10 Best Furnace Humidifiers 2021 – Reviews with Buying Guide

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These are humidifiers for the entire home that are installed directly in your home via the HVAC heating system. You can remove all unnecessary moisture from the home by protecting your skin, furniture, respiratory diseases.

It can also eliminate all harmful bacterial infections and microorganisms. Before purchasing the best oven humidifiers, we must consider the type, which includes bypass or humidifier with fan. In addition, price also plays a very important role.

It must have a good evaporation capacity per day. In addition, it should cover a good area. Here we are with the list of the 13 best oven humidifiers in Canada.

Our Top Pick

Last update on 2022-11-24 / Affiliate links / Images from Amazon Product Advertising API

Top 10 Best Furnace Humidifiers To Buy In 2021

Last update on 2022-11-24 / Affiliate links / Images from Amazon Product Advertising API

10 Best Furnace Humidifiers Review

Bestseller No. 1
AprilAire 500M Whole Home Humidifier, Manual Compact Furnace Humidifier, Large Capacity Whole House Humidifier for Homes up to 3,600 Sq. Ft., White
  • BUY WITH CONFIDENCE This humidifier was designed and manufactured in the U.S.A. by AprilAire – the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions
  • FULL COVERAGE up to 3,600 square feet in tightly built homes with a capacity of 12 gallons per day
  • MANUAL HUMIDIFIER with a single sensor built into the standard control monitors indoor relative humidity for use in manually setting the percent humidity in your home
  • FEEL MORE COMFORTABLE while also preserving items in your home susceptible to damage from changing humidity or dry conditions
  • HUMIDITY FOR HEALTH AprilAire Humidifiers can help you maintain optimal humidity in your home of 40% – 60% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, you’ll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions
SaleBestseller No. 2
Honeywell Home HE240A Whole House Humidifier
  • For homes up to 3,000 square feet
  • Easy mounting on either warm air supply or return air duct of any forced-air furnace
  • Flow through design helps keep unit clean of microorganisms and decreases the frequency of maintenance
  • PerfectFLO water distribution optimizes efficiency and water usage
  • Protects wood floors and furnishings from drying and cracking
Bestseller No. 3
AprilAire 500 Whole Home Humidifier, Automatic Compact Furnace Humidifier, Large Capacity Whole House Humidifier for Homes up to 3,600 Sq. Ft., White
  • BUY WITH CONFIDENCE This humidifier was designed and manufactured in the U.S.A. by AprilAire – the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions
  • FULL COVERAGE up to 3,600 square feet in tightly built homes with a capacity of 12 gallons per day
  • AUTOMATIC HUMIDIFIER with dual sensors to monitor and respond to both outdoor temperature and indoor relative humidity to deliver optimum humidity 24/7 throughout the home – simply set it and forget it
  • CONVENIENT DIGITAL CONTROL shows percent humidity, lights indicate humidifier is running, when to change the Water Panel, when service is needed, and Blower Activation switch sets humidifier to run continually, or only when the furnace runs
  • HUMIDITY FOR HEALTH AprilAire Humidifiers can help you maintain optimal humidity in your home of 40% – 60% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, you’ll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions
Bestseller No. 4
AprilAire 600M Whole Home Humidifier, Manual High Output Furnace Humidifier, Large Capacity Whole House Humidifier for Homes up to 5,000 Sq. Ft., White
  • BUY WITH CONFIDENCE This humidifier was designed and manufactured in the U.S.A. by AprilAire – the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions
  • FULL COVERAGE up to 5,000 square feet in tightly built homes with a capacity of 17 gallons per day
  • MANUAL HUMIDIFIER with a single sensor built into the standard control monitors indoor relative humidity for use in manually setting the percent humidity in your home
  • FEEL MORE COMFORTABLE while also preserving items in your home susceptible to damage from changing humidity or dry conditions
  • HUMIDITY FOR HEALTH AprilAire Humidifiers can help you maintain optimal humidity in your home of 40% – 60% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, you’ll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions
Bestseller No. 5
DIGI MISTER Evaporative Duct Mount Whole House Furnace Humidifier, Atomizing Cool Mist Variable Capacities for Homes and Offices from 1000 to 3500 sq. ft.
  • FLEXIBLE CAPABILITY. By changing the number of fine mist nozzles (1 to 5) and adjusting the warm air temperature, DIGI MISTER humidifier can be used for homes and offices of various sizes from 1000 to 3500 sq. ft., as well as work with different types of furnaces.
  • EASY INSTALLATION. With a patented compact design this humidifier only needs a small cut-out for installation and can fit into a small area and tight space easily. No duct work and drainage is required, and the connection is simple and easy.
  • CONVENIENT MAINTENANCE. Through an observation window, users can visually check the water mist status to make sure for a complete evaporation. With a “swing-out” design the spray nozzles can be tested, cleaned, or replaced effortlessly.
  • FULL DIGITAL CONTROL. Users can precisely set and adjust room humidity, duct air temperature, as well as many other secondary parameters, such as humidity value calibration, temperature unit between °F and °C, etc.
  • WATER AND ELECTRICITY SAVING. Water is sprayed into the duct under normal pipe pressure to form an atomized mist which fully evaporates into the air, with no waste of water. No pressure pump, no heated unit, no powered fans are needed for a very quiet operation.
Bestseller No. 6
DIGI MISTER Evaporative Duct Mount Whole House Furnace Humidifier with 8 UV-C LEDs, Atomizing Cool Mist Variable Capacities for Homes and Offices from 1000 to 3500 sq. ft.
  • FLEXIBLE CAPABILITY. By changing the number of fine mist nozzles (1 to 5) and adjusting the warm air temperature, DIGI MISTER humidifier can be used for homes and offices of various sizes from 1000 to 3500 sq. ft., as well as work with different types of furnaces.
  • EASY INSTALLATION. With a patented compact design this humidifier only needs a small cut-out for installation and can fit into a small area and tight space easily. No duct work and drainage is required, and the connection is simple and easy.
  • CONVENIENT MAINTENANCE. Through an observation window, users can visually check the water mist status to make sure for a complete evaporation. With a “swing-out” design the spray nozzles can be tested, cleaned, or replaced effortlessly.
  • FULL DIGITAL CONTROL. Users can precisely set and adjust room humidity, duct air temperature, as well as many other secondary parameters, such as humidity value calibration, temperature unit between °F and °C, etc.
  • WATER AND ELECTRICITY SAVING. Water is sprayed into the duct under normal pipe pressure to form an atomized mist which fully evaporates into the air, with no waste of water. No pressure pump, no heated unit, no powered fans are needed for a very quiet operation.
Bestseller No. 7
AprilAire 700M Whole Home Humidifier, Manual Fan Powered Furnace Humidifier, Large Capacity Whole House Humidifier for Homes up to 5,300 Sq. Ft., White
  • BUY WITH CONFIDENCE This humidifier was designed and manufactured in the U.S.A. by AprilAire – the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions
  • FULL COVERAGE up to 5,300 square feet in tightly built homes with a capacity of 18 gallons per day
  • MANUAL HUMIDIFIER with a single sensor built into the standard control monitors indoor relative humidity for use in manually setting the percent humidity in your home
  • BUILT-IN FAN pulls heated air directly from the furnace through the humidifier
  • HUMIDITY FOR HEALTH AprilAire Humidifiers can help you maintain optimal humidity in your home of 40% – 60% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, you’ll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions
Bestseller No. 8
AprilAire 700 Whole Home Humidifier, Automatic Fan Powered Furnace Humidifier, Large Capacity Whole House Humidifier for Homes up to 5,300 Sq. Ft., White
  • BUY WITH CONFIDENCE This humidifier was designed and manufactured in the U.S.A. by AprilAire – the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions
  • FULL COVERAGE up to 5,300 square feet in tightly built homes with a capacity of 18 gallons per day
  • AUTOMATIC HUMIDIFIER with dual sensors to monitor and respond to both outdoor temperature and indoor relative humidity to deliver optimum humidity 24/7 throughout the home – simply set it and forget it
  • BUILT-IN FAN pulls heated air directly from the furnace through the humidifier
  • HUMIDITY FOR HEALTH AprilAire Humidifiers can help you maintain optimal humidity in your home of 40% – 60% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, you’ll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions
SaleBestseller No. 9
Honeywell Home HE280A Whole House Humidifier, White
  • Water-saving technology uses 30% less water than standard models
  • Easy mounting on either warm air supply or return air duct of any forced-air furnace
  • Flow through design helps keep unit clean of microorganisms and decreases the frequency of maintenance
  • PerfectFLO water distribution optimizes efficiency and water usage
  • Protects wood floors and furnishings from drying and cracking
Bestseller No. 10
GeneralAire 1042LH Legacy Humidifier, 24V
  • For home sizes up to 2,800 sq. Ft
  • 17 gpd (based on 120° Plenum temperature)
  • Shut-off damper
  • Included:  mhx3c manual-control duct mount Humidistat
  • Replacement vapor pad number 990-13 (GFI #7002). replace 1-2 times per season

Last update on 2022-11-24 / Affiliate links / Images from Amazon Product Advertising API

What is a Whole House Humidifier?

A humidifier is the opposite of a dehumidifier, but that still does not say much, does it? In this extensive buying guide, you will find anything you need to know to be familiar with this highly useful product.

Firstly, we must say what a humidifier is before defining the “whole house” part. A humidifier is a device that increases the levels of humidity in a room or a building. Humidity is another factor, besides temperature, that defines whether a place will be warm or cold. Especially in the winter, when the weather is cold, the air in your house might be so dry that it causes many health problems.

For you to feel comfortable, the air needs to be moist to a certain degree. A humidifier will do this job for you, and it will provide the overall well-being of the members of your family. Moreover, it will maintain the excellent condition of your furniture. You will learn more about the benefits of using a humidifier in the next section.

Differences Between a Room Humidifier and a Whole House Humidifier

For now, it is important to note the difference between a room humidifier and a whole-house humidifier, which is also the subject of this article. A room humidifier is less powerful and smaller because of its purpose. It is designed to humidify the air in a single room. Often, people find it essential to have a high-quality bedroom humidifier so that their sinuses and throat can be relieved during nighttime.

A whole-house humidifier is not constructed to be moved from one room to another and to be plugged in for several hours. It is installed directly in your heating system’s ductwork, near your furnace. The heated air is thus humidified and distributed throughout the whole house by using a single unit.

Why Should You Trust Us To Get The Best Whole House Humidifier?

With so many choices available, it can be hard to identify the important information from the fluff. We’re here to help you sort through the haystack and find those needles of truth so that you may choose the best whole house humidifier for you.

Having years of experience in the industry and after studying the information on the market, with the tools and techniques available to us we are able to give you the best, unbiased information regarding whole house humidifiers.

We didn’t just study the information though. We put these systems to the test in real-world environments. Performing these tests on more than 40 different products is a time-consuming process, but we feel our readers deserve the best from us.

We are not here to promote any one particular product or another but are instead devoted to ensuring you have the highest quality information in your hands. This way, when the time comes to buying the best whole house humidifier, you will be ready to make the right choice considering a few things.

Our many hours of experience and research has given us the ability to bring you the definitive guide on the top-rated whole house humidifiers on the market today.

What are the Benefits of Whole House Humidifiers over other Humidifiers?

A whole house humidifier is convenient to use, since the only thing necessary is to install it, periodic maintenance if required, and be alert for any sign of breakdown. Being that these units are usually out of sight, they’re also often out of mind; so make it a habit to check now and then.

Unlike a console humidifier, you do not have to fill a tank constantly or clean any type of filtration system. You simply set it and forget it. Some models do require filter changes or cleanings every 3 6 or 12 months.

Some portable humidifiers require you to add special chemicals to the water, and, to avoid mold or bacteria from growing, they need to have the filters cleaned often. These filters may not cost much initially, but over time, the cost to keep them functioning correctly can add up.

In comparison, a central humidifier uses only fresh water and is never still long enough to become stagnant. As a bonus, they also use little or no electricity leading to cash saved via efficiency, but they can also pay for themselves over time, due to lower heating bills.

Portable humidifiers are bulky and take up a lot of room, even if they are the tower tank style. The larger your room, the larger the humidifier you will need to compensate and add the proper amount of moisture. You probably would also need one for each room to be effective.

A whole house humidifier is much more effective and energy-efficient than many smaller ones scattered around the house, and your furnace’s heating ducts provide a convenient route to every room for the freshly humidified air.

How Do Whole House Humidifiers Work?

Whole house humidifiers, unlike portable units, do not have a tank to fill. Instead, they connect directly to your water supply and to your heating system. This allows you to have your home’s moisture increased, without ever having to keep a reservoir full or trip over individual units in every room.

Some units even come with a humidistat, which is like a thermostat but for humidity. This unit detects the levels of humidity in your house and automatically adjusts the humidifier’s output to hit your target. Many humidistats even have digital controls.

This larger single unit, usually installed in a basement or wherever your furnace and/or hot water heater is, is much more effective and energy efficient than many smaller ones scattered around the house, and your heating ducts provide a convenient route to every room for the freshly humidified air.

All of this utility and convenience operates out of a single appliance, usually installed in a basement or wherever your furnace and/or hot water heater is.

TYPES OF WHOLE HOUSE HUMIDIFIERS

There are several general types of humidifiers. Which one you decide to get will depend on your specific needs and budget.

  1. Steam Humidifier: This type of humidifier heats water to the boiling point, then injects the hot steam through your ventilation ducts working very efficiently. The downside is that it takes energy to heat water and cold air conditioning may be compromised by this hot vapor.
  2. Bypass Humidifier: A bypass humidifier works by taking heat from the furnace system, which warms up the water into a mist. This mist then goes through the ventilation system. Many consider this as the best type of humidifier you can buy, but opinions do vary.
  3. Fan Powered Humidifier: Similar to a bypass humidifier in some ways, the fan powered humidifier has its advantages. It blows a fan directly across a water panel, which then sends the cool vapor/mist through a filter and into the duct-work. The fact it doesn’t need hot water means it can use less electricity and won’t interfere with your ice cold A/C.

Each type has its pros and cons, but all will work to make your home much more comfortable. You should take into account what is most important to you in your search for the best whole house humidifier, and weigh your options accordingly. You can view all the relevant facts in our research table.
Depending on your requirements, you can also check our reviews of the other types of humidifiers as well. We classified them based on their types and uses:

Considerations to Make When You Choose A Whole House Humidifier

Since the number of humidifiers on the market is so large, you will need to consider a few things before you decide on the best whole house humidifier for you. Consider things like if you live in a warm or cool climate and what your budget is so as to get all health benefits from your humidifier.

The first step to choosing the best whole house humidifier should be deciding what type of unit you want. If you have a furnace and central air conditioning in your home already, a bypass or fan-powered system might be your best choice.

To decide this you should measure or make an estimate of how many square feet your home is. Different systems are better for different amounts of space.

The unit you choose may have free installation, telephone or online assistance, or it may require you to do it all yourself using just the manual. This can make a big difference in which humidifier is best for your home as it will factor into the cost. Be confident in your skill before installing yourself.

Some whole house humidifiers will need cleaning and periodic maintenance, so you should read all the literature the manufacturer provides. You might need to change filters, replace parts or other things, sometimes frequently. You should also see if the unit has replacement parts readily available and what sort of warranty the unit comes with and its duration. We recommend at least a one-year protection plan from the manufacturer.

HOW WE PICKED AND TESTED

We have spent more than four years dedicated to researching these devices and identifying the best whole house humidifiers available.

In that time, more than 40 units have been tested and investigated by our team, in order to bring you the best knowledge you can have.

We spent close to two months using the products, in a community-based usage style, to see how well they performed in real-world environments. We considered the indoor environment before beginning.

Then, we measured the performance of the whole house humidifier. An analysis was made of their capacity, maintenance, installation, output, overflow protection, automatic settings, cost, and even more important factors.

Each of these factors makes a difference in the overall performance and even in the lifetime of the units. If, for instance, a humidifier has a large tank capacity but lacks automatic adjustments and power, it might be considered a detriment, since it will need to be frequently refilled due to being constantly on.

Our deep analysis of these factors is unlike any other market research available, and we are proud of the discoveries we have been able to make. Through these tests, we have been able to determine the best whole house humidifier on the market today. It has been a meticulous task, but we feel it is worth it if it helps make your choice of the best whole house humidifier any easier.

How to Install a Whole House Humidifier

The installation process varies from one humidifier type to another. In most cases, you’ll find the installation instructions in the manufacturer’s manual. Many manufacturers are also open to providing an installation support, whether through live chat or a phone call.

Regardless, the basics remain the same. You’ll need about two hours to mark the template, cut holes, and complete the installation.

What you need;

  • A cordless drill and bit
  • Wire straps
  • Screwdriver
  • Adjustable wrench
  • Aviation snips
  • Wire nuts
  • Sheet metal screws
  • Felt tip marker
  • Vent pipe
  • The humidifier unit

The installation process;

Once you have the tools and materials listed above, it’s time to begin the installation. Remember to shut off the furnace before you start. Proceed as follows;

  • Mark the hole: Using the manufacturer’s template and instructions, use the felt-tip marker to mark the hole for the humidifier. Drill a starter hole in the corner of the outline. Then, using aviation snips, cut out the hole. Also, drill screw holes and, using the sheet metal screws, attach the mounting plate.
  • Mark the outline of the humidifier: Refer to the manufacturer’s guide for this step too. Mark the outline of the humidifier and cut out the hole.
  • Install the unit: Mount the plate and attach the humidifier. Then, connect the humidistat to the furnace controls and install the step-down transformer (if needed). Shut off the power first.
  • Connect the humidifier: You’ll need the right size wire nuts for this step. Using the nuts, connect the humidistat to the solenoid valve on your humidifier, and insert wire ends into the nuts. Then, tighten the nuts as appropriate.
  • Connect the water line: Depending on your local codes, you might be allowed to tap water directly from the water lines. If that’s the case, install a saddle valve on the waterline and run it to the humidifier. Where saddle valves aren’t allowed, cut the waterline, and install a T-fitting.
  • Install the bypass valve: This step is necessary only if your humidifier requires a bypass vent. Mark the hole, drill a starter hole, cut the vent hole, and install a round collar in the hole. Then, install elbows in both ends of the vent pipe and fasten the assembly to the humidifier air intake and the collar.

That’s it. Your whole-home humidifier is now ready for work! If you encounter any problems, contact the manufacturer’s support team.

How Much Does It Cost to Install a Whole-House Humidifier?

The cost of installing a whole-house humidifier depends on three main factors; the humidifier type, size of the humidifier in relation to the home, and whether you choose to DIY or hire an HVAC professional.

Humidifier type: With regards to type, bypass humidifiers are the easiest and, therefore, least costly to install. Steam humidifiers, meanwhile, are the most complex and simultaneously most expensive to install.

Size of the humidifier: The larger the humidifier, the more expensive it’s likely to be. When you factor in the impact on handling, these larger, heavier humidifiers can also be more expensive to install.

DIY or professional installation: Finally, DIY installation is cheaper because you eliminate labor charges. However, you’ll need to buy a few tools that an HVAC professional probably already has. Professionals tech to charge between $200 and $400 for labor.

How Long Does a Whole House Humidifier Last?

How long your whole house humidifier lasts will depend on two main factors; the expected life span and how well you maintain the unit. The best humidifiers have a lifespan of 10 to 15 years. With proper maintenance, however, the unit can last up to 20+ years.

Where Should a Whole House Humidifier be Placed?

As already mentioned, most whole-house humidifiers are installed directly on the home’s heating system. It can be installed on the supply or return end of the air system, depending on the humidifier type.

For a few models that aren’t installed on the furnace, it’s recommended that you place the unit in an open area away from items that might block airflow. So, avoid corners and regions close to furniture and other solid items.

Instead, place the unit in a central location. It can be anchored in the hallway if the doors in your home tend to stay open most of the time. If you live in a modern open-concept home with no hall, place the humidifier in the room where it will benefit home occupants the most. Family rooms and living rooms are excellent options.

Whole House Humidifier Maintenance/Cleaning

Each humidifier type requires different maintenance practices. However, there are a few essential maintenance activities needed irrespective of the type of humidifier you’re using. These include;

  • Clean the system’s pump and fan: Pour a cup of vinegar solution (half cup water and half a cup of white vinegar) into the fan system wipe the entire area, including the vents, gently using a soft piece of cloth.
  • Clean the media panel: Power off the humidifier and remove the media panel. Then, use elbow grease to wipe out the grime, debris, mineral deposit, and sediment.
  • Inspect the drain line: You want to make sure that the drain line is free from blockages, algae, and mineral deposits.
  • Inspect the solenoid valve: Is the water flowing properly? Also, check for signs of wear and tear. If need be, replace the valve.
  • Clean the orifice metering device: This metering device regulates the flow of water into the humidifier’s distribution tray. Make sure to rid it of any mineral deposits.

The above maintenance activities should be performed at least once every year, especially in the few weeks leading to the heating season.

COLLUSION

This was a list of 13 best furnace humidifiers for your house. Most of the list is dominated by Honeywell, Aprilaire, and GeneralAire. All of these three plants are highly dominated in the Canadian market. 

You can choose any of these. Are you need to consider before choosing is the size and capacity. If you have a small house, you can prefer purchasing any of these that are suitable for a room of 3000 ft.². 

But if you have a larger room then any of these that is suitable for more than 3000 ft.² would be efficient. Just like Aprilaire 700 can cover almost 4200 ft.² and can remove 18 gallons of water per day. This is effective and also has a good build. Now it’s your choice to decide the best. 

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