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The Ultra-Aire 100v 110-pint dehumidifier by Thermastor

Ultra-Aire 100v 110-Pint Ventilating Dehumidifier

Model: 4029710 | SKU: ul3686
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Price: $2698.00
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  • In Stock - Order Now. Your item will ship Tuesday, May 26th

  • Product Overview

    Tame skyrocketing humidity all throughout your home with the Ultra-Aire 100V 110-Pint Ventilating Dehumidifier. This large capacity dehumidifier ties directly into your home's ductwork to reduce the overall humidity level and provide fresh air ventilation in every room. Removing 110 pints of moisture per day, this model is ideal for average-size homes up to 2,500 square feet.

    Popular installation options include a basement, crawl space, attic, closet, or mechanical room. Plus, like all Ultra-Aire dehumidifiers, this unit is proudly made in the USA by Wisconsin-based Therma-Stor.

    Small Footprint, Efficient Operation

    The Ultra-Aire 100V Dehumidifier features a vertical design and a smaller footprint than other Ultra-Aire models. This feature makes it ideal in applications where floor space may be limited. The 100V is also a super-efficient unit. Carrying the Energy Star seal, this model uses 15% less energy to remove moisture than similar-sized dehumidifiers. It's also built with a more efficient refrigeration coil, compressor, and fan. The system draws only 6.4 amps of power max while operating, which contributes to an impressive moisture removal energy factor of 3.0 liters per kilowatt hour.

    Fully Customizable Installation

    The Ultra-Aire 100V Dehumidifier is designed to integrate into your home's ductwork, creating a full-scale humidity control solution for your home. The most popular installation options for this model 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 our extensive offering of Ultra-Aire 100 V Accessories.

    Options for Setting Your Desired Humidity

    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-Aire unit 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

    • Continuous Drain Capable - The 100V comes supplied with an 8-foot drain hose for convenient continuous gravity draining.
    • Condensate Pump Kit Available - If you prefer, 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 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 9-foot power cord helps make installation options more flexible.
    • Made in the USA - All Ultra-Aire whole house ventilating dehumidifiers are made in the USA with quality components by Wisconsin-based Therma-Stor.


    The Ultra-Aire 100V 110-Pint Ventilating Dehumidifier reduces your home's overall humidity and adds fresh air ventilation to create a more comfortable indoor environment.

    What Customers Love

    • Small Footprint - This unit's vertical design and compact footprint helps it fit smoothly in spots where you have limited floor space. 
    • Fully Customizable System - A variety of accessories are available - including ducting kits, dampers, an external pump kit, added air filtration, and remote humidity controllers - to 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 100V Owner's Manual
    User's Guide for 100v Ventilating Dehumidifier
    Ultra-Aire 100V External Installation Guide
    110-Pint Dehumidifier External Installation Instructions
    Ultra-Aire 100V Control Panel Installation Instructions
    100v Dehumidifier Control Panel Installation Guide
    Spec Sheet for Ultra-Aire 100V Dehumidifier
    Ultra-Aire 100-Pint Dehumidifier Specs

    What's In The Box?

    • Ultra-Aire 100V 110-Pint Dehumidifier
    • 2 Round Duct Inlet Collars (6 inch and 8-inch)
    • 1 Round Exhaust Collar (8-inch)
    •  Owner's Manual

    View All Dehumidifiers »
  • Specifications

    Residential UseWhole House, Basement, Crawl Space
    Manufacturer-Stated Capacity110 pints
    Low Temperature Operation (41 degrees F and Under)No
    Manufacturer-Suggested Room Size 2500 sq. ft.
    Practical Room Size 2500 sq. ft.
    Energy StarYes
    Energy Factor3 L/kWh
    Width21 in.
    Depth17 in.
    Weight119 lbs.
    Internal Condensate PumpNo
    Continuous Drain CapableYes
    Drain Hose IncludedYes
    Drain Hose Diameter.56 in.
    Humidistat No
    Automatic DefrostYes
    Fan Operation Runs Continuously
    Number of Fan Speeds1
    Cubic Feet Per Minute (Max)240 CFM
    Number of Filters1
    Filter TypeMERV-11
    Auto Restart On Power FailureYes
    Refrigerant TypeR-410A
    Maximum Amperage6.4 Amps
    Voltage110-120 V
    Power Cord Length9 ft.
    Safety CertificationsUL, CSA
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