Saturday, 26 September 2020

Whole House Dehumidifier Without Ducts?

A couple of years ago, I bought a Carrier Ductless Mini Split system. The two main features that sold me on it both turned out to be worthless. The zoning is pretty ineffective, when one gets heat they all do and it varies fan speed to supply more heat to one space. However, each space still gets some heat. That means the upstairs rooms have a "Sauna" mode if I run that heater. I already beat that problem to death in another post, still not pleased though.

The second issue is humidity control. It claimed it could control humidity. Well, it has a "dry" mode, and it does remove moisture. But it does so by running the air conditioner and condensing water on the coils. That also ends up cooling the space it's running in. Not only that but "Dry" and "Heat" are mutually exclusive, you can't run them both at once. So that means even faster cooling. It is also a colossal waste of energy to cool the space to dry it, then turn around and heat it up again.

The problem is that I live in Seattle. We don't have humid summers, we have humid winters. While many of you run gas heat and have to add a humidifier, I deal with RH of 80% at times when it rains for weeks on ends.

My current "solution" is a stand alone dehumidifier. It's noisy and only does part of the house. The one good thing is that the entire unit is indoors, so the heat this process generates also heats the room.

I'd like to explore options for the entire house. It appears that since I don't have ducts, there really are no good options. I know I can't do anything with the mini split system, it is what it is, but are there any good options for homes without ductwork?

Barring that, any suggestions on best/quietest stand alone dehumidifiers?


source https://hvac-talk.com/vbb/showthread.php?2222502-Whole-House-Dehumidifier-Without-Ducts&goto=newpost

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