Aprilaire / Humidifiers
AprilAire 400M 17-gal Whole-House Evaporative Humidifier with Manual Control for up to 5 000 sq ft AprilAire Model
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AprilAire 400M 17-gal Whole-House Evaporative Humidifier with Manual Control for up to 5 000 sq ft AprilAire Model, $431.99, Availability unknown. Image 1 of 18.
- Selected option
- AprilAire 400M 17-gal Whole-House Evaporative Humidifier with Manual Control for up to 5 000 sq ft AprilAire Model
- SKU
- JC3874
Source specifications
- Brand
- Aprilaire
- Special Feature
- Adjustable Humidity Control, Auto Shut Off, Humidistat, Quiet
- Color
- Gray
- Capacity
- 17 G/day
- Floor Area
- 5000 Square Feet
- Product Dimensions
- 10.25 x 15.38 x 15.75 inches; 10 Pounds
- Item model number
- 400MK
- Manufacturer
- Research Products Corporation
The details
About this item
The AprilAire 400M Whole-House Humidifier is designed for homes up to 5,000 sq. ft. Its innovative design uses 100% of the water that enters the system, utilizing a unique evaporative process that's perfect for homes with a septic system to deliver balanced humidity throughout the entire home while saving on water and energy costs. The included manual humidistat lets you control the humidity level throughout your home. While balanced humidity exists between 40–60%, it's important to remember that outdoor temperature and other home factors will impact what relative humidity level is attainable and recommended for your house. You’ll enjoy balanced humidity thanks to the evaporative process, which works by passing hot, dry air from your furnace over the interior water panel to add moisture before returning the humidified air into your home using the existing blower fan in your HVAC BALANCED HUMIDITY FOR HEALTH AND HOME PRESERVATION – Help minimize the formation of bacteria, viruses, fungi, and dust mites that thrive in low humidity and help preserve wood floors, cabinetry, furnishings, and other items susceptible to dry air; WHOLE-HOUSE HUMIDIFICATION – Deliver 17 gallons of moisture
- BALANCED HUMIDITY FOR HEALTH AND HOME PRESERVATION – Help minimize the formation of bacteria, viruses, fungi, and dust mites that thrive in low humidity and help preserve wood floors, cabinetry, furnishings, and other items susceptible to dry air
- WHOLE-HOUSE HUMIDIFICATION – Deliver 17 gallons of moisture per day in homes up to 5,000 sq. ft. with a water-saving design using 100% of the water passing through the system reducing energy and water costs. The water panel removes impurities before adding moisture to the air. Use genuine AprilAire 45 Water Panel for twice annual replacement
- MANUAL CONTROL – The included Model 4655 Manual Humidistat monitors your home's air providing precise control and the onboard sensor actively measures the relative humidity throughout your home and turns on the humidifier when needed giving you peace of mind
- INSTALLATION KIT – No need to find the parts yourself. This convenient bundle comes with all of the genuine AprilAire parts needed for installations in homes with ducted heating systems plus detailed installation instructions
- BUY WITH CONFIDENCE – AprilAire Whole-House Humidifiers are designed and assembled in the USA using US and global components by AprilAire, the leader in Indoor Air Quality solutions for the home since 1954, and come with a 5-year warranty
- INCLUDES – 400M Whole-House Humidifier, Model 4655 Manual Humidistat, (2) genuine AprilAire 45 Water Panels, (4) #8 x 3/4 Mounting Screws, 6" Round Duct Collar, 6" Bypass Flex Duct (2 ft.), ¼" outside diameter (OD) Water Supply Tube (25 ft.), ½" interior diameter (ID) Drain Tube (10 ft.), ⅝" Hose Clamp, AprilAire Current Sensing Relay Model 50, 18/2 Thermostat Wire (10 ft.), and (4) Twist-On Wire Nut Connectors
From the manufacturer
Product details
The AprilAire 400M Whole-House Humidifier is designed for homes up to 5,000 sq. ft. Its innovative design uses 100% of the water that enters the system, utilizing a unique evaporative process that's perfect for homes with a septic system to deliver balanced humidity throughout the entire home while saving on water and energy costs. The included manual humidistat lets you control the humidity level throughout your home. While balanced humidity exists between 40–60%, it's important to remember that outdoor temperature and other home factors will impact what relative humidity level is attainable and recommended for your house. You’ll enjoy balanced humidity thanks to the evaporative process, which works by passing hot, dry air from your furnace over the interior water panel to add moisture before returning the humidified air into your home using the existing blower fan in your HVAC system. The water panel is essential to the process, ensuring the removal of impurities from the water and providing uniform, high evaporation for whole-house humidification. AprilAire invented the whole-house evaporative humidifier in 1954, and this unit is designed and assembled in the USA utilizing US and global components. It offers multiple options for installation, making it simple to experience the benefits of balanced humidity throughout your living space.
Highlights: BALANCED HUMIDITY FOR HEALTH AND HOME PRESERVATION – Help minimize the formation of bacteria, viruses, fungi, and dust mites that thrive in low humidity and help preserve wood floors, cabinetry, furnishings, and other items susceptible to dry air WHOLE-HOUSE HUMIDIFICATION – Deliver 17 gallons of moisture per day in homes up to 5,000 sq. ft. with a water-saving design using 100% of the water passing through the system reducing energy and water costs. The water panel removes impurities before adding moisture to the air. Use genuine AprilAire 45 Water Panel for twice annual replacement MANUAL CONTROL – The included Model 4655 Manual Humidistat monitors your home's air providing precise control and the onboard sensor actively measures the relative humidity throughout your home and turns on the humidifier when needed giving you peace of mind INSTALLATION KIT – No need to find the parts yourself. This convenient bundle comes with all of the genuine AprilAire parts needed for installations in homes with ducted heating systems plus detailed installation instructions BUY WITH CONFIDENCE – AprilAire Whole-House Humidifiers are designed and assembled in the USA using US and global components by AprilAire, the leader in Indoor Air Quality solutions for the home since 1954, and come with a 5-year warranty INCLUDES – 400M Whole-House Humidifier, Model 4655 Manual Humidistat, (2) genuine AprilAire 45
Key details: Product Dimensions: 10.25 x 15.38 x 15.75 inches; 10 Pounds | Customer Reviews: 4.4 4.4 out of 5 stars (258)
How it fits your day: Use the key specs and highlights above to match it to your setup, space, or routine before you check out.
Customer feedback: 4.4/5 average rating.
Customers say: Customers find the humidifier works well and appreciate its quality, value, and water conservation features.
Review snippets: I had an old, old, old unit attached to the furnace when I bought the house. This thing was terrible. I think it was actually more of a breeding ground for germs and bacteria than a humidifier. That old piece / Coming off an older unit that basically dumped gallons of water down the drain daily during heating season, this unit is a world of difference. I haven’t gotten my next water bill bill yet, but doing some monitoring myself, I’m