Best Furnace Humidifier Reviews, Definition, Functionality And Comparison

Should in case you are in need of a furnace humidifier or you want to learn about furnace humidifiers, you can go through this publication here. Relevant information on how to choose the best humidifier to install on your furnace system and reviews also featured.

Humidifiers are electrical home appliance that adds moisture or humidity to the air. They are useful for keeping the dry air encountered in winter months moist. This invariably improves general health conditions. Unlike stand-alone humidifier that have already been reviewed on this site, the furnace humidifier are mostly designed to be built into the heating, ventilation and air conditioning (HVAC) unit of a home. As such, they sometimes require to be installed on the ventilation ductwork close of a furnace system. Therefore, this type of humidifiers can only operate when the furnace is running.

Unlike stand-alone humidifiers, furnace humidifier can add moisture or humidity to the air of multiple rooms at the same time. It is not limited and proves as a great advantage when you have a large home. In winter or cold weather, most homes turn on the heating system to keep the atmosphere warm. As such, it might lead to dry air condition and its resultant effects. But a furnace humidifier can take care of this problem as is installed alongside the HVAC system.

Fortunately, recent models are being improved upon to regulate and adjust humidity levels through the addition of a superior humidistat. Also updated designs means the recent furnace humidifiers are much safer and cost less to maintain.

Furthermore, here are some of the benefits a furnace humidifier can offer you, they include:

  • It presents a cost effective, less stressful and effective way of humidifying a home. Because it is built into the HVAC unit of your home, you don’t need to buy a humidifier for every room and it saves you the stress and time of having to fill and refill tanks.
  • You are guaranteed of a year-round humidification of your home’s air that is effortless. You only require yearly check- up and maintenance and then you are good to do.

Derivable Benefits of Using A Humidifier

  • Humidifiers are best for easing sinusitis, blocked nasal passage, asthma or other allergies. These are respiratory conditions you can easily prevent, manage or control.
  • Dry, patched or crack skin is no longer a problem. The moisture in the air keeps your skin hydrated and younger looking every day. Others include bloody noses, dry mouth, itchy eyes and sore throat.
  • Humidifiers also protect your furniture. The wood and paint are prone to peal or crack when the air is too dry, but a humidifier curbs such degradation.
  • Humidifiers help curb static electrical shocks caused by the friction created between two surfaces. e.g. Between your cloths, paper and appliance.
  • They are good for babies and children. To prevent crankiness and discomfort for them.

From the foregoing, you can conclude that if your home is missing a whole house or furnace humidifier then you are missing a vital home appliance. From the health benefits to your home décor, the use cannot be over emphasized.

The Different Types of Furnace Humidifier Based on Functional Mechanism

1. The drum humidifier:

These are placed on the cold air return line while a drum of water is put in place. The motor of the humidifier draws out cold water from this drum and forces it into the system. The water then evaporates and turns into mist which is pushed through the HVAC system into the air of your home. The drum humidifier is less expensive and easy to install. But one disadvantage is that you have to frequently clean and refill the water drum to avoid the growth of mold.

2. The flow humidifier:

They are installed on the return or supply line and uses evaporation to operate. However they do not require water drum, instead water and air runs through a filter to force the mist out. Because of the absence of drum, they need to be connected to a water line.

3. Mist/Steam Humidifier:

They are more expensive but very effective and require limited maintenance. It produces steam instead of mist to humidify your air. It also comes in hot or cold water model to choose from. Like the flow humidifier, it needs to be connected to a water supply line because it doesn’t use a drum.

4. Ultrasonic humidifier:

This type uses a transducer to create mist. When water passes over the transducer, it vibrates causing charge-up of the water molecules and as such they break into many smaller droplets. These droplets flow through the HVAC system into your home’s air as mist. They are less commonly used because they are expensive and produce white dust particles that settle on furniture or surfaces of other home decoration.

5. Console humidifier:

The console humidifier also comes in models that can be used for single rooms. Others are installed as a window or wall unit air conditioner. It uses a tank of water attached to the unit to produce mist. The problem with this is that it requires high maintenance in cleaning and refilling the tank to avoid mold growth. Also they need to be set up in open spaces to inhibit the growth of mold.

Features of Furnace Humidifier As Whole House Humidifiers

Apart from the just discussed types of furnace humidifier, there is a need for you to know the basic and important features to look out if you want to make a choice you can proud of. Below are the primary features to consider when making a choice of furnace humidifier:

Maintenance Level:

Try to examine the maintenance level and requirement of the brand of furnace humidifier. Those that come with filters and drum require high maintenance. So if you are not ready for the stress, they are other non-water, non- filter humidifier you can choose from.

Ease of Use:

Simplicity is important when making a decision on which brand to buy. Majority of the brands in the market are looking to designing models that are easy to use and install.

Square Feet Covered:

This is also an important feature to look out for based on the square meter size of your home. A lesser coverage humidifier might not fully humidify your home.

So, with all that has been said so far, you can be positive that you are armed with needed information on what and why a furnace humidifier. This article will now move on to examine some brands of furnace humidifier; our aim is to make it easier and cause you to be confident on whatever purchase and brand you choose.

Review of Some Best Furnace Humidifier Brands


The Aprilaire 700 is built to handle large homes of up to 4,200 square feet in tightly constructed homes. It is trusted to deliver up to 50 percent more moisture than other competitively priced units. It comes with automatic digital control feature to help regulate moisture level. However, it can also provide vital service, temperature and relative humidity indicators in manual mode too. It is trusted to lessen, control or prevent symptoms of dry air conditions. Another good thing about this whole house humidifier is that it requires simple annual maintenance procedure.

Other features Include, outdoor sensor, water pad, 110V to 24V transformer, and built-in bypass damper. Also, its unit has a water feed rate of 3.0 GPH and will deliver an evaporative rate of .75 Gallons per hour. Its measurement is 16 wide x 11tall x 18 deep.


2. Aprilaire 500 Humidifier For Whole House Digital Control

Aprilaire 500 Humidifier For Whole House Digital Control

The Aprilaire 500 is a slightly lesser version of the Aprilaire 700. It is designed to cover up to 3000 square feet, unlike the 700 version that covers more. The unit has a water feed rate of 3.o gallon/hour that can deliver an evaporative rate of .5 gallons/hour.

Its features include: automatic digital control, water panel, outdoor temperature sensor, water pad, 110V to 24V transformer and in-built bypass damper. The measurement of the Unit is 15.62″ wide x 13″tall and 10.25″ deep; Plenum opening size is 9.5″.

Invariably, the only difference from the Aprilaire 700 is the square feet of room size it can humidify. It is therefore an excellent choice if you don’t have very large homes.

3. Honeywell Whole House Powered Humidifier

Honeywell HE360A Whole House Powered Humidifier
The Honeywell Powered flow-through humidifier is an easy to use and install band that can cover homes of up to 4,200 square feet. It is the best choice for variable speed and multi-stage systems. It gives you the ability to choose either warm air supply or return air duct of any forced-air furnace.

One thing to love about this humidifier is that the PerfectFlo Flow-through design helps to keep the unit clean and free from mold growth; thereby decreases the frequency of maintenance. And also eradicates the stress of filling and re-filling. What more, it does not consume much water.

While installing, it is compact enough to allow mounting of more applications without disrupting. It mounts on supply plenum. It is a flow humidifier. Its dimensions are 21.2 wide x 17.5 tall x 16.2 inches wide.


4. Honeywell TrueEASE Fan Powered Humidifier

Honeywell HE300A1005 TrueEASE Fan Powered Humidifier
The Honeywell HE300A1005 is an energy efficient furnace humidifier with option to choose between the hot or cold water units. It humidifies by blowing air through a wet pad. It is also easy to install. Because it is a flow through humidifier, as such, it is designed to use extra water to flush minerals from the humidifier pad. This process helps keep the pad clean and mold free.

It operates quite noiselessly so you are hardly disturbed while enjoying the moisture it disperses in the air. Its advanced models save 30-50% of water, comes with easy to replace pads and saves energy by automatically closing the bypass when not in use.

Some of its basic features include: HumidiPRO Digital Humidity Control to help regulate the amount of moisture in the air; its dimensions are (10.3 x 15.5 x 16.8 inches; 16.2 pounds). It can cover approximately 2700 square meter home space.

The inlet valve cycles on and off at about 50% duty cycle which is purported to cut water usage by 50% in comparison with other competing models.


5. GeneralAire 1000A Humidifier

GeneralAire 1000A Humidifier, 120V

The GeneralAire boast of having the best humidistat in the market. It has an outdoor sensor for temperature control and calculates the amount of dew as the weathers fluctuates. This is an important feature especially when you are in an environment where temperature conditions changes easily.
Made with durable ultra-violet stable grade automotive grade plastics, it is designed to power homes of up to 30000 square feet.

And though it comes with Gfx3 automatic digital humidistat, it allows you to also operate it manually. It had an integral humidity control bypass damper. It is an example of a flow humidifier and comes with either running hot or cold water. However, hot water is better preferred as this will aid better evaporation and prevent the hot air from cooling down air which forces the furnace to fire longer.


6. Honeywell furnace humidifier

The Honeywell furnace humidifier is very easy to install. It comes with installation kits (bypass duct, wire, zip ties, tube for the drain off, etc.) with an easy to find instructional videos online made by Honeywell. It is cost effective, requires low maintenance and is simple to operate. The Honeywell furnace covers up to 3000 square feet and suitable for large homes.

It can be mounted on supply or return plenum and requires access to a return duct and drain for its functionality. The bypass carries air from the supply, through the humidifier, to the return. It comes with a filter, which purifies the water before it is dispersed into the air as mist.

It has a humidistat feature that allows you set the humidity level, and also air pressure switch that senses if the blower is running in your furnace. However, it does not however, come with an outdoor sensor. So, to prevent ice buildup on window panes, you would have to set the humidity lower when it’s colder outside.

7. Honeywell Higher Capacity Whole House Bypass Humidifier

Honeywell HE260A Higher Capacity Whole House Bypass Humidifier
The Honeywell HE260A is a Bypass flow-through humidifier that is very easy to install and comes with DVD for the instructions. The installation kit is however sold separately from the product.
It is easy to mount on either warm air supply or return duct of any forced air. It fully humidifies homes of up to 4,000 square feet.

It uses replaceable filters, the filters aids in sifting out particles from the water before it is dispersed into the air you’re your homes. It has a humidistat to give you control over humidity level setting.


More details

What is furnace humidifier installation cost?

Humidifier for furnace required installation and this installation can be done by oneself only if you know a bit of DIY tech-knowledge. Otherwise, you need to hire a professional to install it for you and this will require installation cost.

What are furnace humidifier pros and cons?

Furnace humidifier have the capacity to humidify a whole house and they usually require less maintenance compare to most ultrasonic or console units. Since these humidifiers are installed on a furnace they uses water directly from your home plumbing system which eliminate the need of refilling water yourself.

However, the major drawback is that they require installation and cost may be involved if done by an expert. And also humidifiers that attached to furnace do use filters and this needs to replacement​ within​ 3 to 6 months depending on usage.

how much does a furnace humidifier cost?

Humidifier for furnace cost varies and this depends most especially on the features you want to be in your hvac humidifier system. However​, you should able to see prices ranging from a $150 upward to get a powerful home coverage capacity furnace humidifier for a whole.

How to clean home furnace humidifier?

They only require seasonal maintenance and to achieve this, remove all necessary parts and the use a solution of vinegar to clean property. Filters should also be cleaned or change often if needs be.

Final thoughts

Dry air affects you and everyone around you. It can lead to catarrh, sinusitis, dry skin, allergic reaction, static shock, de-hydration and the like for you and entire household. But these problem can be checkmate with the use of a humidifier. However, having to buy one humidifier for all rooms may not be cost effective or budget supportive. This is the furnace humidifier comes in, giving you the power to humidify the whole house.

So far, this article has been able to take you through the world of furnace humidifier. And a review of some of furnace humidifier brands was discussed. What is left is for you to click and make a purchase fast! Health is wealth.

Leave A Comment