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  1. #27
    Join Date
    Oct 2019
    Posts
    24
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    DR65 is right option but why the contractors are saying that higher capacity will be ideal? If you do not mind higher energy cost then go for it. But higher capacity dehumidifier does not make sense. Please do not only rely on dehumidifier and keep your HVAC filters clean to keep the air quality fresh.

  2. #28
    Join Date
    Jan 2005
    Posts
    38
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    teddy what is the preferred method to bring in fresh air with the 65 Honeywell?
    Last edited by opey456; 10-27-2019 at 03:45 PM. Reason: typo

  3. #29
    Join Date
    Jun 2003
    Location
    Madison, WI/Cape Coral, FL
    Posts
    9,633
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    Quote Originally Posted by opey456 View Post
    teddy what is the preferred method to bring in fresh air with the 65 Honeywell?
    Install is important. If you want 60-70cfm of fresh air, a 6" insulated duct from the fresh air inlet grill with a screen to the dehumidifier. The small whole house units have an 8" duct inlet. A tee is needed to combine the 6" to the 8" return from the open part of the home. Avoid connecting the dehumidifier return to the a/c return. If the fresh air duct is more than 20 ft long, upsize the 6" to an 8" to avoid excessive air flow restriction. Some add an adjusting damper for fine tuning and also a electric damper for switching on/off.
    Fresh air should be on during occupancy especially during mild weather/windows closed. During the coldest winter weather when the home is too dry stop or slow fresh air.
    Welcome aboard fresh air and humidity control.. Keep us posted on how it works out.
    Regards Teddy Bear

    One more important point is that your a/c is setup with correct amount of air flow through the cooling coil. A good a/c setup with maintain <50%RH when the a/c is operating +50% of the time without an assistance from the dehumidifier. If not, adjust the air flow through the cooling coil to remove enough moisture. A good tech will do this for you.
    Bear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
    Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
    Use +Merv 10 air filter. -Don't forget the "Golden Rule"

  4. #30
    Join Date
    Jan 2005
    Posts
    38
    Post Likes
    Yes we usually setup our units for proper airflow to maintain good humidity setting. But with everyone foaming houses now we are starting to see more of a need for dehumidifiers, and wanting to bring in fresh air also. Just was curious your preferred method. Some install manuals can be pretty vague as to what works best.

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