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The Ultra-Aire 90H 90-pint dehumidifier by Thermastor

Ultra-Aire 90H 90-Pint Ventilating Dehumidifier

Model: 4029820 | SKU: ul3685
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Price: $1805.00
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  • In Stock - Order Now. Your item will ship Tuesday, Mar 3rd

  • Product Overview

    Enjoy a more comfortable home and healthier indoor air quality with the Ultra-Aire 90H 90-Pint Ventilating Dehumidifier. This whole house dehumidifier ties directly into your home's ductwork to reduce the overall humidity level throughout the house. This model is rated to remove 90 pints of damaging moisture per day at AHAM conditions and designed to handle up to 2,200 square feet. That makes it ideal for medium-sized homes. Popular installation options include a basement, crawl space, attic, closet, or mechanical room. You can also add accessories for fresh air venting for improved indoor air quality year-round. Plus, like all Ultra-Aire products, this unit is proudly made in the USA.

    Low-Clearance, Remarkably Quiet Design

    The Ultra-Aire 90H Dehumidifier features an innovative design that fits snugly into low-clearance areas. Its unique outer cabinet allows you to convert airflow vertically or horizontally out of the unit in a few simple steps. Both of these features make easier and more flexible installation possible in confined spaces. You'll be able to install the unit in areas where other dehumidifiers won't fit because of ducting problems, size constraints, or maintenance difficulties. The dehumidifier also features an ultra-quiet design made possible by a well-insulated cabinet that minimizes noise.

    Fully Customizable Installation

    This model is designed to integrate into your home's ductwork, creating a full-scale humidity control solution for your home. The most popular installation options include installing the unit in your basement, crawl space, attic, closet, or a mechanical room. A variety of ducting accessories are available to customize a configuration for your home's needs. Check out all of our Ultra-Aire 90H Dehumidifier accessories.

    *Please note - Ultra-Aire dehumidifiers require professional installation by a qualified contractor. If you are a homeowner, you may first want to consult your contractor on accessories needed for installing the unit in your preferred configuration.

    Remote Humidity Controller Options

    You must purchase a remote dehumidistat controller in order to control this dehumidifier. Therma-Stor has a few options available. All of the control units below are wired directly to the Ultra-Aire90 H using 24-volt pig tail wiring.

    • Honeywell H46C 1166 Wall-Mounted Humidistat - The Honeywell H46C is a basic analog humidistat you can use to control humidity. It features a manual dial control you'll use to set your desired humidity.
    • Ultra-Aire DEH 3000 Digital Controller - The DEH 3000 is an all-digital controller that allows you to monitor and control humidity, manage fresh air ventilation, and activate air filtration for the unit from your living space.
    • Ultra-Aire DEH3000R Digital Controller - The DEH 3000R is similar to the DEH 3000, but it also features a remote sensor that can be placed up to 100 feet away from the controller. This sensor allows you to control and monitor humidity conditions in a separate area and keep the wall-mounted controller out of sight.

    Accessories for Fresh Air Ventilation

    You may want to configure your Ultra-Aire system to provide fresh air ventilation to your home while it dehumidifies. Doing this brings fresh air into your home. Today’s well-sealed homes can create a build-up of indoor air pollutants, resulting in air that is far more polluted inside than outside. Sources of indoor air pollutants include fireplaces, off-gassing furniture and flooring, cleaning supplies, pets, and gas-burning appliances. Fresh air venting creates a safer living environment for you and your family. It's also a popular option for light and natural dehumidifying during drier months when you wouldn't normally run your dehumidifier. For this application, you'll need to purchase an inlet hood, your preferred ducting accessories, and a digital controller like the DEH 3000 or DEH 3000R.

    Additional Features

    • Condensate Pump Kit Available - Ultra-Aire dehumidifiers are designed to gravity drain collected condensate. However, you can attach an external condensate pump to customize a draining system that can drain condensate upward or across longer distances to a nearby drain.
    • MERV-11 Air Filtration - This model comes standard with a MERV-11 air filter to capture harmful allergens and particles and keep the unit running at peak efficiency.
    • Optional MERV-14 Filter Available - You can add a MERV-14 filter to improve air filtration. The MERV-14 filter (sold separately) is 90-95% efficient in removing particles between 0.3 and 1 micron. When you add this filter, the MERV-11 filter functions as a pre-filter.
    • Low Temperature Operation - Operates in temperatures as low as 56 degrees F and includes an auto defrost function to automatically melt frost build-up in chilly conditions.
    • Long Power Cord - A 7.5-foot power cord helps make installation options more flexible.
    • Made in the USA - All Ultra-Aire products are made in the USA with quality components by Wisconsin-based Therma-Stor.


    The Ultra-Aire 90H 90-Pint Ventilating Dehumidifier tames skyrocketing humidity in your home, helping protect your investment and increase your comfort. 

    What Customers Love

    • Designed for Easier, Flexible Installation - Reconfigure airflow discharge either horizontally or vertically from the unit in just a few simple steps. This feature allows for more flexible installation.
    • Fully Customizable System - A variety of Ultra-Aire 90H accessories - including ducting kits, dampers, an external pump kit, added air filtration, and remote humidity controllers - help you fully customize your unit's installation to your preferred specifications. 

    Things To Consider

    • Requires Professional Installation - Ultra-Aire dehumidifiers should only be installed by professional qualified contractors. You may also want to consult your contractor prior to purchasing accessories for custom installation.

    Manufacturer's Warranty

    5-Year Limited Warranty including 1 Year Parts and Labor and 5 Years on the Condenser, Evaporator, and Compressor

    Manufacturer's Literature

    Ultra-Aire 90H Owner's Manual
    Installation & User's Guide for 90H Ventilating Dehumidifier
    Spec Sheet for Ultra-Aire 90H Dehumidifier
    Ultra-Aire 90-Pint Dehumidifier Specs

    What's In The Box?

    • Ultra-Aire 90H 90-Pint Dehumidifier
    • 2 Duct Inlet Collars (6-inch and 10-inch)
    • 1 Round Exhaust Collar (10-inch)
    • Owner's Manual

    View All Dehumidifiers »
  • Specifications

    Residential UseWhole House, Basement, Crawl Space
    Manufacturer-Stated Capacity90 pints
    Capacity at AHAM 90 pints
    Capacity at Saturation 180 pints
    Manufacturer-Suggested Room Size 2200 sq. ft.
    Practical Room Size 2200 sq. ft.
    Height21 in.
    Width15.5 in.
    Depth34.5 in.
    Weight92 lbs.
    Continuous Drain CapableYes
    Drain Hose IncludedNo
    Humidistat No
    Automatic DefrostYes
    Fan Operation Runs Continuously
    Number of Fan Speeds1
    Cubic Feet Per Minute (Max)240 CFM
    Number of Filters1
    Auto Restart On Power FailureYes
    Refrigerant TypeR-410A
    Maximum Wattage710 W
    Voltage110-120 V
    Power Cord Length7.5 ft.
    Energy StarNo
    Energy Factor2.5 L/kWh
    Safety CertificationsCSA, UL
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