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re: Dehumidifier question
Posted on 7/9/20 at 4:00 pm to baldona
Posted on 7/9/20 at 4:00 pm to baldona
did think about that. Hopefully it's not an issue, because like I said the laundry room door will remain open
ETA: ONe thing just dawned on me...the air intake for my HVAC is right outside my laundry room, which leads to my garage thus making it the most humid place in my house. Really hoping that has something to do with it and putting a dehumidifier there fixes it.
ETA: ONe thing just dawned on me...the air intake for my HVAC is right outside my laundry room, which leads to my garage thus making it the most humid place in my house. Really hoping that has something to do with it and putting a dehumidifier there fixes it.
This post was edited on 7/9/20 at 4:10 pm
2
Posted on 7/9/20 at 4:29 pm to scott8811
quote:
ONe thing just dawned on me...the air intake for my HVAC is right outside my laundry room, which leads to my garage thus making it the most humid place in my house. Really hoping that has something to do with it and putting a dehumidifier there fixes it.
That’s certainly possible, and the cost of a portable dehumidifier will likely be not any more expensive, than a HVAC service call, and if I was in your shoes I’d purchase one to try to get some quick relief on the humidity issue. But at an appropriate time I’d have your HVAC system checked as it should be doing a much better job of maintaining a comfortable humidity.
Posted on 7/9/20 at 4:38 pm to CrawDude
54% in my office at 75 degrees. Going to move the humidity sensor around. House definitely feels sticky at higher temps
Posted on 7/9/20 at 5:05 pm to CAD703X
quote:
54% in my office at 75 degrees. Going to move the humidity sensor around. House definitely feels sticky at higher temps
I find I really notice the sticky feeling of high humidity around 56-58%.
My intent is to install a whole house dehumidifier when I replace my 15 year old HVAC to handle humidity during those times of the year when temps are cool so AC doesn’t run remove humidity but outdoor humidity is still uncomfortably high. But I might consider doing this sooner as, knock on wood, my HVAC seems to still operating fine. Interestingly, from what I gather, whole house dehumidifiers are not that common in the Deep South.
Posted on 7/9/20 at 8:22 pm to CrawDude
After researching I also have my eye on a whole house dehumidifier long term
Posted on 7/9/20 at 9:40 pm to CrawDude
I put one in our 1960s ranch I think it was 4 years ago now. I was replacing an el cheapo old school A/C and for 1500 extra the hvac installed it at the same time. We experimented with the small pump hisense brand unit from Lowe’s and loved the results prior to the install.
Posted on 7/10/20 at 9:30 am to CAD703X
UPDATE: Got it in and turned on yesterday at about 5:00.. when I did humidity was reading at 66% on my ecobee, and 55% on the unit. By 9:00 ish the unit was reading 45 and ecobee was reading low 50's.... it's not huge but I could notice a difference in comfort. I didn't feel like I was suffocating as much when the AC kicked off. Will be interested to see how it goes as it keeps running...I have really high ceilings and my living room is a giant cased opening from my kitchen which also has high ceilings so it's a lot of air to dry out.
Posted on 7/10/20 at 3:13 pm to scott8811
If you want a whole house dehumidifier as part of the central system, go to HVAC-TALK and search the residential section. Lots of discussions
Posted on 7/10/20 at 3:31 pm to scott8811
Can you inspect your ductwork at all? You mentioned the returns go out to the garage. It really sounds like you might have some very leaky ductwork pulling outside air in.
You are sorta putting a bandaid on a bullet wound. If you can fix the source instead of treating the symptoms, it will likely save you several hundred $ on your electric bills over the years. It might be something that can be fixed in 5 minutes with some duct tape.
You are sorta putting a bandaid on a bullet wound. If you can fix the source instead of treating the symptoms, it will likely save you several hundred $ on your electric bills over the years. It might be something that can be fixed in 5 minutes with some duct tape.
Posted on 7/11/20 at 1:19 am to notsince98
The return is actually in the hallway between the laundry and living room. The laundry room leads to the garage. That being said, point taken... I'll try and make a point to get in the attic and see how much I can see.... thanks
Posted on 7/23/20 at 11:31 pm to scott8811
(no message)
This post was edited on 7/24/20 at 9:09 am
Posted on 7/23/20 at 11:39 pm to scott8811
I have been reading Tigerdroppings for a long time, but just joined a few days ago.
Scott.... there have been several good posters with good information about your humidity problem. I am by far NOT an expert but I really believe the statement of "Putting a band aid on a bullet wound" applies to your situation. IMO... if your A/C was working properly, you would not have high humidity. I have a few thoughts on potential "causes" but first lets get some more information and hopefully lower your electric bill.
To help figure out why you have very high humidity with just the A/C running, I need a little more background.
1) Has this always been a problem in this house?
2) Has there been any construction changes to the house, such as adding a room.
3) Was the air conditioner changed out for a different unit. How old is the current unit.
4) What tonnage is your A/C. I believe you said house is about 1500 sq ft.
5) How old is your house and how well is it insulated. Is there air leakage around doors or windows. How many children are in the house [do they go in and out a lot. Leave the door open.]
6) Are all the rooms about the same temperature or are 1 or 2 rooms noticeably different.
Scott.... there have been several good posters with good information about your humidity problem. I am by far NOT an expert but I really believe the statement of "Putting a band aid on a bullet wound" applies to your situation. IMO... if your A/C was working properly, you would not have high humidity. I have a few thoughts on potential "causes" but first lets get some more information and hopefully lower your electric bill.
To help figure out why you have very high humidity with just the A/C running, I need a little more background.
1) Has this always been a problem in this house?
2) Has there been any construction changes to the house, such as adding a room.
3) Was the air conditioner changed out for a different unit. How old is the current unit.
4) What tonnage is your A/C. I believe you said house is about 1500 sq ft.
5) How old is your house and how well is it insulated. Is there air leakage around doors or windows. How many children are in the house [do they go in and out a lot. Leave the door open.]
6) Are all the rooms about the same temperature or are 1 or 2 rooms noticeably different.
Posted on 7/24/20 at 6:10 am to scott8811
quote:
ONe thing just dawned on me...the air intake for my HVAC is right outside my laundry room, which leads to my garage thus making it the most humid place in my house. Really hoping that has something to do with it and putting a dehumidifier there fixes it
Honestly that’s probably the best place for a portable dehumidifier then. It will take out some of the humidity of your most humid area, prior to going into the intake. It will heat up the area a couple degrees, so you may want to raise the temperature in the house especially if your thermostat is in that area.
Leaky houses and tight houses can both suffer from high humidity, just from cooking and showering, but can be made worse by oversized units and other variables. It’s a lot harder to dial in a perfect system on an existing house without starting with all new stuff. There are a number of ways to achieve lower humidity in the house, it’s true dehumidifiers are a bandaid, whole home being the best option but portable being effective a couple months out of the year.
Posted on 7/24/20 at 7:02 am to Citica8
quote:
Honestly that’s probably the best place for a portable dehumidifier then. It will take out some of the humidity of your most humid area, prior to going into the intake
The best place would be injection in the plenum downstream of the coil. If using a portable unit, I'd put it as far away from the return air as possible. This way you're not adding warm dry air into the return air, and can take advantage of the evaporator coil for primary dehumidification. The portable unit should just be supplemental. The AC blower and thermodynamics will balance the humidity in the rest of the home (unless you're very leaky)
Posted on 7/24/20 at 7:28 am to cajuns td
quote:The problem with that is it’s currently not taking care of the dehumidification. I agree on the best spot for whole home, but no one is going to duct a portable dehumidifier into the plenum.
and can take advantage of the evaporator coil for primary dehumidification
Having it there also will increase the temp, but only a few degrees, causing the unit to run longer, which will then allow the evaporator coil to remove more humidity. The added bonus of having it there is it’s his most convenient area to have it drain.
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