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Honeywell 220/260 Flow Through Humidifiers


  • Capable of humidifying a large area.
  • Proven technology used for high performance humidification and enhanced comfort.
  • Includes easy-to-use humidity control which mounts on the wall or duct for more installation flexibility.
  • Perfect Climate Comfort Center control can be installed to replace both the thermostat and humidity control for improved aesthetics and convenience.
  • Continuous flushing reduces the frequency of maintenance in a hard water installation.

What's the best setting for my humidistat?

For the greatest comfort and best indoor air quality in your home, set your humidity between 30 and 40 percent humidity. At that level, health-endangering conditions (such as bacteria, viruses, fungi, mites, ozone production, etc.) are greatly reduced.

How much humidity should I have in my home?

The short answer is 35%; however, the ideal range by most research is between 40% and 60%, if the home is properly constructed to handle humidity that high. That is why the compromise level agreed to by ARI Standards is 35%.

I'm getting too much humidity. What should I do?

Make sure your humidifier is set to the proper setting. See question 1. If the set point is below the actual humidity in the space, and the control is operating properly, the humidifier is not contributing to the problem. You may need to increase ventilation to maintain the proper level of humidity.

How often should I service my humidifier?

This will vary depending upon the type of humidifier you have, the hardness of your water and the operating time of your unit. If you have a Honeywell flow-thru unit, once a year is generally sufficient.

Which Honeywell humidifier is best for my home?

This question takes an in-depth answer due to the complexity of selecting the proper humidifier for each application. Listed below are the factors you must consider to properly determine the correct units.

  • Size of area to be humidified
  • Climate
  • Type of heating system
  • Level of control (Rh maintenance level)
  • Water quality and cost

Should my humidifier operate during the summer months?

Because summer air is naturally more humid in most parts of the country, it is generally not necessary to humidify during the summer months. In fact, dehumidifier is often desirable. Fortunately, your air conditioner is an effective dehumidifier. There are parts of the country where the climate requires humidification in conjunction with cooling to maintain proper indoor air quality. This specific application requires in depth knowledge of psychometric conditions throughout the HVAC system.

Why is humidification so important in a new home?

First to improve healthfulness of the home by limiting the growth of bacteria, viruses, etc. The second is to protect the structure itself. New home interiors today are often enhanced by the use of expensive hardwood for floors, staircases, hand railings, cabinets, door trim and miscellaneous moldings. Most of this woodwork is manufactured in a controlled environment of about 50 percent relative humidity. If you take these moisture-sensitive hardwoods and move them from the humidified mill to an un-humidified home, they are suddenly exposed to a rapid drop in humidity. The unavoidable result is shrinkage that cheapens the appearance and value of the home.

How do you measure humidity?

Humidity is expressed by measuring the amount of moisture present at a given temperature versus the amount of moisture the air is capable of holding at the same temperature. This moisture level is expressed as a percentage, measured by using a sling psychometric and psychometric charts or an electronic analog type hygrometer.

Can I use a humidifier with an electronic air cleaner?

Yes. Evaporation type humidifiers release water as pure vapor. Water vapor will not create any problems with an electronic air cleaner. Misting or spray type units mounted on the return air plenum could cause problems with an electronic air cleaner.

How often should the humidifier pad be replaced, and how is it done?

Honeywell recommends annual humidifier pad replacement, especially in areas with hard water. Replacing the pad takes only a minute or two. Loosen one thumbscrew and the cover easily lifts off. Remove the humidifier pad assembly, which unsnaps easily, and drop in the new pad. Give us a call and we will deliver and install your new pad, or you can pick one up from our office.