass, fan-powered, and steam-based. Each type has benefits and drawbacks, so consider your specific needs and preferences.
- Bypass humidifiers use your existing heating and cooling system’s air circulation to disperse moisture throughout your home.
- Fan-powered humidifiers have a built-in fan that helps move humidified air more efficiently, resulting in quicker and more even distribution.
- Steam-based humidifiers release steam into your air circulation system for the most accurate and responsive humidity control.
Installation
Evaluate your home’s HVAC system to see if it can accommodate the chosen furnace humidifier type or if modifications are necessary.
Some models may be harder to install than others, so decide if you feel comfortable doing the installation on your own or if you should hire a professional.
Capacity
Determine the area size you need to humidify to choose a furnace humidifier with the right capacity.
The unit should be able to cover your entire home comfortably. Common measurements include gallons per day (GPD) and square footage coverage.
Product capacity | Coverage range |
---|---|
Small | Up to 1,000 sq. ft |
Medium | 1,000 to 3,000 sq. ft |
Large | Above 3,000 sq. ft |
Energy Efficiency and Noise Level
Energy efficiency is essential for minimizing utility bills and reducing environmental impact.
Seek a product with an Energy Star rating or any other certification that signifies efficient performance.
Also, remember that some furnace humidifiers can be noisier than others, so you should look for units with a lower decibel rating if you’re sensitive to noise.
Maintenance and Features
To function properly, a furnace humidifier requires regular maintenance, like changing filters and cleaning components.
Some models are easier to maintain than others, so consider the required upkeep when selecting a product.
Additionally, look for special features like digital controls, programmable settings, and automatic shut-off functions, which can add convenience and safety.
By focusing on these factors, you’ll be able to make an informed decision and choose the best furnace humidifier for your home.
Frequently Asked Questions
What are the top whole-house humidifier models?
Some of the top whole-house humidifier models include Aprilaire 700, Honeywell HE360A, and GeneralAire 1099. These models have received positive reviews for their performance, efficiency, and ease of installation. However, it’s essential to research and compare these models to find the best fit for your home’s specific needs.
Which portable whole-house humidifiers are highly rated?
Aircare MA1201, Levoit LV600HH, and Honeywell HCM-6009 are some highly-rated portable whole-house humidifiers. Again, be sure to research and read reviews to find the best unit for your specific needs and requirements.
How is a whole-house humidifier installed?
You’ll generally need a professional to install a whole-house humidifier as it requires connecting to your home’s HVAC system, ductwork, and electrical circuitry. The process involves mounting the unit onto your furnace, attaching the necessary connectors and plumbing, and installing a humidity control unit.
What are the advantages and disadvantages of having a whole-house humidifier?
Having a whole-house humidifier comes with several benefits, such as improved air quality, reduced allergen levels, and prevention of dry skin. It also helps protect wood surfaces and furnishings from warping and other damage caused by dry air.
How efficient are different furnace humidifier types?
The efficiency of a furnace humidifier depends on the type, brand, and specific model in question. Bypass humidifiers tend to be energy efficient since they rely on your furnace’s blower to distribute moisture. Fan-powered models consume more energy due to the integrated fan, while steam humidifiers require the most energy to create and distribute steam.