Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Appliances

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-13-2014, 04:22 PM   #16
Retired from the grind
 
gregzoll's Avatar
 
Join Date: Dec 2006
Location: Midwest - Central Illinois
Posts: 13,853
Share |
Default

dehumidifier in basements


If at 40%, that is good, but a little too low. Should be really around 50-52%. Too dry you start getting Static Electricity.

__________________
Ren: Now listen, Cadet. I've got a job for you. See this button? Ren: Don't touch it! It's the History Eraser button, you fool! Stimpy: So what'll happen? Ren: That's just it. We don't know. Maybe something bad, maybe something good. I guess we'll never know, 'cause you're going to guard it. You won't touch it, will you?
gregzoll is online now   Reply With Quote
Old 04-13-2014, 04:38 PM   #17
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,509
Default

dehumidifier in basements


Quote:
Originally Posted by Amitabh View Post
the furnace vents outside via a PVC pipe. The humidity right now is 40%rh. But the basement is yet to be finished. I am thinking about the future, placement of grates (for intake and outtake) and finally level of humidity.

What i did notice in my basement (and going off topic), is that i only have one return opening in the entire unfinished basement and thats not even in the middle of the room, its off to one side.

I wonder if i installed at least 1 more intake - i think that should improve air movement and perhaps reduce humidity?

I will definitely install grates in the furnace room, just so air moves in that room
Does it also get its combustion air from outside via a PVC pipe? Do you have a gas fired water heater in the same room, if so where does it get its combustion air from.

installing another return could put the room into a negative pressure and increase humidity if it has to pull in outside air.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is online now   Reply With Quote
Old 04-13-2014, 04:57 PM   #18
Member
 
Join Date: Nov 2012
Location: Toronto, Canada
Posts: 262
Default

dehumidifier in basements


Quote:
Originally Posted by beenthere View Post
Does it also get its combustion air from outside via a PVC pipe? Do you have a gas fired water heater in the same room, if so where does it get its combustion air from.

installing another return could put the room into a negative pressure and increase humidity if it has to pull in outside air.
hey - started a thread in HVAC now - dont want to hijack my own thread

but to answer your question

combustion air is from outside for both Furnace and Water tank.
Amitabh is offline   Reply With Quote
Old 04-13-2014, 05:44 PM   #19
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,509
Default

dehumidifier in basements


If they draw air in from the outside. then putting a dehumidifier in the furnace room and installing connecting vent to the other room/rooms, it will defeat the purpose of the dehumidifier.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is online now   Reply With Quote
Old 04-13-2014, 08:54 PM   #20
Member
 
Join Date: Nov 2013
Location: Winnipeg, Canada
Posts: 506
Default

dehumidifier in basements


Quote:
Originally Posted by beenthere View Post
If they draw air in from the outside. then putting a dehumidifier in the furnace room and installing connecting vent to the other room/rooms, it will defeat the purpose of the dehumidifier.
My dehumidifier is in the furnace room, but its intake vent has been extended to the main room. So, the Dehumidifier is taking air from the main room, and delivering back to the main room (minus the water of course).
The machine is in the furnace room merely to cut down on the noise, which you can still hear... just not nearly as loud. It's also easier for me to run the drain hose there since the main stack is right beside the furnace.
Bob Sanders is online now   Reply With Quote
Old 04-13-2014, 09:28 PM   #21
Member
 
cj133's Avatar
 
Join Date: May 2011
Location: N.J.
Posts: 284
Default

dehumidifier in basements


Quote:
Originally Posted by Bob Sanders View Post
My dehumidifier is in the furnace room, but its intake vent has been extended to the main room. So, the Dehumidifier is taking air from the main room, and delivering back to the main room (minus the water of course).
The machine is in the furnace room merely to cut down on the noise, which you can still hear... just not nearly as loud. It's also easier for me to run the drain hose there since the main stack is right beside the furnace.
Bob,

What did you do for a trap? I had looked for a solution for this years ago and all I could find was doing a basic standpipe for a cloths washer which seemed a bit much. I ended up using a little giant condensate pump that pumps it into my backyard.
cj133 is offline   Reply With Quote
Old 04-14-2014, 04:04 AM   #22
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,509
Default

dehumidifier in basements


Quote:
Originally Posted by Bob Sanders View Post
My dehumidifier is in the furnace room, but its intake vent has been extended to the main room. So, the Dehumidifier is taking air from the main room, and delivering back to the main room (minus the water of course).
The machine is in the furnace room merely to cut down on the noise, which you can still hear... just not nearly as loud. It's also easier for me to run the drain hose there since the main stack is right beside the furnace.
As long as the connecting vent is not communicating to the furnace room also, that works.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is online now   Reply With Quote
Old 04-14-2014, 05:40 AM   #23
Member
 
creeper's Avatar
 
Join Date: Mar 2011
Location: As always..beside myself.
Posts: 4,226
Default

dehumidifier in basements


a tidbit...keeping the furnace fan running in the off season helps keep the basement air circulating plus it sucks all the cool basement air into the upper living space. You will need to turn on the a/c less often.
creeper is offline   Reply With Quote
Old 04-15-2014, 05:42 AM   #24
Member
 
Join Date: Nov 2013
Location: Winnipeg, Canada
Posts: 506
Default

dehumidifier in basements


Quote:
Originally Posted by cj133 View Post
Bob,

What did you do for a trap? I had looked for a solution for this years ago and all I could find was doing a basic standpipe for a cloths washer which seemed a bit much. I ended up using a little giant condensate pump that pumps it into my backyard.
My dehumidifier has been placed on a shelf about 4 feet up so that it can drain into the stack with straight gravity. A simple U bend was placed in the hose which forms a sort of P trap. It works fine.
Bob Sanders is online now   Reply With Quote
Old 04-15-2014, 05:50 AM   #25
Member
 
Join Date: Nov 2013
Location: Winnipeg, Canada
Posts: 506
Default

dehumidifier in basements


Quote:
Originally Posted by creeper View Post
a tidbit...keeping the furnace fan running in the off season helps keep the basement air circulating plus it sucks all the cool basement air into the upper living space. You will need to turn on the a/c less often.
You should keep it running pretty much all the time anyway. There is a concern in basements over Radon gas, particularly in our part of the world.

Still, even with the blower on there is that cool, basement feel to the air as you go down. Dehumidifiers kill that issue completely. It feels like a true extension to the house. The air is warm and dry and welcoming.
Bob Sanders is online now   Reply With Quote
Old 04-15-2014, 10:54 AM   #26
Member
 
Join Date: Jan 2007
Location: Des Moines, IA
Posts: 1,078
Default

dehumidifier in basements


Quote:
Originally Posted by Bob Sanders View Post
You should keep it running pretty much all the time anyway. There is a concern in basements over Radon gas, particularly in our part of the world.

Still, even with the blower on there is that cool, basement feel to the air as you go down. Dehumidifiers kill that issue completely. It feels like a true extension to the house. The air is warm and dry and welcoming.
I've heard from HVAC guys that running your furnace fan year round will kill your furnace in no time at all. I'd contact a professional HVAC person to confirm whether or not running the fan is a good option.
cibula11 is offline   Reply With Quote
Old 04-15-2014, 11:45 AM   #27
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,509
Default

dehumidifier in basements


Quote:
Originally Posted by cibula11 View Post
I've heard from HVAC guys that running your furnace fan year round will kill your furnace in no time at all. I'd contact a professional HVAC person to confirm whether or not running the fan is a good option.
Won't kill the furnace.

It does however tend to raise the humidity in the house in the summer as it will re-evaporate some of the water of of the cooling coil(evaporator).

If a basement has a radon problem, but no radon removal system. Then the duct system should be sealed from the basement.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is online now   Reply With Quote
Old 04-15-2014, 03:38 PM   #28
Member
 
Join Date: Nov 2013
Location: Winnipeg, Canada
Posts: 506
Default

dehumidifier in basements


Quote:
Originally Posted by cibula11 View Post
I've heard from HVAC guys that running your furnace fan year round will kill your furnace in no time at all. I'd contact a professional HVAC person to confirm whether or not running the fan is a good option.
I have to replace my blower motor about every three years. Last one I stuck in cost something like $68 plus tax.


Last edited by Bob Sanders; 04-15-2014 at 03:49 PM.
Bob Sanders is online now   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dehumidifier Amitabh HVAC 1 07-24-2013 07:56 AM
Help with dehumidifier location!! (weep holes?) ryanatw General DIY Discussions 1 04-20-2013 11:47 AM
My dehumidifier just died and I need a new one strategery HVAC 3 04-12-2013 04:14 PM
Whole-house dehumidifier installation? mahohmei HVAC 0 11-26-2012 08:42 AM
Consumer Dehumidifier for 1000 sq ft encapsulated crawlspace? chazman113 HVAC 4 08-11-2011 08:57 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.