Aprilaire Humidifiers
Aprilaire humidifiers are a type of whole-home humidification system that helps to maintain comfortable and healthy indoor air quality levels by adding moisture to the air. These humidifiers are designed to work with your home’s heating and cooling system, and are installed directly into your HVAC system ductwork.
Aprilaire humidifiers come in a range of models and sizes to fit any home or building, from small residential units to large commercial systems. They use advanced technology to provide precise humidity control, with features such as digital controls and automatic humidity sensors to ensure that the humidity levels in your home or building stay within a comfortable range.
Benefits of Aprilaire humidifiers include improved respiratory health, reduced static electricity, and protection of wooden furniture and floors from cracking and warping due to dry air. They can also help to reduce energy costs by making your home or building feel warmer and more comfortable at lower thermostat settings.
If you’re considering an Aprilaire humidifier for your home or building, it’s important to work with a licensed and experienced HVAC contractor who can provide expert installation, maintenance, and repair services. At Delta T Heating and Cooling, our team of experienced technicians can help you choose the best Aprilaire humidifier for your needs and provide professional installation services to ensure that it is installed correctly and functions efficiently.
We also offer maintenance and repair services for Aprilaire humidifiers to help ensure that they continue to function at optimal levels. Contact us today to schedule your Aprilaire humidifier installation, repair, or maintenance service and experience the Delta T difference for yourself.

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Model 500MK

Description
Aprilaire – The small to medium bypass humidifier is a whole-home solution that helps you achieve total comfort though humidity control. The Model 500 is installed in the HVAC ductwork.
Features
- Delivers optimal levels of humidity control with manual humidifier control
- Provides vital service, temperature and relative humidity indicators
- Humidifies tightly constructed homes up to 3,000 sq. ft. in size
- Performs quietly with simple annual maintenance
- Comes equipped with a drain to flush minerals from the unit
- Incorporates easy right or left discharge change-over
- Has an evaporation capacity of 0.50 gph
Model 600MK

Description
Aprilaire – The large capacity bypass humidifier is a whole-home solution that helps you achieve total comfort though humidity control. The Model 600 uses the furnace blower to move air through a water panel.
Features
- Built-in bypass damper means fewer parts to install
- Delivers up to 50% more moisture than competitive units
- Has an evaporation capacity of 0.70 gph
- Humidifies tightly constructed homes up to 4,000 sq. ft. in size
- Delivers optimum levels of humidity control with manual humidifier control.
- Provides vital service, temperature and relative humidity indicators
- Performs quietly with simple annual maintenance
- Incorporates easy right or left discharge change-over
Model 700M

- BUY WITH CONFIDENCE: This humidifier was designed and manufactured in the U.S.A. by AprilAire—the inventor of the whole-house evaporative humidifier, and the leader in Indoor Air Quality since 1954.
- ONBOARD CONTROL SENSOR: Automatically turns on the HVAC fan to measure the relative humidity inside the ductwork and from all parts of the home. Turns on the humidifier whenever the measured humidity drops below the set point.
- CONVENIENT CONTROL: To monitor and adjust the humidity with a high-contrast digital screen.
- WHOLE-HOUSE HUMIDIFICATION: For Ducted HVAC Systems.
- FULL COVERAGE: For tightly constructed homes up to 5,300 square feet, with a capacity of 18 gallons per day.
Steam – 800LC

- FULL COVERAGE up to 6,200 square feet in tightly built homes. Choose from 6 levels of output adding 11.5 to 34.6 gallons of moisture into the air per day based on voltage and installation
- LOW CONDUCTIVITY The Model 80LC canister is optimized for use in areas where the water conductivity is less than 300 uS/cm or when the Steam Humidifier is installed at 120VAC
- PURIFIED WATER NOT REQUIRED Electrode technology requires impurities in the water to promote the transfer of electricity. Water filtration is not recommended – minimizing installation complexity and operating costs
- CONVENIENT DIGITAL CONTROL shows percent humidity, lights indicate humidifier is running and when service is needed, and Blower Activation switch sets humidifier to run continually, or only when the furnace runs
Disclaimer: Please note that the information contained on this page may be out of date. While we strive to keep our content up to date, changes may occur that are not immediately reflected on this page. Therefore, we recommend that you independently verify any information by visiting https://www.aprilaire.com/whole-house-products/humidifier before making any decisions or taking any actions based on the content of this page. We are not responsible for any errors or omissions, or for any losses or damages that may arise from reliance on the information presented on this page.
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