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Old 03-14-2014, 06:43 PM   #1
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Stand alone Humidifer system with Duct?


Hello,
We'd like to improve the humidification of our house, the humidity is in the 20% range throughout this winter and just too dry. The sticking point is that we have a radiant boiler for heat (cast iron radiators) and an air conditioning system which is in the attic. I have been doing a TON of air sealing in this house (build in 1950) and going to do blown in cellulose in a month's time when I'm done with the attic. Realistically I don't want to use the a/c system for humidification because there is no water up there and it's cold (and turned off) in the winter. It would be feasible to run a small duct system in the basement (not yet finished) and into the 3 bedrooms and the living room from a central location with water and power. I could fit a 6" duct in the chase that I have to make, but not much larger. Is it feasible to run a humidifier with a fan that kicks on with a humidistat? Basically at the start of the line would be a blower or fan inside a square duct, humidifier above and then trunk off to the 4 locations. The run would be less than 30 feet to the 4 locations I'm thinking, and I could use metal (not flex duct), but there wouldn't be a furnace to dry out the duct. I could even just run a single line up into the large living room if the humidity would spread out.

The whole point is to get humidification in the entire house, instead of room by room humidifiers which we have to refill. We have pretty hard water so steam would be out of the question. I don't have a problem with maintenance of pads etc... as long as it's just 1 humidifier instead of 4.

Has anyone ever seen something like this before? Any other ideas? Thanks

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Old 03-15-2014, 06:25 AM   #2
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Stand alone Humidifer system with Duct?


Aprilaire 350 or 360 may be suitable for your home.

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Old 03-15-2014, 09:26 PM   #3
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Stand alone Humidifer system with Duct?


Great, those look like exactly what I am looking for, thanks! I'll see if I can't get the wife to find a spot with a drain for that. Wish we had thought about this before we put the walls up in the bathroom, would have made a good time to plumb it up.

Do you think running a humidifier in the basement would adequately humidify a main floor? It's roughly a 2000 square foot ranch with roughly the same sized basement. It's wood floors throughout, and the subfloor of the wood is just a second layer of board, so it's very porous. Otherwise would need to do some reworking to get a drain in.
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Old 03-16-2014, 05:09 AM   #4
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Stand alone Humidifer system with Duct?


You would have to have the basement humidity at 70% to get the main floor humidity up.

If you check, you'll probably find that your basement humidity is already a lot higher then your main floor is.
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Old 03-17-2014, 05:39 PM   #5
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Stand alone Humidifer system with Duct?


I couldnt install a humidifier on my unit, as its on the roof but I installed it in the laundry room and tied it into the duct system. I considered a seperate unit but wanted something that would be part of the system we already had.

You could also go with the Honeywell steam unit mounted in the house, then all you would need is a small hose that would run between that and the unit in the attic.
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Old 03-17-2014, 06:07 PM   #6
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Stand alone Humidifer system with Duct?


Quote:
Originally Posted by sammy37 View Post
I couldnt install a humidifier on my unit, as its on the roof but I installed it in the laundry room and tied it into the duct system. I considered a seperate unit but wanted something that would be part of the system we already had.

You could also go with the Honeywell steam unit mounted in the house, then all you would need is a small hose that would run between that and the unit in the attic.

His unit in the attic, is an air conditioner. it would be blowing out cold air in the winter, if he did that. Plus the moisture would probably condense in the cold duct work.
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Old 03-18-2014, 12:36 PM   #7
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Stand alone Humidifer system with Duct?


Quote:
Originally Posted by beenthere View Post
His unit in the attic, is an air conditioner. it would be blowing out cold air in the winter, if he did that. Plus the moisture would probably condense in the cold duct work.
I didnt read the original post all the way, I see that now.

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