Go Back   InterNACHI Inspection Forum > >

Notices

General Inspection Discussion This is a place for general discussion about the home inspection industry. Try to keep the posts topical, but they need not be as specific as the other areas of this board.

Reply
 
Thread Tools
  #1  
Old 7/11/18, 9:31 PM
Joshua LeBeau's Avatar
Joshua LeBeau Joshua LeBeau is offline
Certified Professional Inspector (CPI) ®
 
Join Date: Oct 2017
Location: Rhode Island
Posts: 56
Default Basement Air Intake

Four inch PVC pipe coming into the basement of the house attached to a fan.
Fan is drawing in air from the outside only when the oil fired hot water baseboard system is run.

The vertical insulated portion stops about 18" from the floor and it is anchored to the floor.

Has anyone seen this before and the purpose of it.

Why on a freezing cold day would you run the boiler and draw cold air into the basement?

Thanks in advance!
Attached Thumbnails
Basement Air Intake-2018-6-11-53-jpg  




Joshua & Michelle LeBeau
www.HomeInspectionsbyJML.com

Last edited by jlebeau2; 7/11/18 at 11:22 PM..
Reply With Quote
Need a home inspection in South Dakota? Check out InterNACHI's listing of South Dakota certified home inspectors. Or, find a home inspector anywhere in the world with our inspection search engine.
  #2  
Old 7/11/18, 10:14 PM
Roy D. Cooke, Sr's Avatar
Roy D. Cooke, Sr Roy D. Cooke, Sr is offline
Certified Professional Inspector (CPI) ®
 
Join Date: Aug 2003
Location: Brighton, ON
Posts: 26,852
Default Re: Basement Air Intake

I do not like vented Crawl spaces ..


http://www.advancedenergy.org/portal...ble%20Duty.pdf


https://info.ornl.gov/sites/publicat...s/Pub33059.pdf

Last edited by rcooke; 7/11/18 at 10:19 PM..
Reply With Quote
  #3  
Old 7/11/18, 11:23 PM
Joshua LeBeau's Avatar
Joshua LeBeau Joshua LeBeau is offline
Certified Professional Inspector (CPI) ®
 
Join Date: Oct 2017
Location: Rhode Island
Posts: 56
Default Re: Basement Air Intake

That is a lot of information Roy, thanks, but does that apply to a full size basement as well?




Joshua & Michelle LeBeau
www.HomeInspectionsbyJML.com
Reply With Quote
  #4  
Old 7/12/18, 6:38 AM
Joshua L. Frederick Joshua L. Frederick is online now
Certified Professional Inspector (CPI) ®
 
Join Date: Jan 2007
Location: Defiance, OH
Posts: 4,658
Send a message via AIM to jfrederick
Default Re: Basement Air Intake

Quote:
Originally Posted by jlebeau2 View Post
Four inch PVC pipe coming into the basement of the house attached to a fan.
Fan is drawing in air from the outside only when the oil fired hot water baseboard system is run.

The vertical insulated portion stops about 18" from the floor and it is anchored to the floor.

Has anyone seen this before and the purpose of it.

Why on a freezing cold day would you run the boiler and draw cold air into the basement?

Thanks in advance!
Combustion air for boiler.




http://northwestohiohomeinspector.com

Defiance home inspector
Northwest Ohio home inspector
Reply With Quote
  #5  
Old 7/12/18, 6:41 AM
Joshua L. Frederick Joshua L. Frederick is online now
Certified Professional Inspector (CPI) ®
 
Join Date: Jan 2007
Location: Defiance, OH
Posts: 4,658
Send a message via AIM to jfrederick
Default Re: Basement Air Intake

Quote:
Originally Posted by rcooke View Post
Roy, the info you provided has absolutely nothing to do with his post??




http://northwestohiohomeinspector.com

Defiance home inspector
Northwest Ohio home inspector
Reply With Quote
  #6  
Old 7/12/18, 6:53 AM
Roy D. Cooke, Sr's Avatar
Roy D. Cooke, Sr Roy D. Cooke, Sr is offline
Certified Professional Inspector (CPI) ®
 
Join Date: Aug 2003
Location: Brighton, ON
Posts: 26,852
Default Re: Basement Air Intake

Quote:
Originally Posted by jlebeau2 View Post
That is a lot of information Roy, thanks, but does that apply to a full size basement as well?

Yes full basement should not be open to the outside .
Reply With Quote
  #7  
Old 7/12/18, 7:21 AM
Marcel R. Cyr, CMI's Avatar
Marcel R. Cyr, CMI Marcel R. Cyr, CMI is offline
Certified Master Inspector ®
 
Join Date: Jul 2004
Location: Winslow, ME
Posts: 30,420
Default Re: Basement Air Intake

That could be a louvered control exterior combustion air intake fan.

Power Vent Openings & Louvers for Combustion Air



CMI 2004-2017 Retired

Awards Committee Member
U.S. Member of the Year Winner 2009
45 Years Residential/Commercial Builder
Submit your AWARDS NOMINATIONS here
The InterNACHI Awards Committee is the final authority of issuance of any award the committee offers and any rules updates.
Reply With Quote
  #8  
Old 7/12/18, 8:02 AM
Roy D. Cooke, Sr's Avatar
Roy D. Cooke, Sr Roy D. Cooke, Sr is offline
Certified Professional Inspector (CPI) ®
 
Join Date: Aug 2003
Location: Brighton, ON
Posts: 26,852
Default Re: Basement Air Intake

Quote:
Originally Posted by mcyr View Post
That could be a louvered control exterior combustion air intake fan.

Power Vent Openings & Louvers for Combustion Air

Thanks good information Marcel
Reply With Quote
  #9  
Old 7/12/18, 8:20 AM
John Olson John Olson is online now
Certified Professional Inspector (CPI)
 
Join Date: Aug 2014
Location: De Pere Wisconsin
Posts: 1,150
Default Re: Basement Air Intake

Thanks Marcel, I will see these with manual dampers, which makes no sense at all.
Reply With Quote
  #10  
Old 8/10/18, 9:16 AM
Jon Walter Jon Walter is offline
Community Guest
 
Join Date: Jun 2018
Posts: 7
Please Note: jwalter5 is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: Basement Air Intake

I noticed today that there is a massive air return in my unfinished basement. The opening is about 2 meters from the blower, and as large in diameter as the return duct coming from the upstairs
Will capping off this return or limiting the basement's supply vent cause any problems for the equipment, or lower efficiency?

Last edited by jwalter5; 8/10/18 at 11:16 AM..
Reply With Quote
Reply

Thread Tools

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


All times are GMT -4. The time now is 12:22 AM.
no new posts