Home » Home & Garden » 7 Best Furnace Humidifier in 2021 [ Reviews & Buying Guide ]

7 Best Furnace Humidifier in 2021 [ Reviews & Buying Guide ]

Furnace Humidifier reviews

Furnace humidifier is a very common and useful home appliance nowadays. During winters, the humidity gets dropped and the environment of your home gets dry, this kind of environment can lead to suffering from cold or flu to you and your family members. So, it is very important to keep the indoor air sufficiently moisturized. To deal with this situation, you must pick the best furnace humidifier as it will maintain a healthy amount of humidity and moisture of indoor air.

You will find several furnace humidifiers in the market, but choosing the best one is not easy. That’s why we did research for about 15 hours on reading and comparing each feature and specification of the product, scanned through hundreds of consumer reviews, market availability, product service and took advice of experts and then listed the best furnace humidifier in the market.

In this article, we have included detailed review of each product along with a proper buying guide to help you choose the right one as per your needs so you can do hassle-free shopping.

7 Best Furnace Humidifier of 2021 (Our top picks)

1. Aprilair e 800 Whole Home Steam Humidifier

This Aprilaire Home Steam Humidifier provides the highest output and that’s why we listed it on the first position. It works for maintaining healthy indoor air quality. The machine comes with exclusive electrode technology for which impurities of the water promote the transfer of the electricity and the electric current heats up the water. This humidifier can cover up to 6200 square feet which is very suitable for a large family, moreover, it is easy to install as it comes with installation instructions.

Along with these, the Aprilaire Steam is safe to use and you can maintain it very easily as it doesn’t need cleaning, scrubbing, or water filtration,  just you have to replace the canister and your humidifier is ready to use for next season.

It has the dual-sensor that is able to monitor both outdoor and indoor humidity levels throughout the day and will maintain an optimum level of indoor air humidity level-35% to 40%. The most amazing feature is that you will get 6 output levels in this humidifier which will provide 11.5 to 34.6 gallons of moisture air every day. So, you can confidently invest your money on this Aprilaire 800.

  • Comes with efficient electrode technology
  • Able to cover a huge area (6200 square feet)
  • Featured with dual sensor
  • Maintains a perfect humidity level if indoor air
  • Minimizes the formation of bacteria and viruses
  • Price is a little bit high than others

2. AIR-BEAR Trion Duct Mounted Atomizing Humidifier

If you are looking for a furnace humidifier with a compact and simple design that can easily fit in a small area, you can pick this AIR-BEAR Trion Humidifier. You can easily set up this machine in a 3.5-inch-by-3.5-inch space that means it will match with any kind of place or home. Though it is tiny and smaller and can cover up to 2000 square feet in size. The humidifier sprays a fine mist of water into the warm air supply duct which is evaporated from the warm air of the furnace.

It ensures the proper amount of humidity in the indoor air by its built-in temperature switch and humidistat which can automatically control the machine. Moreover, if the warm air duct can not provide effective evaporation, the built-in temperature switch automatically turns off the operation.

The machine requires an annual cleaning and it is safe to replace the nozzle before using it for next season. Along with these, you will get 5 years of warranty with this humidifier which is a decent time. So if you are looking for an affordable option then this AIR-BEAR Trion Duct Mounted Atomizing Humidifier can be an ideal choice for you.

  • Built-in humidistat and temperature control switch
  • Compact and easy to store
  • Much suitable for a small family
  • Need to change nozzle every year
  • Not good for bigger space

3. Emerson HSP2000 Whole House Steam Humidifier

Emerson Steam comes with a bundle of features like automatic humidistat, blower safety switch, automatic flushing timer, saddle valve, fan control relay, water filter, and mounting frame. And the most surprising feature of it is that it has self-cleaning technology, water is heated inside the machine and that kills off all bacteria and viruses.

Although it is declared that the humidifier can cover 1400 square feet space but practically it can cover in an area of twice that size. It will provide the most accurate humidity control as it does not require hot air, when it detects the need for humidity the machine turns on automatically.

The humidifier evenly distributes the humidity throughout the space by its duct system. The output is about 13 gallons of moisturized air per day and the 120-volt 1500 watt powered machine can effectively maintain the correct humid level.  Moreover, it helps to keep the room environment warm which is a great benefit of using it. It comes with a two years warranty. Though the Humidifier is higher in price, it will definitely be worth it for you. 

  • Noiseless operation
  • Stainless steel body
  • Self-cleaning technology
  • The automatic flushing timer is an exclusive feature
  • Expensive
  • Requires filter replace every season

4. Honeywell Home Whole House Humidifier

To control the moisture of your house in the finest way, Honeywell Home Whole House Humidifier will give you the best service. This humidifier comes with multi-stage functions and variable speed that can cover up to 4200 square feet by its flow-through design. This unique flow-through design is very effective to clean its internal unit and that’s why you don’t need to maintain the machine frequently. It has the PerfectFLO distribution tray which boosts the effectiveness and water usage. Thus this humidifier is very beneficial to save your money on electricity bills for heating and cooling energy.

The Honeywell Home Whole House Humidifier is reliable to keep the accurate humidity level of indoor air. It will not only help to maintain the moisture of the air, as a dry environment can lead to dry skin issues, carpet shock, crack the wooden furniture, it will also eradicate the desert-like air and make the indoor air comfortable to stay. It can be your ultimate choice for your house.

  • Powered by the flow-through humidifier
  • Easy to install
  • Saves electricity bills efficiently
  • The automatic flushing timer is an exclusive feature
  • The installation kit is not provided in the package, have to buy separately

5. Skuttle 190-SH1 Drum Humidifier

This Skuttle Drum Humidifier is the most energy-efficient humidifier which uses less water and electricity and gives the great output of 17 gallons of moisturized air per day at just 120 degrees F. It comes with the thermoplastic body which is very durable and long-lasting also endures corrosion, rust, and wrapping. Along with these, the humidifier is designed with easy cleaning and replacement technology which makes it convenient to use and maintain. It also has an automatic flushing timer that makes it more effective.

The Skuttle Drum Humidifier comes with a complete package of bypass tubing, start collar, self-piercing saddle valve, summer-shutoff damper, mounting hardware, mounting template,  24-volt transformer, and a user manual with installation instructions. The interesting thing is that all the above items as well as the humidifier, you will get at a very reasonable price. This humidifier is the most budget-friendly item you can buy.

  • Affordable price
  • Featured with snap-lock fitting
  • Durable and long-lasting material
  • Easy to install
  • The bypass duct is short

6. Aprilaire 600 Whole-Home Humidifier

Aprilaire brand is the leading brand in the humidifier industry and it provides the best furnace humidifier with indoor air quality solutions. This Aprilaire 600 Whole-Home Humidifier is a digital humidifier with dual sensors which can monitor and work effectively for both indoor humidity and outdoor temperature. It maintains the optimum humidity level throughout the day. The humidifier comes with a convenient digital control system that shows the percentage of humidity level and light conveys the machine is working.

This humidifier is very helpful to reduce the impact of reciprocity infections and other allergy or asthma-related problems as it is very effective to minimize the formation of the virus, bacteria, dust particles, fungi, etc by maintaining an optimum humidity level from 35% to 40%. Along with these, it has the capacity of producing 17 gallons of moisture air every day and it can cover up to 4000 square feet space. This Humidifier will make your indoor air quality cozy and enjoyable in the dry season.

  • Useful for a large house
  • The great value of money
  • A convenient digital control system
  • Not easy for self-install

7. GeneralAire 1000A Humidifier

Finally, the last item of our list, GeneralAire 1000A Humidifier is a fan-powered humidifier. This humidifier is significant for a medium-sized house as it can cover up to 3000 square feet. It has a highly evaporated vapor pad that effectively pulls warm air through the unit. The output of the humidifier is 18 gallons per day which is very high according to its size. Moreover, if this humidifier runs full speed, it can cover 1000 square feet more. It is a very energy-efficient humidifier as it needs just 24V to run. It has a prominent humidistat which is large and easy to use as it comes with a clear backlit number.

This is an automatic humidifier that is easy to set and the temperature control system maintains the accurate humidity level that makes simply set and forget. The most benefit of buying this humidifier is that it comes with a 10 years warranty which is a huge time that you can not get in any other humidifier. This feature makes less maintenance cost. You can pick this GeneralAire 1000A, it will give you a great service.

  • Suitable for a medium-sized family
  • 10 years warranty
  • Easy to install
  • Makes noise while working

Things to consider while buying a furnace humidifier

If you are living in a dry climate region, a furnace humidifier is a very essential appliance for your home to live comfortably. Choosing the best furnace humidifier is tricky and confusing as there are many products you will find in the market. If you could know about the significant points it would be easier to find the right one. In this section we will discuss the features of humidifiers which you should check before buying and it will help you to choose. 

Types of humidifier

Evaporative Humidifier

These types  of humidifiers are the most common humidifiers which have been used for decades. The working concept is traditional- they use a fan to evaporate moisture into the air and spray water mists to add humidity. They typically use a wicking system which pulls the water up and makes the internal fan blow the air over the wet wick by making water evaporate. These evaporates turn into humidity.

Bypass Humidifier

Bypass humidifiers are installed with the water supply system of your home as they work with the evaporation process so water is essential. These humidifiers automatically detect the humidity level of indoor air and activate their humidification process. When the water goes through the wet pad, the evaporates turn into moisture particles. These particles maintain the humidity.

Steam Humidifier

Steam humidifiers are the most powerful humidifier. They use humidistat to control the humidity of the indoor air. The humidifiers work by heating up the water in a reservoir and then the water evaporates. Steam humidifiers precisely can control the humidity. The system of steam humidification is also known as isothermal humidification.

Coverage Area

Coverage area is an essential feature and it is described as the size of the house it is rated for and measured in square feet. For example- Aprilaire 800 Whole Home Steam Humidifier is rated for homes upto 6200 square feet. It means you have to choose a furnace humidifier according to your home size. If you have a small house, a humidifier with large coverage will simply lead to waste to water and electricity.

Maximum Output per day

Maximum output per day means the amount of water which the humidifier can evaporate into heated air while running at full speed. The amount of output is connected with the coverage area of the humidifier. For example Aprilaire 600 Whole-Home Humidifier can cover 4200 square feet area and the output is 17 gallons per day.


You can not buy home appliances daily, so a good warranty time is required and it provides a peace of mind. Basically most furnace humidifiers come with a five years warranty and the GeneralAire 1000A Humidifier comes with a 10 years warranty. Warranty period reduces the maintenance cost.


The price range of furnace humidifiers depend on the type of humidifier you want to buy. Bypass humidifiers are expensive but the steam humidifiers are most expensive. The average price range can be 150$-400$ and if you want an expensive one it can cost 800$-1000$. The price can vary because of exclusive features and advantages as well.


Furnace humidifier is the most effective home appliance for whole house solutions and it is great for delivering comfortable, moist and fresh air. There are an abundance of choices available in the humidifier industry so you can get confused. To make your purchase easy and simple, we tried our best to provide all the possible information along with the list of best furnace humidifiers. We picked humidifiers from various trustworthy brands. Our listed items are quite affordable, great featured, top rated and best reviewed items which will give you the best service and make your every penny count.


Leave a Comment

Your email address will not be published. Required fields are marked *

Pin It on Pinterest

Share This
Scroll to Top