Recent Topics
It's AMSOILŪ, not Amsoil
by Rat407
06/25/18 06:39 AM
VW Passat 2007
by madRiver
06/25/18 06:18 AM
Review: CVJ Remanufactured CV Axles
by The Critic
06/25/18 03:40 AM
Towing without 85w140?
by OilFilters
06/25/18 03:07 AM
2015 VW GTI autobahn oil questions
by Skyalbo
06/24/18 11:28 PM
Corrosion in the garage - salt or humidity?
by Kurtatron
06/24/18 11:13 PM
Darn dogs
by AZjeff
06/24/18 10:21 PM
New GC?
by Bullwinkle007
06/24/18 10:04 PM
The guy with the plexiglass head on you tube
by andyd
06/24/18 09:21 PM
'07 Pacifica Timing Belt Replacement success
by 92saturnsl2
06/24/18 09:10 PM
SAE 90 v 85/140
by Knuckle078
06/24/18 09:10 PM
Mobil 1 5W30-HM 5,011 mi, 1999 Ford Escort
by WA1DH
06/24/18 08:45 PM
Schaeffer's oil reviews on Amazon
by zfasts03
06/24/18 07:41 PM
Decent MP3 player
by Ed_T
06/24/18 07:08 PM
Letgo
by Donald
06/24/18 06:52 PM
Tire buying advice
by supton
06/24/18 06:23 PM
Two versions of M1 5w30 ESP now?
by Patman
06/24/18 06:21 PM
No older cars in New York State?
by Oldtom
06/24/18 06:19 PM
2009 Taurus strut mount noise
by terry274
06/24/18 04:38 PM
A3/B3 vs A3/B4, big difference or irrelevant?
by FordCapriDriver
06/24/18 03:36 PM
Newest Members
dhy808, ROD_Z, lozpxs, danthemanx07, FunktasticLucky
65319 Registered Users
Who's Online
97 registered (2004tdigls, 2002 Maxima SE, andyd, alcyon, 1foxracing, 15 invisible), 1404 Guests and 62 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65319 Members
67 Forums
285959 Topics
4772018 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4528519 - 09/28/17 02:44 PM Humidifier install on existing furnace
Brybo86 Offline


Registered: 10/08/11
Posts: 2950
Loc: Chicago, IL
I have an older furnace that i wired up to an ecobee4 thermostat.
I bought an aprilaire 500m
I'm not sure what is the best placement of the humidifier.
Supply stack is out of question too cramped.
I could cover over an old basement return which I believe is supposed to be a dehumidifier of sorts for basement in the summer.




Or it could go on the back and leave the old basement return open?
I think I can run a single wire from ecobee acc+ terminal to water solenoid on humidifier
Without needing to use the transformer or manual humidistat it came with


Edited by Brybo86 (09/28/17 02:54 PM)
_________________________
08 Honda Accord EX-L 2.4L M1 EP 0w20 145k
01 Kymco People 50
95 Lexus LS400 M1 AFE 0w30 193k
95 Yamaha Jog

Top
#4528589 - 09/28/17 04:23 PM Re: Humidifier install on existing furnace [Re: Brybo86]
TWG1572 Offline


Registered: 12/18/07
Posts: 558
Loc: Madison, Wisconsin
Ours is mounted on the supply side, but from what I understand the preferred side is the return. That way there is no chance a leak would go into the furnace. And it would be exhausting into negative pressure, vs. trying to blow into positive pressure on the supply side.

I just hooked an Ecobee4 up to ours. I used the two wire ACC + and - connections. The one wire method also works, but it will need to be internally powered.

Top
#4528667 - 09/28/17 06:00 PM Re: Humidifier install on existing furnace [Re: Brybo86]
SilverGt Offline


Registered: 08/01/16
Posts: 22
Loc: CentralPA
I've installed many humidifiers .You do "not" want it on the return. The moisture from the humidifier going across the heat exchanger of the furnace will cause it to prematurely rust through.
_________________________
1984 Ford Mustang GT Castrol GTX 10w-40
2017 Chevrolet Trax Castrol Edge 5W-30
2003 BMW 325xi. Castrol Edge 0w-40

Top
#4528673 - 09/28/17 06:02 PM Re: Humidifier install on existing furnace [Re: Brybo86]
SilverGt Offline


Registered: 08/01/16
Posts: 22
Loc: CentralPA
Rust soon turns into holes .Then allowing carbon monoxide into the airflow
_________________________
1984 Ford Mustang GT Castrol GTX 10w-40
2017 Chevrolet Trax Castrol Edge 5W-30
2003 BMW 325xi. Castrol Edge 0w-40

Top
#4528728 - 09/28/17 07:11 PM Re: Humidifier install on existing furnace [Re: Brybo86]
Kestas Offline



Registered: 06/04/02
Posts: 12343
Loc: The Motor City
Mine is mounted so it draws air from the warm side, across the humidifier, and feeds it to the return. It takes advantage of the pressure differential to enhance flow. This is the way I found it installed 32 years ago.

Top
#4528746 - 09/28/17 07:26 PM Re: Humidifier install on existing furnace [Re: Brybo86]
Brybo86 Offline


Registered: 10/08/11
Posts: 2950
Loc: Chicago, IL
Is the air immediately behind the humidifier panel more humid than the air 5ft away from it?

Humidifiers nowadays are evaporators they don't disperse droplets unless you go the steam route.

I have used the cool mist room humidifiers that blow air over a panel and if you put your hand in front of them they don't condense moisture on your hand.

I have seen old humidifiers mounted on horizontal ducts with a spinning rotor inside that caused some rust.

I'm planning on running a wire from the C furnace panel to the humidifier then the acc+ from ecobee

Did you jump C and acc - behind the thermostat or do you have a powered fan humidifier?



Does this look too close on the supply side, about 3.5 inches from exhaust duct


Edited by Brybo86 (09/28/17 07:38 PM)
_________________________
08 Honda Accord EX-L 2.4L M1 EP 0w20 145k
01 Kymco People 50
95 Lexus LS400 M1 AFE 0w30 193k
95 Yamaha Jog

Top
#4528772 - 09/28/17 07:48 PM Re: Humidifier install on existing furnace [Re: Brybo86]
JustinH Offline


Registered: 04/17/04
Posts: 5186
Loc: Texas
whats wrong with a free standing cool mist humidifier?

I use one for the mild texas winter and it does a good job.

Mine has no filter and works fine with standard water. I fill it with a couple gallons of bath tub water every night the furnace runs.
_________________________
'11 Hyundai Sonata GLS
'11 Scion XB

Top
#4528775 - 09/28/17 07:52 PM Re: Humidifier install on existing furnace [Re: Brybo86]
spk2000 Offline


Registered: 02/19/13
Posts: 989
Loc: Prospect, KY
I also want to install one but have heard mixed reviews about how well they actually work.
_________________________
96 Grand Marquis
01 Sable LS
02 Montero

Top
#4528780 - 09/28/17 07:57 PM Re: Humidifier install on existing furnace [Re: Brybo86]
Brybo86 Offline


Registered: 10/08/11
Posts: 2950
Loc: Chicago, IL
Last winter I ran a warm mist/stream unit that could barely keep a bedroom moist, Honeywell easycare
_________________________
08 Honda Accord EX-L 2.4L M1 EP 0w20 145k
01 Kymco People 50
95 Lexus LS400 M1 AFE 0w30 193k
95 Yamaha Jog

Top
#4530023 - 09/30/17 08:00 AM Re: Humidifier install on existing furnace [Re: Brybo86]
TWG1572 Offline


Registered: 12/18/07
Posts: 558
Loc: Madison, Wisconsin
Originally Posted By: Brybo86
Is the air immediately behind the humidifier panel more humid than the air 5ft away from it?

I'm planning on running a wire from the C furnace panel to the humidifier then the acc+ from ecobee

Did you jump C and acc - behind the thermostat or do you have a powered fan humidifier?


I'm guessing your Ecobee question might be directed at me? I have an Aprilaire 760, so it's a powered fan model. It's plugged into an outlet in the furnace room. I don't remember the details exactly, I just followed the included directions for a two wire install. We had an existing humidistat mounted near the thermostat already, so I just moved the wires over to the Ecobee.

The internet is full of debate over supply vs. return side. Sorta like Pennzoil vs Valvoline. I'm no pro, so won't jump in the argument. I'm pretty sure my humidifier would be more efficient on the return side - just because of the negative pressure differential, vs fighting the positive pressure on the supply side. And I don't think the air going into the heat exchanger would be moist enough to make any difference. It's a small amount of air blown through a pad, which is then mixed with a lot of incoming dry air. Just my 2 cents based on internet reading.

I'm excited to try to humidity programming on the Ecobee that varies humidity based on outside temp. That's something I've forgotten to do before when the temp dropped, and had the iced up windows to prove it. But overall, I really like the whole house humidifier. Hope you do too!



Edited by TWG1572 (09/30/17 08:08 AM)

Top
#4538586 - 10/09/17 10:57 PM Re: Humidifier install on existing furnace [Re: Brybo86]
Brybo86 Offline


Registered: 10/08/11
Posts: 2950
Loc: Chicago, IL


Got it all hooked up!
_________________________
08 Honda Accord EX-L 2.4L M1 EP 0w20 145k
01 Kymco People 50
95 Lexus LS400 M1 AFE 0w30 193k
95 Yamaha Jog

Top