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Shopping for a Whole-House Humidifier? We Can Help


With cold weather lingering outside and dry air inside, the Northern Virginia heating season can be downright unbearable. While you can’t control the mercury outside, you can control the humidistat inside your home and set it to optimal humidity levels. If you’re shopping for a whole-house humidifier to enhance the comfort in your home this winter and early spring, you have found the right resource.

How Whole-House Humidifiers Work

The same system that helps create dry indoor air – forced-air heating system – is also tapped to disperse moisture throughout the home. Whole-house humidifiers are affixed to the air ducts of the heating system, and use the heating system blower or an onboard fan. This is how it works:

  • Water is automatically received (and drained) through the home’s plumbing.
  • Water trickles down a media panel as airflow is simultaneously channeled through.
  • Water vapor is carried through the ducts to the living spaces.
  • A humidistat monitors and controls humidifier operation to maintain optimal indoor humidity (much like a thermostat monitors and controls temperature).

Humidifier Shopping Guide

Consider these tips and steps when shopping for your whole-house humidifier:

  • Ask your HVAC professional which whole-house humidifier technology will fit your home system.
  • Your HVAC pro should also size the humidifier in order to meet the coverage needed (square footage) of the living spaces.
  • The air ducts should be evaluated for air leaks and adequate insulation. This saves energy and prevents water vapor from leaking into the attic, walls and basement, which could cause mold growth.
  • Purchase a fully automatic humidifier that incorporates a humidistat, and one that uses the home’s plumbing for water supply and drainage.
  • Compare the maintenance costs, parts and time involved of different models, and install the humidifier in a manner that allows easy access.
  • Whole-house humidifiers pump, evaporate and drain substantial amounts of water during the heating season. Ask your HVAC pro if any special steps are needed for water filtration or softening.

For more whole-house humidifier tips for your Fairfax area home, please contact us at HVAC & Plumbing Unlimited Heating & Air Conditioning.

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