Questions tagged [humidifier]

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21 views

Can someone verify my wiring for Trane XE90 with Aprilair 600

I received my unit this morning and there was a diagram that says its better to wire the humidifier to the EAC, this way I run run the humidifier without running heat, which makes sense. Unit also ...
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3answers
60 views

Why place humidifer on cold air return

I'm trying to understand why a whole house humidifier is placed on the cold air return where water is injected into the air flow and then it has to pass through a five inch filter before entering ...
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13 views

How to insert a panel in a tray to avoid touching edge and leaking: Aprilaire 600M humidifier?

When the panel was leaning against the tray, water leaked onto the tray edge (and then the floor) - see How to troubleshoot a leak in an Aprilaire humidifier? or the first photo below. When I put in a ...
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1answer
43 views

How to troubleshoot a leak in an Aprilaire humidifier?

An Aprilaire 600M humidifier attached to my HVAC vent is leaking very slowly, about 2 ounces per day. I have not seen it leak but the leak is coming out near the exhaust at the bottom of the plastic ...
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65 views

Humidifier not keeping up with HRV

I just moved to an new (for us) house and we seem to not be able to keep the humidity up in the house. The house comes with a Heat Recovery Ventilator (HRV) that in the winter runs all the time on low ...
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24 views

Should I expect a whole-home humidifier to provide consistent humidity throughout a 3-story townhouse?

I'm looking to install a whole-home humidifier in my 3-story townhouse in northern Virginia. I already have trouble keeping a consistent temperature throughout the 3 stories - should I expect similar ...
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1answer
38 views

Piping humidified air through a wall

I have very low humidity in an upstairs bedroom. For various reasons I cannot keep the door closed, so your average "single room" humidifier doesn't move the needle. It's a cold climate, so ...
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1answer
48 views

What skills and tools do I need to install a whole-home humidifier?

I'm looking to install a whole-home humidifier and am wondering what tools and skills are needed for the job. I'm specifically concerned about a non-standard installation or if something goes wrong / ...
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1answer
25 views

Winter damper setting for humidifiers

Problem: My brother has a drum humidifier on his furnace and is quite satisfied with it, so I installed one on my furnace this fall. He claims it is a good idea to partially close the damper for ...
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2answers
38 views

Is this the correct wiring for Honeywell humidifier?

Additional Info: Make/Model of furnace: Bryant / 310AAV042090 Link to Installation Instructions: https://www.carrierenterprise.com/bryant-legacy-80-afue-90-000-btuh-multipoise-gas-furnace-310aav042090#...
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2answers
49 views

Humidifier and preventing ice formation

Is there anything that can be done to mitigate the effects of a floor humidifer on ice formation gumming up various systems in the house? I have learned that even RO water is not pure enough to ...
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0answers
33 views

Air purifier/humidifier - strange yellow substance

I have had this Sharp air purifier/humidifier for the past 6 months. After cleaning the humidifying filter today I have noticed a strange yellow slimy substance on the filter "fins". I have ...
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1answer
72 views

Should whole house humidifier leak cold air in the summer?

I've recently been learning a lot about sealing our HVAC ducts to improve system efficiency. On my mission to seal every accessible leak, I noticed my air conditioning/furnace cabinet joints were ...
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1answer
47 views

Thermo Pride OL5-85 oil furnace and Aprilaire 60 humidistat

I have a Thermopride OL5-85 furnace. I've recently added an Aprilaire 600 humidifier, which comes with the Aprilaire 60 humidistat. Wiring diagrams for both are attached below. The humidistat is ...
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73 views

Why do I read no voltage with my humidistat's solenoid is installed?

I've been troubleshooting my humidifier for a bit now (just learning this stuff as I go). It would appear the wiring for the furnace (apparently the transformer) meets the wiring for the humidistat ...
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37 views

2 humidistats for 1 humidifier

I have two zones in my house with a damper system and want to move away from using my humidistat to control the solonoid valve on my humidifier and instead use my Nest thermostats. My zone control ...
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99 views

Aprilaire 700 Humidifier: No power leaving Humidistat

I recently purchased and installed an Aprilaire 700 humidifier. I’m able to read 24V on the R and C wires at the humidistat, but I’m not able to read any voltage leaving the humidistat to the ...
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1answer
297 views

Where should my humidistat on my whole house humidifier be located

I have a Trion cm200 installed on my air handler up in the attic of my house. Toward the end of 2018 I had an entire electric system installed in my house (duct work, air handler and outside ...
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1answer
69 views

Should whole house humidifier be draining when heater/fan is off?

I have an Aprilaire 700 whole house humidifier with a manual mode humidistat on the return. I noticed that the unit was draining water even when the heater/fan was off. Is this expected? I just hear ...
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1answer
79 views

Furnace shutoff switch outlet only hot when furnace is running

I have an old Aprilaire 700 powered by the 110v outlet on the side of my furnace. I recently replaced the old humidistat with a newer Aprilaire 60 Digital. This humidistat comes with the blower ...
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1answer
263 views

Aprilaire 600: No power coming out of humidistat

I am trying to trouble shoot my Aprilaire 600. It was already installed when we purchased the house 3 years ago but I don't believe we ever turned it on after purchasing the house in the summer. The ...
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1answer
50 views

What is the name of this water source for a whole house humidifier?

A plumber told me that the type of water feed I have tends to leak. I've owned the house for 10 years and it has never leaked, but I would like to think about upgrading. I plan to search the web for ...
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2answers
68 views

How should I know if my humidifier work?

I have a Aprilaire 600 Humidifier installed in my basement, as per the manual it should automatically kick off when the lack of humidity is detected. It didn't seem happening. After I adjusted the ...
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435 views

My humidifier sets off the breaker?

I live in an apartment with a flatmate, in Ontario, Canada. I have a Honeywell Warm Mist Top Fill Humidifier (HWM-340BC from Canadian Tire, I imagine it should be akin to HWM-340B here: https://www....
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1answer
130 views

April Aire 600 powers off while furnace is firing

After having a new furnace and AC installed in the summer of 2018, replacing my 20-year old equipment, the existing AprilAire 600 whole-house humidifier behaves differently than before. During the ...
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2answers
863 views

Would adding ice to a ultrasonic humidifier help cooling in summer?

During summer it's way too hot for me to sleep well. I currently use a fan, but it's so hot that it's not enough. I had the idea of having a sonic humidifier in front of the fan as the fan would ...
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4answers
337 views

How can I prevent a humidifier from getting moldy?

I have a small cool mist humidifier. It has a water tank and ejects a mist and does not have a filter or anything. It is "TaoTronics" brand in case anyone wants to find it. I've noticed pink streaks ...
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4answers
2k views

Water is pouring out of our Aprilaire humidifier

We had an Aprilaire humidifier (600 model) installed in a new house 2.9 years ago. About a year ago, the humidifier began leaking water all over the basement floor. This has happened 3 times with 3 ...
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2answers
241 views

How to calculate CFM/pressure needed to move water vapor through duct?

I made a cheap, high capacity humidifier from a mist maker, storage crate, and 120mm fan (the fan blows into the crate, which pushes the mist out). This 4" flex pipe works fine to exhaust the mist ...
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3answers
232 views

Is it wrong to install both a whole house humidifier and a whole house de-humidifier?

I live nearish Pittsburgh. Our summers can get pretty hot and humid and our winters can get pretty cold. We have been planning to get a whole house humidifier because the house gets really dry in ...
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2answers
283 views

How much cooling is my mist maker humidifier causing?

Closely related to Does a humidifier cool the air? but with a different kind of humidifier, and I'd like to know exact numbers. First question: for the same production volume of vapor, does an ...
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2answers
120 views

How can I wire the Humistat and Humidifier so that Humudifier runs only during heat cycle?

I have Honeywell Humidifier HE225A, Honeywell Thermostat TH6110D and Honeywell Humidistat H8908B all installed already. Now my Humidifier runs 24/7 wasting water because it is connected with the ...
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1answer
22 views

How to electrically hook up my humidifier to my furnace and have it run when furnace is running and not A/C in summer

How do I hook up my humidifier to my furnace so it only runs when furnace heats my house. Just want to make sure it does not turn on when A/C in summer goes on. The person who installed my furnace ...
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1answer
666 views

How to wire humidifier to furnace

I have a Goodman high efficient furnace with a carrier humidifier attached to the back. The humidifier wasn't working because the solenoid coil was burned, so I replaced it with a new solenoid. The ...
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0answers
93 views

Can I provide low-voltage power for an HVAC humidifier from a standard outlet?

I recently bought an Aprilaire humidifier to replace an old one that came with the house, which I thought was broken. After connecting the water (which does work and isn't clogged) and the wiring to ...
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37 views

CO, USA - Code Violation for Switch or Subpanel to Power AC & Humidifier?

My mechanical closet is on the third floor of our townhouse and our breaker panel is on the first. To install a steam humidifier, I’ll have to run a 220 line between two floors or outside, both of ...
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1answer
235 views

Whole house humidifier when furnace is in unconditioned space

I have 2 furnaces, one in the garage and one in the attic. These are both spaces with unconditioned air, so they get very cold in the winter. The contractor who helped me configure my garage furnace ...
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1answer
111 views

Do I need a whole-house humidifier in Victoria BC with radiant floor heating?

We are building a new 4000sf home in Victoria BC. Heating will be in-floor radiant (no ducting). The floors are mostly hardwood with tile in a few areas. The year-round average humidity here varies ...
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2answers
182 views

Is my whole-house humidifier installed and working as expected?

I have a Honeywell whole house humidifier model HE240. Its installed on the warm air supply. I thought this would put the humid air into the warm air stream. Instead its blowing air to the cold air ...
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2answers
330 views

Electrical Connection AprilAire 600M Bypass Humidifier

I have a 2-stage furnace and I want to connect the 24VAC from the humidifier to the thermostat connections on the control board. Since the control board has W1 and W2 connectors, which one should I ...
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1answer
188 views

What is the purpose of this PCB next to air pressure switch? Do I need it?

I recently noticed the whole house humidifier (installed by the previous owner) stopped working (Honeywell 280A). Filter dry, no flow, no click from the solonoid valve. I did some investigation and ...
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1answer
633 views

Material for water feed line on furnace humidifier. Latex required?

The water feed line on my furnace humidifier that connects to the pad started leaking, so I need to replace it. The original was made latex 1/4" OD tubing, but the store doesn't have that size and ...
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0answers
2k views

Difference Between Take Off and Starting Collar - Which One Should I Use?

I am in the process of installing a whole house humidifier. I am planning to mount it to the supply side and need to connect the bypass to the return. I'm not sure if I should be using a take-off or ...
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1answer
23 views

removing humifier control

have a new furnace for several yrs. now and i no longer have a humidifier. finally getting around to removing humidifier controller. Question: there are 2 wires, 1 red, 1 white, attached to the ...
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0answers
45 views

Carrier humidifier hookup

I had a blower replaced. In doing so, the technician pulled the wiring for the humidifier. The image shows the black wire is in place, the white wire not showing in the image is not wired in. Where ...
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3answers
283 views

Wiring for humidifier to Goodman gmpn080-4 furnace

I have a Goodman gmpn080-4 furnace and am installing a Skuttle 190-1 humidifier. Where do I wire the two wires from the humidistat to the furnace? I see a 24v HUM screw on the board, but not sure ...
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1answer
31 views

Humidity setting for vacant house

What should the humidity be set at a vacant house in Minnesota January through May
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3answers
309 views

Should the solenoid to a Furnace Humidifier be intermittent?

This should be a simple yes or no question but I can't determine it myself. I have an AprilAire 550 Humidifier built into the ducting from my furnace. It appears that the humidifier isn't working due ...
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1answer
382 views

How to change inline water filter on whole home humidifier system?

We have a whole home humidifier as part of the furnace system, but have never really used it since we bought the house. I'd like to get it up and running and am trying to figure out some update ...
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1answer
531 views

Water pad for humidifier-can I buy larger and cut it to the size of my humidifier?

I have a Hunter CareFree Plus (quite old-the thermostat has a analog control -no digital dispaly) and I wanted to start reusing it. It has been in a storage for a while, the filter is quite clogged. ...