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Old 01-05-2011, 07:40 PM   #1
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Humidifier old house


My house is 107 years old. I'm wanting to add a whole house humidifier . Is there any problems with that? You know old houses aren't air tight.

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Old 01-05-2011, 07:50 PM   #2
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no. you can add a humidifier, it may take a larger humidifier to perform the way you want though, but you CAN add one.

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Old 01-05-2011, 09:43 PM   #3
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Do you have any recommendations on what kind? Have read the drum ones take the most maintence.
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Old 01-05-2011, 09:48 PM   #4
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a flow thru design is the best IMO. I use Aprilaire.
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Old 01-06-2011, 05:41 AM   #5
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Before installing a humidifier. You might want to seal up the house better first. This will pay back quickly in savings on both heating and cooling cost. Along with decreasing the amount of moisture that has to be added to your home in the winter.

The Aprilaire 600A is a good choice for a humidifier. But depending on the size of your house, and how leaky it is. May not be large enough.
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Old 01-06-2011, 01:35 PM   #6
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My is probably a little over 2000 sq ft. Working on insulating right now. House has no insulation in walls. Attic has some now since I put it up there a few years ago. Doing a kitchen remodel so tore down plaster on exterior walls to insulate. The rest of the house im going to cut holes in the walls and use blow in.
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Old 01-06-2011, 04:50 PM   #7
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Insulation doesn't prevent air infiltration.

You need to seal the air leaks.
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Old 01-07-2011, 12:21 AM   #8
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If I had it to do over I would get the honeywell steam humidifier. Much easier to install than the Aprilaire but more expensive unit.
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Old 01-07-2011, 02:47 AM   #9
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Quote:
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If I had it to do over I would get the honeywell steam humidifier. Much easier to install than the Aprilaire but more expensive unit.
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Old 01-07-2011, 04:17 AM   #10
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If I had it to do over I would get the honeywell steam humidifier. Much easier to install than the Aprilaire but more expensive unit.
More expensive to buy, and cost more to use then the Aprilaire(water, they also make steamers) humidifiers.

An Aprilaire 600 connected to the hot water line can match, and exceed a Honeywell Truesteam 12 GPD.
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Old 01-07-2011, 10:10 AM   #11
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Ya I know the insulation wont stop air leaks. But I need something in there. That damn plaster gets so cold.
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Old 01-13-2011, 11:29 AM   #12
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More expensive to buy, and cost more to use then the Aprilaire(water, they also make steamers) humidifiers.

An Aprilaire 600 connected to the hot water line can match, and exceed a Honeywell Truesteam 12 GPD.

I'm in the process of installing my Aprilaire 700 now. I was able to get access to hot water. I'm still working on the drain. My unit is in the attic so I'm worried about a leak. I hope it works as well as you say.

I discovered the Honeywell after I had purchased the Aprilaire. I liked the Honeywell design because you can mount the unit anywhere then have the steam line inject steam into the plenum. Instead of mounting the unit direclty to duct work. My plenum is duct board so I'll have to support the unit somehow. I also have leaks through the unit that I can't seem to 100% eliminate. May be more expensive to run because of the heater.
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Old 01-13-2011, 12:30 PM   #13
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Dont put a humidifier in the attic! Especially if your attic has temps below freezing!!!!!!!!!!!!!!!!!!!!!!!!!!
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Old 01-13-2011, 12:36 PM   #14
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not sure I'd put one in the attic either,
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Old 01-13-2011, 03:57 PM   #15
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Not much choice. That is where the furnace is located. I'm in Texas so freezing is pretty rare. I'm installing a condenaste pan under the unit and it will have a float to turn off system in case of overflow. I may add an alarm.


I've tried running humidifiers in the house but they can't keep it comfortable. We only run the heat for 2-3 months and 25 is a very low temp. I'm going to use hot water so that should also eliminate the any freezing issues. I'm just tired of feeling cold at 72F.

I installed a 95% furnace last year which has a condensate drain to outside. I'm a bit concerned about it freezing also. I'm moving that to an interior drain with the humidifier.

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