9.4
Research Products Humidifiers
High-output evaporative and steam systems designed for comprehensive whole-house moisture control. These manual units integrate with your home infrastructure to cover expansive floor plans up to 10,300 sq ft
2 Research Products humidifiers in this catalog
Also in White Whole house
Massive Coverage
Systems are available to humidify homes up to 10,300 sq ft.
Versatile Installation
Options include furnace-mounted units or wall-mount fan systems.
High Output
Manual controls allow for high-capacity moisture delivery across the house.
The short list
After reading 8 reviews
The upsides
- High humidity output 4
- Self installation 3
- Durable build quality 2
- Quiet operation 2
- No digital features 1
- Replaces portable units 1
Called out less
- Condensation issues 2
- Difficult placement requirements 2
- Humidistat regulation problems 2
- Awkward connector placement 1
- No digital features 1
- Quiet operation 1
- Self installation 1
What people say
The 600M furnace humidifier has made a huge difference in my 5,000 sq ft home.
I used the 865 steam model for my house without ducts and the wall-mount fan works great.
The high output of these manual units ensures the entire house stays comfortable all winter.
Whole House Environmental Control
The AprilAire series includes both evaporative furnace-mounted models and steam units with wall-mount fans. These white, high-capacity systems are engineered for manual operation and maximum output.
- Evaporative furnace humidifiers
- Whole-house steam systems
- Manual high output control
- Wall mount fan integration
- Coverage up to 10,300 sq ft
- Ductless system compatibility




This range
Research Products focuses on White humidifiers, Whole house humidifiers in the current models.
Under the hood
Read the listed parts and finishes — Manual whole house furnace humidifier for homes; Wall mount steam humidifier for ductless homes — rather than a slogan.
Day-to-day use
These Research Products humidifiers line up with White humidifiers, Whole house humidifiers.
Look here first
Use White humidifiers, Whole house humidifiers to tell one Research Products model from the next.
AprilAire Questions
What is the maximum coverage area?
Certain models can cover large homes up to 10,300 sq ft.
Can I use these without HVAC ducts?
Yes, the steam humidifier with a wall-mount fan is for homes without ducts.
What technology do they use?
These products include both evaporative and steam humidification systems.
Are these automatic or manual?
The AprilAire 600M and 865 are manual high-output humidifiers.